Merge remote-tracking branch 'upstream/master'

CHANGELOG.md

@@ -1,10 +1,104 @@
-## v0.10.5 [unreleased]
+## v0.12.1 [unreleased]
+
+### Features
+- [#976](https://github.com/influxdata/telegraf/pull/976): Reduce allocations in the UDP and statsd inputs.
+- [#979](https://github.com/influxdata/telegraf/pull/979): Reduce allocations in the TCP listener.
+- [#935](https://github.com/influxdata/telegraf/pull/935): AWS Cloudwatch input plugin. Thanks @joshhardy & @ljosa!
+
+### Bugfixes
+- [#968](https://github.com/influxdata/telegraf/issues/968): Processes plugin gets unknown state when spaces are in (command name)
+- [#969](https://github.com/influxdata/telegraf/pull/969): ipmi_sensors: allow : in password. Thanks @awaw!
+- [#972](https://github.com/influxdata/telegraf/pull/972): dovecot: remove extra newline in dovecot command. Thanks @mrannanj!
+- [#645](https://github.com/influxdata/telegraf/issues/645): docker plugin i/o error on closed pipe. Thanks @tripledes!
+
+## v0.12.0 [2016-04-05]
+
+### Features
+- [#951](https://github.com/influxdata/telegraf/pull/951): Parse environment variables in the config file.
+- [#948](https://github.com/influxdata/telegraf/pull/948): Cleanup config file and make default package version include all plugins (but commented).
+- [#927](https://github.com/influxdata/telegraf/pull/927): Adds parsing of tags to the statsd input when using DataDog's dogstatsd extension
+- [#863](https://github.com/influxdata/telegraf/pull/863): AMQP output: allow external auth. Thanks @ekini!
+- [#707](https://github.com/influxdata/telegraf/pull/707): Improved prometheus plugin. Thanks @titilambert!
+- [#878](https://github.com/influxdata/telegraf/pull/878): Added json serializer. Thanks @ch3lo!
+- [#880](https://github.com/influxdata/telegraf/pull/880): Add the ability to specify the bearer token to the prometheus plugin. Thanks @jchauncey!
+- [#882](https://github.com/influxdata/telegraf/pull/882): Fixed SQL Server Plugin issues
+- [#849](https://github.com/influxdata/telegraf/issues/849): Adding ability to parse single values as an input data type.
+- [#844](https://github.com/influxdata/telegraf/pull/844): postgres_extensible plugin added. Thanks @menardorama!
+- [#866](https://github.com/influxdata/telegraf/pull/866): couchbase input plugin. Thanks @ljosa!
+- [#789](https://github.com/influxdata/telegraf/pull/789): Support multiple field specification and `field*` in graphite templates. Thanks @chrusty!
+- [#762](https://github.com/influxdata/telegraf/pull/762): Nagios parser for the exec plugin. Thanks @titilambert!
+- [#848](https://github.com/influxdata/telegraf/issues/848): Provide option to omit host tag from telegraf agent.
+- [#928](https://github.com/influxdata/telegraf/pull/928): Deprecating the statsd "convert_names" options, expose separator config.
+- [#919](https://github.com/influxdata/telegraf/pull/919): ipmi_sensor input plugin. Thanks @ebookbug!
+- [#945](https://github.com/influxdata/telegraf/pull/945): KAFKA output: codec, acks, and retry configuration. Thanks @framiere!
+
+### Bugfixes
+- [#890](https://github.com/influxdata/telegraf/issues/890): Create TLS config even if only ssl_ca is provided.
+- [#884](https://github.com/influxdata/telegraf/issues/884): Do not call write method if there are 0 metrics to write.
+- [#898](https://github.com/influxdata/telegraf/issues/898): Put database name in quotes, fixes special characters in the database name.
+- [#656](https://github.com/influxdata/telegraf/issues/656): No longer run `lsof` on linux to get netstat data, fixes permissions issue.
+- [#907](https://github.com/influxdata/telegraf/issues/907): Fix prometheus invalid label/measurement name key.
+- [#841](https://github.com/influxdata/telegraf/issues/841): Fix memcached unix socket panic.
+- [#873](https://github.com/influxdata/telegraf/issues/873): Fix SNMP plugin sometimes not returning metrics. Thanks @titiliambert!
+- [#934](https://github.com/influxdata/telegraf/pull/934): phpfpm: Fix fcgi uri path. Thanks @rudenkovk!
+- [#805](https://github.com/influxdata/telegraf/issues/805): Kafka consumer stops gathering after i/o timeout.
+- [#959](https://github.com/influxdata/telegraf/pull/959): reduce mongodb & prometheus collection timeouts. Thanks @PierreF!
+
+## v0.11.1 [2016-03-17]
+
+### Release Notes
+- Primarily this release was cut to fix [#859](https://github.com/influxdata/telegraf/issues/859)
+
+### Features
+- [#747](https://github.com/influxdata/telegraf/pull/747): Start telegraf on install & remove on uninstall. Thanks @pierref!
+- [#794](https://github.com/influxdata/telegraf/pull/794): Add service reload ability. Thanks @entertainyou!
+
+### Bugfixes
+- [#852](https://github.com/influxdata/telegraf/issues/852): Windows zip package fix
+- [#859](https://github.com/influxdata/telegraf/issues/859): httpjson plugin panic
+
+## v0.11.0 [2016-03-15]
 
 ### Release Notes
 
 ### Features
+- [#692](https://github.com/influxdata/telegraf/pull/770): Support InfluxDB retention policies
+- [#771](https://github.com/influxdata/telegraf/pull/771): Default timeouts for input plugns. Thanks @PierreF!
+- [#758](https://github.com/influxdata/telegraf/pull/758): UDP Listener input plugin, thanks @whatyouhide!
+- [#769](https://github.com/influxdata/telegraf/issues/769): httpjson plugin: allow specifying SSL configuration.
+- [#735](https://github.com/influxdata/telegraf/pull/735): SNMP Table feature. Thanks @titilambert!
+- [#754](https://github.com/influxdata/telegraf/pull/754): docker plugin: adding `docker info` metrics to output. Thanks @titilambert!
+- [#788](https://github.com/influxdata/telegraf/pull/788): -input-list and -output-list command-line options. Thanks @ebookbug!
+- [#778](https://github.com/influxdata/telegraf/pull/778): Adding a TCP input listener.
+- [#797](https://github.com/influxdata/telegraf/issues/797): Provide option for persistent MQTT consumer client sessions.
+- [#799](https://github.com/influxdata/telegraf/pull/799): Add number of threads for procstat input plugin. Thanks @titilambert!
+- [#776](https://github.com/influxdata/telegraf/pull/776): Add Zookeeper chroot option to kafka_consumer. Thanks @prune998!
+- [#811](https://github.com/influxdata/telegraf/pull/811): Add processes plugin for classifying total procs on system. Thanks @titilambert!
+- [#235](https://github.com/influxdata/telegraf/issues/235): Add number of users to the `system` input plugin.
+- [#826](https://github.com/influxdata/telegraf/pull/826): "kernel" linux plugin for /proc/stat metrics (context switches, interrupts, etc.)
+- [#847](https://github.com/influxdata/telegraf/pull/847): `ntpq`: Input plugin for running ntp query executable and gathering metrics.
 
 ### Bugfixes
+- [#748](https://github.com/influxdata/telegraf/issues/748): Fix sensor plugin split on ":"
+- [#722](https://github.com/influxdata/telegraf/pull/722): Librato output plugin fixes. Thanks @chrusty!
+- [#745](https://github.com/influxdata/telegraf/issues/745): Fix Telegraf toml parse panic on large config files. Thanks @titilambert!
+- [#781](https://github.com/influxdata/telegraf/pull/781): Fix mqtt_consumer username not being set. Thanks @chaton78!
+- [#786](https://github.com/influxdata/telegraf/pull/786): Fix mqtt output username not being set. Thanks @msangoi!
+- [#773](https://github.com/influxdata/telegraf/issues/773): Fix duplicate measurements in snmp plugin. Thanks @titilambert!
+- [#708](https://github.com/influxdata/telegraf/issues/708): packaging: build ARM package
+- [#713](https://github.com/influxdata/telegraf/issues/713): packaging: insecure permissions error on log directory
+- [#816](https://github.com/influxdata/telegraf/issues/816): Fix phpfpm panic if fcgi endpoint unreachable.
+- [#828](https://github.com/influxdata/telegraf/issues/828): fix net_response plugin overwriting host tag.
+- [#821](https://github.com/influxdata/telegraf/issues/821): Remove postgres password from server tag. Thanks @menardorama!
+
+## v0.10.4.1
+
+### Release Notes
+- Bug in the build script broke deb and rpm packages.
+
+### Bugfixes
+- [#750](https://github.com/influxdata/telegraf/issues/750): deb package broken
+- [#752](https://github.com/influxdata/telegraf/issues/752): rpm package broken
 
 ## v0.10.4 [2016-02-24]
 

CONTRIBUTING.md

@@ -80,7 +80,7 @@ func (s *Simple) SampleConfig() string {
     return "ok = true # indicate if everything is fine"
 }
 
-func (s *Simple) Gather(acc inputs.Accumulator) error {
+func (s *Simple) Gather(acc telegraf.Accumulator) error {
     if s.Ok {
         acc.Add("state", "pretty good", nil)
     } else {
@@ -114,7 +114,7 @@ creating the `Parser` object.
 You should also add the following to your SampleConfig() return:
 
 ```toml
-  ## Data format to consume. This can be "json", "influx" or "graphite"
+  ## Data format to consume. 
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
@@ -244,7 +244,7 @@ instantiating and creating the `Serializer` object.
 You should also add the following to your SampleConfig() return:
 
 ```toml
-  ## Data format to output. This can be "influx" or "graphite"
+  ## Data format to output. 
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md

Godeps

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Godeps_windows

@@ -1,56 +1,60 @@
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 github.com/hailocab/go-hostpool e80d13ce29ede4452c43dea11e79b9bc8a15b478
-github.com/influxdata/config bae7cb98197d842374d3b8403905924094930f24
+github.com/influxdata/config b79f6829346b8d6e78ba73544b1e1038f1f1c9da
-github.com/influxdata/influxdb ef571fc104dc24b77cd3710c156cd95e5cfd7aa5
+github.com/influxdata/influxdb c190778997f4154294e6160c41b90140641ac915
-github.com/jmespath/go-jmespath c01cf91b011868172fdcd9f41838e80c9d716264
+github.com/influxdata/toml af4df43894b16e3fd2b788d01bd27ad0776ef2d0
-github.com/klauspost/crc32 999f3125931f6557b991b2f8472172bdfa578d38
+github.com/jmespath/go-jmespath 0b12d6b521d83fc7f755e7cfc1b1fbdd35a01a74
-github.com/lib/pq 8ad2b298cadd691a77015666a5372eae5dbfac8f
+github.com/klauspost/crc32 19b0b332c9e4516a6370a0456e6182c3b5036720
+github.com/lib/pq e182dc4027e2ded4b19396d638610f2653295f36
 github.com/lxn/win 9a7734ea4db26bc593d52f6a8a957afdad39c5c1
 github.com/matttproud/golang_protobuf_extensions d0c3fe89de86839aecf2e0579c40ba3bb336a453
-github.com/miekg/dns e0d84d97e59bcb6561eae269c4e94d25b66822cb
+github.com/miekg/dns cce6c130cdb92c752850880fd285bea1d64439dd
 github.com/mreiferson/go-snappystream 028eae7ab5c4c9e2d1cb4c4ca1e53259bbe7e504
 github.com/naoina/go-stringutil 6b638e95a32d0c1131db0e7fe83775cbea4a0d0b
-github.com/naoina/toml 751171607256bb66e64c9f0220c00662420c38e9
+github.com/nats-io/nats b13fc9d12b0b123ebc374e6b808c6228ae4234a3
-github.com/nats-io/nats 6a83f1a633cfbfd90aa648ac99fb38c06a8b40df
+github.com/nats-io/nuid 4f84f5f3b2786224e336af2e13dba0a0a80b76fa
-github.com/nsqio/go-nsq 2118015c120962edc5d03325c680daf3163a8b5f
+github.com/nsqio/go-nsq 0b80d6f05e15ca1930e0c5e1d540ed627e299980
 github.com/pmezard/go-difflib 792786c7400a136282c1664665ae0a8db921c6c2
-github.com/prometheus/client_golang 67994f177195311c3ea3d4407ed0175e34a4256f
+github.com/prometheus/client_golang 18acf9993a863f4c4b40612e19cdd243e7c86831
 github.com/prometheus/client_model fa8ad6fec33561be4280a8f0514318c79d7f6cb6
-github.com/prometheus/common 14ca1097bbe21584194c15e391a9dab95ad42a59
+github.com/prometheus/common e8eabff8812b05acf522b45fdcd725a785188e37
 github.com/prometheus/procfs 406e5b7bfd8201a36e2bb5f7bdae0b03380c2ce8
 github.com/samuel/go-zookeeper 218e9c81c0dd8b3b18172b2bbfad92cc7d6db55f
-github.com/shirou/gopsutil e77438504d45b9985c99a75730fe65220ceea00e
+github.com/shirou/gopsutil 1f32ce1bb380845be7f5d174ac641a2c592c0c42
 github.com/shirou/w32 ada3ba68f000aa1b58580e45c9d308fe0b7fc5c5
 github.com/soniah/gosnmp b1b4f885b12c5dcbd021c5cee1c904110de6db7d
 github.com/streadway/amqp b4f3ceab0337f013208d31348b578d83c0064744
 github.com/stretchr/objx 1a9d0bb9f541897e62256577b352fdbc1fb4fd94
-github.com/stretchr/testify f390dcf405f7b83c997eac1b06768bb9f44dec18
+github.com/stretchr/testify 1f4a1643a57e798696635ea4c126e9127adb7d3c
 github.com/wvanbergen/kafka 1a8639a45164fcc245d5c7b4bd3ccfbd1a0ffbf3
 github.com/wvanbergen/kazoo-go 0f768712ae6f76454f987c3356177e138df258f8
 github.com/zensqlmonitor/go-mssqldb ffe5510c6fa5e15e6d983210ab501c815b56b363
-golang.org/x/net 04b9de9b512f58addf28c9853d50ebef61c3953e
+golang.org/x/net 6acef71eb69611914f7a30939ea9f6e194c78172
-golang.org/x/text 6d3c22c4525a4da167968fa2479be5524d2e8bd0
+golang.org/x/text a71fd10341b064c10f4a81ceac72bcf70f26ea34
-gopkg.in/dancannon/gorethink.v1 6f088135ff288deb9d5546f4c71919207f891a70
+gopkg.in/dancannon/gorethink.v1 7d1af5be49cb5ecc7b177bf387d232050299d6ef
 gopkg.in/fatih/pool.v2 cba550ebf9bce999a02e963296d4bc7a486cb715
-gopkg.in/mgo.v2 03c9f3ee4c14c8e51ee521a6a7d0425658dd6f64
+gopkg.in/mgo.v2 d90005c5262a3463800497ea5a89aed5fe22c886
-gopkg.in/yaml.v2 f7716cbe52baa25d2e9b0d0da546fcf909fc16b4
+gopkg.in/yaml.v2 a83829b6f1293c91addabc89d0571c246397bbf4

Makefile

@@ -22,8 +22,8 @@ build-windows:
 		./cmd/telegraf/telegraf.go
 
 build-for-docker:
-	CGO_ENABLED=0 GOOS=linux go -o telegraf -ldflags \
+	CGO_ENABLED=0 GOOS=linux go build -installsuffix cgo -o telegraf -ldflags \
-					"-X main.Version=$(VERSION)" \
+					"-s -X main.Version=$(VERSION)" \
 					./cmd/telegraf/telegraf.go
 
 # Build with race detector

README.md

@@ -17,26 +17,15 @@ new plugins.
 
 ## Installation:
 
-NOTE: Telegraf 0.10.x is **not** backwards-compatible with previous versions
-of telegraf, both in the database layout and the configuration file. 0.2.x
-will continue to be supported, see below for download links.
-
-For more details on the differences between Telegraf 0.2.x and 0.10.x, see
-the [release blog post](https://influxdata.com/blog/announcing-telegraf-0-10-0/).
-
 ### Linux deb and rpm Packages:
 
 Latest:
-* http://get.influxdb.org/telegraf/telegraf_0.10.4-1_amd64.deb
+* http://get.influxdb.org/telegraf/telegraf_0.12.0-1_amd64.deb
-* http://get.influxdb.org/telegraf/telegraf-0.10.4-1.x86_64.rpm
+* http://get.influxdb.org/telegraf/telegraf-0.12.0-1.x86_64.rpm
 
 Latest (arm):
-* http://get.influxdb.org/telegraf/telegraf_0.10.4-1_arm.deb
+* http://get.influxdb.org/telegraf/telegraf_0.12.0-1_armhf.deb
-* http://get.influxdb.org/telegraf/telegraf-0.10.4-1.arm.rpm
+* http://get.influxdb.org/telegraf/telegraf-0.12.0-1.armhf.rpm
-
-0.2.x:
-* http://get.influxdb.org/telegraf/telegraf_0.2.4_amd64.deb
-* http://get.influxdb.org/telegraf/telegraf-0.2.4-1.x86_64.rpm
 
 ##### Package Instructions:
 
@@ -50,35 +39,40 @@ controlled via `systemctl [action] telegraf`
 ### yum/apt Repositories:
 
 There is a yum/apt repo available for the whole InfluxData stack, see
-[here](https://docs.influxdata.com/influxdb/v0.9/introduction/installation/#installation)
+[here](https://docs.influxdata.com/influxdb/v0.10/introduction/installation/#installation)
-for instructions, replacing the `influxdb` package name with `telegraf`.
+for instructions on setting up the repo. Once it is configured, you will be able
+to use this repo to install & update telegraf.
 
 ### Linux tarballs:
 
 Latest:
-* http://get.influxdb.org/telegraf/telegraf-0.10.4-1_linux_amd64.tar.gz
+* http://get.influxdb.org/telegraf/telegraf-0.12.0-1_linux_amd64.tar.gz
-* http://get.influxdb.org/telegraf/telegraf-0.10.4-1_linux_i386.tar.gz
+* http://get.influxdb.org/telegraf/telegraf-0.12.0-1_linux_i386.tar.gz
-* http://get.influxdb.org/telegraf/telegraf-0.10.4-1_linux_arm.tar.gz
+* http://get.influxdb.org/telegraf/telegraf-0.12.0-1_linux_armhf.tar.gz
-
-0.2.x:
-* http://get.influxdb.org/telegraf/telegraf_linux_amd64_0.2.4.tar.gz
-* http://get.influxdb.org/telegraf/telegraf_linux_386_0.2.4.tar.gz
-* http://get.influxdb.org/telegraf/telegraf_linux_arm_0.2.4.tar.gz
 
 ##### tarball Instructions:
 
 To install the full directory structure with config file, run:
 
 ```
-sudo tar -C / -zxvf ./telegraf-0.10.4-1_linux_amd64.tar.gz
+sudo tar -C / -zxvf ./telegraf-0.12.0-1_linux_amd64.tar.gz
 ```
 
 To extract only the binary, run:
 
 ```
-tar -zxvf telegraf-0.10.4-1_linux_amd64.tar.gz --strip-components=3 ./usr/bin/telegraf
+tar -zxvf telegraf-0.12.0-1_linux_amd64.tar.gz --strip-components=3 ./usr/bin/telegraf
 ```
 
+### FreeBSD tarball:
+
+Latest:
+* http://get.influxdb.org/telegraf/telegraf-0.12.0-1_freebsd_amd64.tar.gz
+
+##### tarball Instructions:
+
+See linux instructions above.
+
 ### Ansible Role:
 
 Ansible role: https://github.com/rossmcdonald/telegraf
@@ -93,8 +87,8 @@ brew install telegraf
 ### Windows Binaries (EXPERIMENTAL)
 
 Latest:
-* http://get.influxdb.org/telegraf/telegraf-0.10.4-1_windows_amd64.zip
+* http://get.influxdb.org/telegraf/telegraf-0.12.0-1_windows_amd64.zip
-* http://get.influxdb.org/telegraf/telegraf-0.10.4-1_windows_i386.zip
+* http://get.influxdb.org/telegraf/telegraf-0.12.0-1_windows_i386.zip
 
 ### From Source:
 
@@ -162,51 +156,56 @@ more information on each, please look at the directory of the same name in
 
 Currently implemented sources:
 
-* aerospike
+* [aws cloudwatch](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/cloudwatch)
-* apache
+* [aerospike](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/aerospike)
-* bcache
+* [apache](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/apache)
-* couchdb
+* [bcache](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/bcache)
-* disque
+* [couchbase](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/couchbase)
-* dns query time
+* [couchdb](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/couchdb)
-* docker
+* [disque](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/disque)
-* dovecot
+* [dns query time](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/dns_query)
-* elasticsearch
+* [docker](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/docker)
-* exec (generic executable plugin, support JSON, influx and graphite)
+* [dovecot](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/dovecot)
-* haproxy
+* [elasticsearch](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/elasticsearch)
-* httpjson (generic JSON-emitting http service plugin)
+* [exec](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/exec ) (generic executable plugin, support JSON, influx, graphite and nagios)
-* influxdb
+* [haproxy](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/haproxy)
-* jolokia
+* [httpjson ](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/httpjson ) (generic JSON-emitting http service plugin)
-* leofs
+* [influxdb](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/influxdb)
-* lustre2
+* [ipmi_sensor](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/ipmi_sensor)
-* mailchimp
+* [jolokia](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/jolokia)
-* memcached
+* [leofs](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/leofs)
-* mesos
+* [lustre2](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/lustre2)
-* mongodb
+* [mailchimp](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/mailchimp)
-* mysql
+* [memcached](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/memcached)
-* net_response
+* [mesos](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/mesos)
-* nginx
+* [mongodb](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/mongodb)
-* nsq
+* [mysql](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/mysql)
-* phpfpm
+* [net_response](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/net_response)
-* phusion passenger
+* [nginx](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/nginx)
-* ping
+* [nsq](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/nsq)
-* postgresql
+* [ntpq](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/ntpq)
-* powerdns
+* [phpfpm](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/phpfpm)
-* procstat
+* [phusion passenger](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/passenger)
-* prometheus
+* [ping](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/ping)
-* puppetagent
+* [postgresql](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/postgresql)
-* rabbitmq
+* [postgresql_extensible](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/postgresql_extensible)
-* raindrops
+* [powerdns](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/powerdns)
-* redis
+* [procstat](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/procstat)
-* rethinkdb
+* [prometheus](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/prometheus)
-* riak
+* [puppetagent](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/puppetagent)
-* sensors (only available if built from source)
+* [rabbitmq](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/rabbitmq)
-* snmp
+* [raindrops](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/raindrops)
-* sql server (microsoft)
+* [redis](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/redis)
-* twemproxy
+* [rethinkdb](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/rethinkdb)
-* zfs
+* [riak](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/riak)
-* zookeeper
+* [sensors ](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/sensors) (only available if built from source)
-* win_perf_counters (windows performance counters)
+* [snmp](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/snmp)
-* system
+* [sql server](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/sqlserver) (microsoft)
+* [twemproxy](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/twemproxy)
+* [zfs](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/zfs)
+* [zookeeper](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/zookeeper)
+* [win_perf_counters ](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/win_perf_counters) (windows performance counters)
+* [system](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/system)
     * cpu
     * mem
     * net
@@ -214,34 +213,38 @@ Currently implemented sources:
     * disk
     * diskio
     * swap
+    * processes
+    * kernel (/proc/stat)
 
 Telegraf can also collect metrics via the following service plugins:
 
-* statsd
+* [statsd](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/statsd)
-* mqtt_consumer
+* [udp_listener](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/udp_listener)
-* kafka_consumer
+* [tcp_listener](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/tcp_listener)
-* nats_consumer
+* [mqtt_consumer](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/mqtt_consumer)
-* github_webhooks
+* [kafka_consumer](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/kafka_consumer)
+* [nats_consumer](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/nats_consumer)
+* [github_webhooks](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/github_webhooks)
 
 We'll be adding support for many more over the coming months. Read on if you
 want to add support for another service or third-party API.
 
 ## Supported Output Plugins
 
-* influxdb
+* [influxdb](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/influxdb)
-* amon
+* [amon](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/amon)
-* amqp
+* [amqp](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/amqp)
-* aws kinesis
+* [aws kinesis](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/kinesis)
-* aws cloudwatch
+* [aws cloudwatch](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/cloudwatch)
-* datadog
+* [datadog](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/datadog)
-* graphite
+* [graphite](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/graphite)
-* kafka
+* [kafka](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/kafka)
-* librato
+* [librato](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/librato)
-* mqtt
+* [mqtt](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/mqtt)
-* nsq
+* [nsq](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/nsq)
-* opentsdb
+* [opentsdb](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/opentsdb)
-* prometheus
+* [prometheus](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/prometheus_client)
-* riemann
+* [riemann](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/riemann)
 
 ## Contributing
 

agent/accumulator.go

@@ -105,7 +105,6 @@ func (ac *accumulator) AddFields(
 				continue
 			}
 		}
-		result[k] = v
 
 		// Validate uint64 and float64 fields
 		switch val := v.(type) {
@@ -116,6 +115,7 @@ func (ac *accumulator) AddFields(
 			} else {
 				result[k] = int64(9223372036854775807)
 			}
+			continue
 		case float64:
 			// NaNs are invalid values in influxdb, skip measurement
 			if math.IsNaN(val) || math.IsInf(val, 0) {
@@ -127,6 +127,8 @@ func (ac *accumulator) AddFields(
 				continue
 			}
 		}
+
+		result[k] = v
 	}
 	fields = nil
 	if len(result) == 0 {
@@ -168,5 +170,8 @@ func (ac *accumulator) setDefaultTags(tags map[string]string) {
 }
 
 func (ac *accumulator) addDefaultTag(key, value string) {
+	if ac.defaultTags == nil {
+		ac.defaultTags = make(map[string]string)
+	}
 	ac.defaultTags[key] = value
 }

agent/accumulator_test.go

@@ -0,0 +1,302 @@
+package agent
+
+import (
+	"fmt"
+	"math"
+	"testing"
+	"time"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/internal/models"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAdd(t *testing.T) {
+	a := accumulator{}
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	a.Add("acctest", float64(101), map[string]string{})
+	a.Add("acctest", float64(101), map[string]string{"acc": "test"})
+	a.Add("acctest", float64(101), map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest value=101")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Contains(t, actual, "acctest,acc=test value=101")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test value=101 %d", now.UnixNano()),
+		actual)
+}
+
+func TestAddDefaultTags(t *testing.T) {
+	a := accumulator{}
+	a.addDefaultTag("default", "tag")
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	a.Add("acctest", float64(101), map[string]string{})
+	a.Add("acctest", float64(101), map[string]string{"acc": "test"})
+	a.Add("acctest", float64(101), map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest,default=tag value=101")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Contains(t, actual, "acctest,acc=test,default=tag value=101")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test,default=tag value=101 %d", now.UnixNano()),
+		actual)
+}
+
+func TestAddFields(t *testing.T) {
+	a := accumulator{}
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	fields := map[string]interface{}{
+		"usage": float64(99),
+	}
+	a.AddFields("acctest", fields, map[string]string{})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest usage=99")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Contains(t, actual, "acctest,acc=test usage=99")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test usage=99 %d", now.UnixNano()),
+		actual)
+}
+
+// Test that all Inf fields get dropped, and not added to metrics channel
+func TestAddInfFields(t *testing.T) {
+	inf := math.Inf(1)
+	ninf := math.Inf(-1)
+
+	a := accumulator{}
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	fields := map[string]interface{}{
+		"usage":  inf,
+		"nusage": ninf,
+	}
+	a.AddFields("acctest", fields, map[string]string{})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)
+
+	assert.Len(t, a.metrics, 0)
+
+	// test that non-inf fields are kept and not dropped
+	fields["notinf"] = float64(100)
+	a.AddFields("acctest", fields, map[string]string{})
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest notinf=100")
+}
+
+// Test that nan fields are dropped and not added
+func TestAddNaNFields(t *testing.T) {
+	nan := math.NaN()
+
+	a := accumulator{}
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	fields := map[string]interface{}{
+		"usage": nan,
+	}
+	a.AddFields("acctest", fields, map[string]string{})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)
+
+	assert.Len(t, a.metrics, 0)
+
+	// test that non-nan fields are kept and not dropped
+	fields["notnan"] = float64(100)
+	a.AddFields("acctest", fields, map[string]string{})
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest notnan=100")
+}
+
+func TestAddUint64Fields(t *testing.T) {
+	a := accumulator{}
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	fields := map[string]interface{}{
+		"usage": uint64(99),
+	}
+	a.AddFields("acctest", fields, map[string]string{})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest usage=99i")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Contains(t, actual, "acctest,acc=test usage=99i")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test usage=99i %d", now.UnixNano()),
+		actual)
+}
+
+func TestAddUint64Overflow(t *testing.T) {
+	a := accumulator{}
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	fields := map[string]interface{}{
+		"usage": uint64(9223372036854775808),
+	}
+	a.AddFields("acctest", fields, map[string]string{})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest usage=9223372036854775807i")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Contains(t, actual, "acctest,acc=test usage=9223372036854775807i")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test usage=9223372036854775807i %d", now.UnixNano()),
+		actual)
+}
+
+func TestAddInts(t *testing.T) {
+	a := accumulator{}
+	a.addDefaultTag("default", "tag")
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	a.Add("acctest", int(101), map[string]string{})
+	a.Add("acctest", int32(101), map[string]string{"acc": "test"})
+	a.Add("acctest", int64(101), map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest,default=tag value=101i")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Contains(t, actual, "acctest,acc=test,default=tag value=101i")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test,default=tag value=101i %d", now.UnixNano()),
+		actual)
+}
+
+func TestAddFloats(t *testing.T) {
+	a := accumulator{}
+	a.addDefaultTag("default", "tag")
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	a.Add("acctest", float32(101), map[string]string{"acc": "test"})
+	a.Add("acctest", float64(101), map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest,acc=test,default=tag value=101")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test,default=tag value=101 %d", now.UnixNano()),
+		actual)
+}
+
+func TestAddStrings(t *testing.T) {
+	a := accumulator{}
+	a.addDefaultTag("default", "tag")
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	a.Add("acctest", "test", map[string]string{"acc": "test"})
+	a.Add("acctest", "foo", map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest,acc=test,default=tag value=\"test\"")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test,default=tag value=\"foo\" %d", now.UnixNano()),
+		actual)
+}
+
+func TestAddBools(t *testing.T) {
+	a := accumulator{}
+	a.addDefaultTag("default", "tag")
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	a.Add("acctest", true, map[string]string{"acc": "test"})
+	a.Add("acctest", false, map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest,acc=test,default=tag value=true")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test,default=tag value=false %d", now.UnixNano()),
+		actual)
+}

agent/agent.go

@@ -27,17 +27,19 @@ func NewAgent(config *config.Config) (*Agent, error) {
 		Config: config,
 	}
 
-	if a.Config.Agent.Hostname == "" {
+	if !a.Config.Agent.OmitHostname {
-		hostname, err := os.Hostname()
+		if a.Config.Agent.Hostname == "" {
-		if err != nil {
+			hostname, err := os.Hostname()
-			return nil, err
+			if err != nil {
+				return nil, err
+			}
+
+			a.Config.Agent.Hostname = hostname
 		}
 
-		a.Config.Agent.Hostname = hostname
+		config.Tags["host"] = a.Config.Agent.Hostname
 	}
 
-	config.Tags["host"] = a.Config.Agent.Hostname
-
 	return a, nil
 }
 

agent/agent_test.go

@@ -1,7 +1,6 @@
 package agent
 
 import (
-	"github.com/stretchr/testify/assert"
 	"testing"
 	"time"
 
@@ -11,8 +10,18 @@ import (
 	_ "github.com/influxdata/telegraf/plugins/inputs/all"
 	// needing to load the outputs
 	_ "github.com/influxdata/telegraf/plugins/outputs/all"
+
+	"github.com/stretchr/testify/assert"
 )
 
+func TestAgent_OmitHostname(t *testing.T) {
+	c := config.NewConfig()
+	c.Agent.OmitHostname = true
+	_, err := NewAgent(c)
+	assert.NoError(t, err)
+	assert.NotContains(t, c.Tags, "host")
+}
+
 func TestAgent_LoadPlugin(t *testing.T) {
 	c := config.NewConfig()
 	c.InputFilters = []string{"mysql"}

circle.yml

@@ -4,9 +4,9 @@ machine:
   post:
     - sudo service zookeeper stop
     - go version
-    - go version | grep 1.5.3 || sudo rm -rf /usr/local/go
+    - go version | grep 1.6 || sudo rm -rf /usr/local/go
-    - wget https://storage.googleapis.com/golang/go1.5.3.linux-amd64.tar.gz
+    - wget https://storage.googleapis.com/golang/go1.6.linux-amd64.tar.gz
-    - sudo tar -C /usr/local -xzf go1.5.3.linux-amd64.tar.gz
+    - sudo tar -C /usr/local -xzf go1.6.linux-amd64.tar.gz
     - go version
 
 dependencies:

cmd/telegraf/telegraf.go

@@ -11,8 +11,9 @@ import (
 
 	"github.com/influxdata/telegraf/agent"
 	"github.com/influxdata/telegraf/internal/config"
-
+	"github.com/influxdata/telegraf/plugins/inputs"
 	_ "github.com/influxdata/telegraf/plugins/inputs/all"
+	"github.com/influxdata/telegraf/plugins/outputs"
 	_ "github.com/influxdata/telegraf/plugins/outputs/all"
 )
 
@@ -30,11 +31,14 @@ var fSampleConfig = flag.Bool("sample-config", false,
 var fPidfile = flag.String("pidfile", "", "file to write our pid to")
 var fInputFilters = flag.String("input-filter", "",
 	"filter the inputs to enable, separator is :")
+var fInputList = flag.Bool("input-list", false,
+	"print available input plugins.")
 var fOutputFilters = flag.String("output-filter", "",
 	"filter the outputs to enable, separator is :")
+var fOutputList = flag.Bool("output-list", false,
+	"print available output plugins.")
 var fUsage = flag.String("usage", "",
 	"print usage for a plugin, ie, 'telegraf -usage mysql'")
-
 var fInputFiltersLegacy = flag.String("filter", "",
 	"filter the inputs to enable, separator is :")
 var fOutputFiltersLegacy = flag.String("outputfilter", "",
@@ -59,7 +63,9 @@ The flags are:
   -sample-config     print out full sample configuration to stdout
   -config-directory  directory containing additional *.conf files
   -input-filter      filter the input plugins to enable, separator is :
+  -input-list        print all the plugins inputs
   -output-filter     filter the output plugins to enable, separator is :
+  -output-list       print all the available outputs
   -usage             print usage for a plugin, ie, 'telegraf -usage mysql'
   -debug             print metrics as they're generated to stdout
   -quiet             run in quiet mode
@@ -90,8 +96,9 @@ func main() {
 		reload <- false
 		flag.Usage = func() { usageExit(0) }
 		flag.Parse()
+		args := flag.Args()
 
-		if flag.NFlag() == 0 {
+		if flag.NFlag() == 0 && len(args) == 0 {
 			usageExit(0)
 		}
 
@@ -115,6 +122,34 @@ func main() {
 			outputFilters = strings.Split(":"+outputFilter+":", ":")
 		}
 
+		if len(args) > 0 {
+			switch args[0] {
+			case "version":
+				v := fmt.Sprintf("Telegraf - Version %s", Version)
+				fmt.Println(v)
+				return
+			case "config":
+				config.PrintSampleConfig(inputFilters, outputFilters)
+				return
+			}
+		}
+
+		if *fOutputList {
+			fmt.Println("Available Output Plugins:")
+			for k, _ := range outputs.Outputs {
+				fmt.Printf("  %s\n", k)
+			}
+			return
+		}
+
+		if *fInputList {
+			fmt.Println("Available Input Plugins:")
+			for k, _ := range inputs.Inputs {
+				fmt.Printf("  %s\n", k)
+			}
+			return
+		}
+
 		if *fVersion {
 			v := fmt.Sprintf("Telegraf - Version %s", Version)
 			fmt.Println(v)

docs/CONFIGURATION.md

@@ -9,6 +9,12 @@ To generate a file with specific inputs and outputs, you can use the
 -input-filter and -output-filter flags:
 `telegraf -sample-config -input-filter cpu:mem:net:swap -output-filter influxdb:kafka`
 
+## Environment Variables
+
+Environment variables can be used anywhere in the config file, simply prepend
+them with $. For strings the variable must be within quotes (ie, "$STR_VAR"),
+for numbers and booleans they should be plain (ie, $INT_VAR, $BOOL_VAR)
+
 ## `[global_tags]` Configuration
 
 Global tags can be specific in the `[global_tags]` section of the config file in
@@ -97,7 +103,7 @@ fields which begin with `time_`.
   percpu = true
   totalcpu = false
   # filter all fields beginning with 'time_'
-  drop = ["time_*"]
+  fielddrop = ["time_*"]
 ```
 
 #### Input Config: tagpass and tagdrop
@@ -106,7 +112,7 @@ fields which begin with `time_`.
 [[inputs.cpu]]
   percpu = true
   totalcpu = false
-  drop = ["cpu_time"]
+  fielddrop = ["cpu_time"]
   # Don't collect CPU data for cpu6 & cpu7
   [inputs.cpu.tagdrop]
     cpu = [ "cpu6", "cpu7" ]
@@ -141,12 +147,12 @@ fields which begin with `time_`.
 # Drop all metrics about containers for kubelet
 [[inputs.prometheus]]
   urls = ["http://kube-node-1:4194/metrics"]
-  namedrop = ["container_"]
+  namedrop = ["container_*"]
 
 # Only store rest client related metrics for kubelet
 [[inputs.prometheus]]
   urls = ["http://kube-node-1:4194/metrics"]
-  namepass = ["rest_client_"]
+  namepass = ["rest_client_*"]
 ```
 
 #### Input config: prefix, suffix, and override
@@ -199,7 +205,7 @@ to avoid measurement collisions:
   percpu = true
   totalcpu = false
   name_override = "percpu_usage"
-  drop = ["cpu_time*"]
+  fielddrop = ["cpu_time*"]
 ```
 
 ## `[outputs.xxx]` Configuration

docs/DATA_FORMATS_INPUT.md

@@ -1,5 +1,13 @@
 # Telegraf Input Data Formats
 
+Telegraf is able to parse the following input data formats into metrics:
+
+1. [InfluxDB Line Protocol](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md#influx)
+1. [JSON](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md#json)
+1. [Graphite](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md#graphite)
+1. [Value](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md#value), ie: 45 or "booyah"
+1. [Nagios](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md#nagios) (exec input only)
+
 Telegraf metrics, like InfluxDB
 [points](https://docs.influxdata.com/influxdb/v0.10/write_protocols/line/),
 are a combination of four basic parts:
@@ -31,7 +39,7 @@ example, in the exec plugin:
   ## measurement name suffix (for separating different commands)
   name_suffix = "_mycollector"
 
-  ## Data format to consume. This can be "json", "influx" or "graphite"
+  ## Data format to consume.
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
@@ -43,7 +51,7 @@ example, in the exec plugin:
 Each data_format has an additional set of configuration options available, which
 I'll go over below.
 
-## Influx:
+# Influx:
 
 There are no additional configuration options for InfluxDB line-protocol. The
 metrics are parsed directly into Telegraf metrics.
@@ -58,14 +66,14 @@ metrics are parsed directly into Telegraf metrics.
   ## measurement name suffix (for separating different commands)
   name_suffix = "_mycollector"
 
-  ## Data format to consume. This can be "json", "influx" or "graphite"
+  ## Data format to consume.
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
   data_format = "influx"
 ```
 
-## JSON:
+# JSON:
 
 The JSON data format flattens JSON into metric _fields_. For example, this JSON:
 
@@ -103,7 +111,7 @@ For example, if you had this configuration:
   ## measurement name suffix (for separating different commands)
   name_suffix = "_mycollector"
 
-  ## Data format to consume. This can be "json", "influx" or "graphite"
+  ## Data format to consume.
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
@@ -134,7 +142,38 @@ Your Telegraf metrics would get tagged with "my_tag_1"
 exec_mycollector,my_tag_1=foo a=5,b_c=6
 ```
 
-## Graphite:
+# Value:
+
+The "value" data format translates single values into Telegraf metrics. This
+is done by assigning a measurement name and setting a single field ("value")
+as the parsed metric.
+
+#### Value Configuration:
+
+You **must** tell Telegraf what type of metric to collect by using the
+`data_type` configuration option.
+
+**Note:** It is also recommended that you set `name_override` to a measurement
+name that makes sense for your metric, otherwise it will just be set to the
+name of the plugin.
+
+```toml
+[[inputs.exec]]
+  ## Commands array
+  commands = ["cat /proc/sys/kernel/random/entropy_avail"]
+
+  ## override the default metric name of "exec"
+  name_override = "entropy_available"
+
+  ## Data format to consume.
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
+  data_format = "value"
+  data_type = "integer" # required
+```
+
+# Graphite:
 
 The Graphite data format translates graphite _dot_ buckets directly into
 telegraf measurement names, with a single value field, and without any tags. For
@@ -181,17 +220,32 @@ So the following template:
 
 ```toml
 templates = [
-    "measurement.measurement.field.region"
+    "measurement.measurement.field.field.region"
 ]
 ```
 
 would result in the following Graphite -> Telegraf transformation.
 
 ```
-cpu.usage.idle.us-west 100
+cpu.usage.idle.percent.us-west 100
-=> cpu_usage,region=us-west idle=100
+=> cpu_usage,region=us-west idle_percent=100
 ```
 
+The field key can also be derived from the second "half" of the input metric-name by specifying ```field*```:
+```toml
+templates = [
+    "measurement.measurement.region.field*"
+]
+```
+
+would result in the following Graphite -> Telegraf transformation.
+
+```
+cpu.usage.us-west.idle.percentage 100
+=> cpu_usage,region=us-west idle_percentage=100
+```
+(This cannot be used in conjunction with "measurement*"!)
+
 #### Filter Templates:
 
 Users can also filter the template(s) to use based on the name of the bucket,
@@ -247,7 +301,7 @@ There are many more options available,
   ## measurement name suffix (for separating different commands)
   name_suffix = "_mycollector"
 
-  ## Data format to consume. This can be "json", "influx" or "graphite" (line-protocol)
+  ## Data format to consume.
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
@@ -272,3 +326,27 @@ There are many more options available,
     "measurement*"
   ]
 ```
+
+# Nagios:
+
+There are no additional configuration options for Nagios line-protocol. The
+metrics are parsed directly into Telegraf metrics.
+
+Note: Nagios Input Data Formats is only supported in `exec` input plugin.
+
+#### Nagios Configuration:
+
+```toml
+[[inputs.exec]]
+  ## Commands array
+  commands = ["/usr/lib/nagios/plugins/check_load", "-w 5,6,7 -c 7,8,9"]
+
+  ## measurement name suffix (for separating different commands)
+  name_suffix = "_mycollector"
+
+  ## Data format to consume.
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
+  data_format = "nagios"
+```

docs/DATA_FORMATS_OUTPUT.md

@@ -29,7 +29,8 @@ config option, for example, in the `file` output plugin:
   ## Files to write to, "stdout" is a specially handled file.
   files = ["stdout"]
 
-  ## Data format to output. This can be "influx" or "graphite"
+  ## Data format to output. 
+
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md
@@ -53,7 +54,8 @@ metrics are serialized directly into InfluxDB line-protocol.
   ## Files to write to, "stdout" is a specially handled file.
   files = ["stdout", "/tmp/metrics.out"]
 
-  ## Data format to output. This can be "influx" or "graphite"
+  ## Data format to output. 
+
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md
@@ -87,7 +89,8 @@ tars.cpu-total.us-east-1.cpu.usage_idle 98.09 1455320690
   ## Files to write to, "stdout" is a specially handled file.
   files = ["stdout", "/tmp/metrics.out"]
 
-  ## Data format to output. This can be "influx" or "graphite"
+  ## Data format to output. 
+
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md
@@ -95,3 +98,38 @@ tars.cpu-total.us-east-1.cpu.usage_idle 98.09 1455320690
 
   prefix = "telegraf"
 ```
+
+## Json:
+
+The Json data format serialized Telegraf metrics in json format. The format is:
+
+```json
+{
+   "fields":{
+      "field_1":30,
+      "field_2":4,
+      "field_N":59,
+      "n_images":660
+   },
+   "name":"docker",
+   "tags":{
+      "host":"raynor"
+   },
+   "timestamp":1458229140
+}
+```
+
+#### Json Configuration:
+
+```toml
+[[outputs.file]]
+  ## Files to write to, "stdout" is a specially handled file.
+  files = ["stdout", "/tmp/metrics.out"]
+
+  ## Data format to output. 
+
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md
+  data_format = "json"
+```

docs/WINDOWS_SERVICE.md

@@ -0,0 +1,36 @@
+# Running Telegraf as a Windows Service
+
+If you have tried to install Go binaries as Windows Services with the **sc.exe**
+tool you may have seen that the service errors and stops running after a while.
+
+**NSSM** (the Non-Sucking Service Manager) is a tool that helps you in a 
+[number of scenarios](http://nssm.cc/scenarios) including running Go binaries
+that were not specifically designed to run only in Windows platforms.
+
+## NSSM Installation via Chocolatey
+
+You can install [Chocolatey](https://chocolatey.org/) and [NSSM](http://nssm.cc/) 
+with these commands
+
+```powershell
+iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1'))
+choco install -y nssm
+```
+
+## Installing Telegraf as a Windows Service with NSSM
+
+You can download the latest Telegraf Windows binaries (still Experimental at 
+the moment) from [the Telegraf Github repo](https://github.com/influxdata/telegraf).
+
+Then you can create a C:\telegraf folder, unzip the binary there and modify the 
+**telegraf.conf** sample to allocate the metrics you want to send to **InfluxDB**.
+
+Once you have NSSM installed in your system, the process is quite straightforward.
+You only need to type this command in your Windows shell
+
+```powershell
+nssm install Telegraf c:\telegraf\telegraf.exe -config c:\telegraf\telegraf.config
+```
+
+And now your service will be installed in Windows and you will be able to start and
+stop it gracefully

etc/telegraf_windows.conf

@@ -24,7 +24,7 @@
 
   ## Telegraf will cache metric_buffer_limit metrics for each output, and will
   ## flush this buffer on a successful write.
-  metric_buffer_limit = 10000
+  metric_buffer_limit = 1000
   ## Flush the buffer whenever full, regardless of flush_interval.
   flush_buffer_when_full = true
 

internal/config/config.go

@@ -1,11 +1,14 @@
 package config
 
 import (
+	"bytes"
 	"errors"
 	"fmt"
 	"io/ioutil"
 	"log"
+	"os"
 	"path/filepath"
+	"regexp"
 	"sort"
 	"strings"
 	"time"
@@ -19,7 +22,20 @@ import (
 	"github.com/influxdata/telegraf/plugins/serializers"
 
 	"github.com/influxdata/config"
-	"github.com/naoina/toml/ast"
+	"github.com/influxdata/toml"
+	"github.com/influxdata/toml/ast"
+)
+
+var (
+	// Default input plugins
+	inputDefaults = []string{"cpu", "mem", "swap", "system", "kernel",
+		"processes", "disk", "diskio"}
+
+	// Default output plugins
+	outputDefaults = []string{"influxdb"}
+
+	// envVarRe is a regex to find environment variables in the config file
+	envVarRe = regexp.MustCompile(`\$\w+`)
 )
 
 // Config specifies the URL/user/password for the database that telegraf
@@ -97,8 +113,9 @@ type AgentConfig struct {
 	Debug bool
 
 	// Quiet is the option for running in quiet mode
-	Quiet    bool
+	Quiet        bool
-	Hostname string
+	Hostname     string
+	OmitHostname bool
 }
 
 // Inputs returns a list of strings of the configured inputs.
@@ -134,20 +151,28 @@ func (c *Config) ListTags() string {
 }
 
 var header = `# Telegraf Configuration
-
+#
 # Telegraf is entirely plugin driven. All metrics are gathered from the
 # declared inputs, and sent to the declared outputs.
-
+#
 # Plugins must be declared in here to be active.
 # To deactivate a plugin, comment out the name and any variables.
-
+#
 # Use 'telegraf -config telegraf.conf -test' to see what metrics a config
 # file would generate.
+#
+# Environment variables can be used anywhere in this config file, simply prepend
+# them with $. For strings the variable must be within quotes (ie, "$STR_VAR"),
+# for numbers and booleans they should be plain (ie, $INT_VAR, $BOOL_VAR)
+
 
 # Global tags can be specified here in key="value" format.
 [global_tags]
   # dc = "us-east-1" # will tag all metrics with dc=us-east-1
   # rack = "1a"
+  ## Environment variables can be used as tags, and throughout the config file
+  # user = "$USER"
+
 
 # Configuration for telegraf agent
 [agent]
@@ -159,7 +184,7 @@ var header = `# Telegraf Configuration
 
   ## Telegraf will cache metric_buffer_limit metrics for each output, and will
   ## flush this buffer on a successful write.
-  metric_buffer_limit = 10000
+  metric_buffer_limit = 1000
   ## Flush the buffer whenever full, regardless of flush_interval.
   flush_buffer_when_full = true
 
@@ -183,34 +208,111 @@ var header = `# Telegraf Configuration
   quiet = false
   ## Override default hostname, if empty use os.Hostname()
   hostname = ""
+  ## If set to true, do no set the "host" tag in the telegraf agent.
+  omit_hostname = false
 
 
-#
+###############################################################################
-# OUTPUTS:
+#                            OUTPUT PLUGINS                                   #
-#
+###############################################################################
-
 `
 
-var pluginHeader = `
+var inputHeader = `
-#
+
-# INPUTS:
+###############################################################################
-#
+#                            INPUT PLUGINS                                    #
+###############################################################################
 `
 
 var serviceInputHeader = `
-#
+
-# SERVICE INPUTS:
+###############################################################################
-#
+#                            SERVICE INPUT PLUGINS                            #
+###############################################################################
 `
 
 // PrintSampleConfig prints the sample config
-func PrintSampleConfig(pluginFilters []string, outputFilters []string) {
+func PrintSampleConfig(inputFilters []string, outputFilters []string) {
 	fmt.Printf(header)
 
+	if len(outputFilters) != 0 {
+		printFilteredOutputs(outputFilters, false)
+	} else {
+		printFilteredOutputs(outputDefaults, false)
+		// Print non-default outputs, commented
+		var pnames []string
+		for pname := range outputs.Outputs {
+			if !sliceContains(pname, outputDefaults) {
+				pnames = append(pnames, pname)
+			}
+		}
+		sort.Strings(pnames)
+		printFilteredOutputs(pnames, true)
+	}
+
+	fmt.Printf(inputHeader)
+	if len(inputFilters) != 0 {
+		printFilteredInputs(inputFilters, false)
+	} else {
+		printFilteredInputs(inputDefaults, false)
+		// Print non-default inputs, commented
+		var pnames []string
+		for pname := range inputs.Inputs {
+			if !sliceContains(pname, inputDefaults) {
+				pnames = append(pnames, pname)
+			}
+		}
+		sort.Strings(pnames)
+		printFilteredInputs(pnames, true)
+	}
+}
+
+func printFilteredInputs(inputFilters []string, commented bool) {
+	// Filter inputs
+	var pnames []string
+	for pname := range inputs.Inputs {
+		if sliceContains(pname, inputFilters) {
+			pnames = append(pnames, pname)
+		}
+	}
+	sort.Strings(pnames)
+
+	// cache service inputs to print them at the end
+	servInputs := make(map[string]telegraf.ServiceInput)
+	// for alphabetical looping:
+	servInputNames := []string{}
+
+	// Print Inputs
+	for _, pname := range pnames {
+		creator := inputs.Inputs[pname]
+		input := creator()
+
+		switch p := input.(type) {
+		case telegraf.ServiceInput:
+			servInputs[pname] = p
+			servInputNames = append(servInputNames, pname)
+			continue
+		}
+
+		printConfig(pname, input, "inputs", commented)
+	}
+
+	// Print Service Inputs
+	if len(servInputs) == 0 {
+		return
+	}
+	sort.Strings(servInputNames)
+	fmt.Printf(serviceInputHeader)
+	for _, name := range servInputNames {
+		printConfig(name, servInputs[name], "inputs", commented)
+	}
+}
+
+func printFilteredOutputs(outputFilters []string, commented bool) {
 	// Filter outputs
 	var onames []string
 	for oname := range outputs.Outputs {
-		if len(outputFilters) == 0 || sliceContains(oname, outputFilters) {
+		if sliceContains(oname, outputFilters) {
 			onames = append(onames, oname)
 		}
 	}
@@ -220,38 +322,7 @@ func PrintSampleConfig(pluginFilters []string, outputFilters []string) {
 	for _, oname := range onames {
 		creator := outputs.Outputs[oname]
 		output := creator()
-		printConfig(oname, output, "outputs")
+		printConfig(oname, output, "outputs", commented)
-	}
-
-	// Filter inputs
-	var pnames []string
-	for pname := range inputs.Inputs {
-		if len(pluginFilters) == 0 || sliceContains(pname, pluginFilters) {
-			pnames = append(pnames, pname)
-		}
-	}
-	sort.Strings(pnames)
-
-	// Print Inputs
-	fmt.Printf(pluginHeader)
-	servInputs := make(map[string]telegraf.ServiceInput)
-	for _, pname := range pnames {
-		creator := inputs.Inputs[pname]
-		input := creator()
-
-		switch p := input.(type) {
-		case telegraf.ServiceInput:
-			servInputs[pname] = p
-			continue
-		}
-
-		printConfig(pname, input, "inputs")
-	}
-
-	// Print Service Inputs
-	fmt.Printf(serviceInputHeader)
-	for name, input := range servInputs {
-		printConfig(name, input, "inputs")
 	}
 }
 
@@ -260,13 +331,26 @@ type printer interface {
 	SampleConfig() string
 }
 
-func printConfig(name string, p printer, op string) {
+func printConfig(name string, p printer, op string, commented bool) {
-	fmt.Printf("\n# %s\n[[%s.%s]]", p.Description(), op, name)
+	comment := ""
+	if commented {
+		comment = "# "
+	}
+	fmt.Printf("\n%s# %s\n%s[[%s.%s]]", comment, p.Description(), comment,
+		op, name)
+
 	config := p.SampleConfig()
 	if config == "" {
-		fmt.Printf("\n  # no configuration\n")
+		fmt.Printf("\n%s  # no configuration\n\n", comment)
 	} else {
-		fmt.Printf(config)
+		lines := strings.Split(config, "\n")
+		for i, line := range lines {
+			if i == 0 || i == len(lines)-1 {
+				fmt.Print("\n")
+				continue
+			}
+			fmt.Print(comment + line + "\n")
+		}
 	}
 }
 
@@ -282,7 +366,7 @@ func sliceContains(name string, list []string) bool {
 // PrintInputConfig prints the config usage of a single input.
 func PrintInputConfig(name string) error {
 	if creator, ok := inputs.Inputs[name]; ok {
-		printConfig(name, creator(), "inputs")
+		printConfig(name, creator(), "inputs", false)
 	} else {
 		return errors.New(fmt.Sprintf("Input %s not found", name))
 	}
@@ -292,7 +376,7 @@ func PrintInputConfig(name string) error {
 // PrintOutputConfig prints the config usage of a single output.
 func PrintOutputConfig(name string) error {
 	if creator, ok := outputs.Outputs[name]; ok {
-		printConfig(name, creator(), "outputs")
+		printConfig(name, creator(), "outputs", false)
 	} else {
 		return errors.New(fmt.Sprintf("Output %s not found", name))
 	}
@@ -322,44 +406,44 @@ func (c *Config) LoadDirectory(path string) error {
 
 // LoadConfig loads the given config file and applies it to c
 func (c *Config) LoadConfig(path string) error {
-	tbl, err := config.ParseFile(path)
+	tbl, err := parseFile(path)
 	if err != nil {
-		return err
+		return fmt.Errorf("Error parsing %s, %s", path, err)
 	}
 
 	for name, val := range tbl.Fields {
 		subTable, ok := val.(*ast.Table)
 		if !ok {
-			return errors.New("invalid configuration")
+			return fmt.Errorf("%s: invalid configuration", path)
 		}
 
 		switch name {
 		case "agent":
 			if err = config.UnmarshalTable(subTable, c.Agent); err != nil {
 				log.Printf("Could not parse [agent] config\n")
-				return err
+				return fmt.Errorf("Error parsing %s, %s", path, err)
 			}
 		case "global_tags", "tags":
 			if err = config.UnmarshalTable(subTable, c.Tags); err != nil {
 				log.Printf("Could not parse [global_tags] config\n")
-				return err
+				return fmt.Errorf("Error parsing %s, %s", path, err)
 			}
 		case "outputs":
 			for pluginName, pluginVal := range subTable.Fields {
 				switch pluginSubTable := pluginVal.(type) {
 				case *ast.Table:
 					if err = c.addOutput(pluginName, pluginSubTable); err != nil {
-						return err
+						return fmt.Errorf("Error parsing %s, %s", path, err)
 					}
 				case []*ast.Table:
 					for _, t := range pluginSubTable {
 						if err = c.addOutput(pluginName, t); err != nil {
-							return err
+							return fmt.Errorf("Error parsing %s, %s", path, err)
 						}
 					}
 				default:
-					return fmt.Errorf("Unsupported config format: %s",
+					return fmt.Errorf("Unsupported config format: %s, file %s",
-						pluginName)
+						pluginName, path)
 				}
 			}
 		case "inputs", "plugins":
@@ -367,30 +451,50 @@ func (c *Config) LoadConfig(path string) error {
 				switch pluginSubTable := pluginVal.(type) {
 				case *ast.Table:
 					if err = c.addInput(pluginName, pluginSubTable); err != nil {
-						return err
+						return fmt.Errorf("Error parsing %s, %s", path, err)
 					}
 				case []*ast.Table:
 					for _, t := range pluginSubTable {
 						if err = c.addInput(pluginName, t); err != nil {
-							return err
+							return fmt.Errorf("Error parsing %s, %s", path, err)
 						}
 					}
 				default:
-					return fmt.Errorf("Unsupported config format: %s",
+					return fmt.Errorf("Unsupported config format: %s, file %s",
-						pluginName)
+						pluginName, path)
 				}
 			}
 		// Assume it's an input input for legacy config file support if no other
 		// identifiers are present
 		default:
 			if err = c.addInput(name, subTable); err != nil {
-				return err
+				return fmt.Errorf("Error parsing %s, %s", path, err)
 			}
 		}
 	}
 	return nil
 }
 
+// parseFile loads a TOML configuration from a provided path and
+// returns the AST produced from the TOML parser. When loading the file, it
+// will find environment variables and replace them.
+func parseFile(fpath string) (*ast.Table, error) {
+	contents, err := ioutil.ReadFile(fpath)
+	if err != nil {
+		return nil, err
+	}
+
+	env_vars := envVarRe.FindAll(contents, -1)
+	for _, env_var := range env_vars {
+		env_val := os.Getenv(strings.TrimPrefix(string(env_var), "$"))
+		if env_val != "" {
+			contents = bytes.Replace(contents, env_var, []byte(env_val), 1)
+		}
+	}
+
+	return toml.Parse(contents)
+}
+
 func (c *Config) addOutput(name string, table *ast.Table) error {
 	if len(c.OutputFilters) > 0 && !sliceContains(name, c.OutputFilters) {
 		return nil
@@ -701,12 +805,21 @@ func buildParser(name string, tbl *ast.Table) (parsers.Parser, error) {
 		}
 	}
 
+	if node, ok := tbl.Fields["data_type"]; ok {
+		if kv, ok := node.(*ast.KeyValue); ok {
+			if str, ok := kv.Value.(*ast.String); ok {
+				c.DataType = str.Value
+			}
+		}
+	}
+
 	c.MetricName = name
 
 	delete(tbl.Fields, "data_format")
 	delete(tbl.Fields, "separator")
 	delete(tbl.Fields, "templates")
 	delete(tbl.Fields, "tag_keys")
+	delete(tbl.Fields, "data_type")
 
 	return parsers.NewParser(c)
 }

internal/config/config_test.go

@@ -1,6 +1,7 @@
 package config
 
 import (
+	"os"
 	"testing"
 	"time"
 
@@ -10,9 +11,52 @@ import (
 	"github.com/influxdata/telegraf/plugins/inputs/memcached"
 	"github.com/influxdata/telegraf/plugins/inputs/procstat"
 	"github.com/influxdata/telegraf/plugins/parsers"
+
 	"github.com/stretchr/testify/assert"
 )
 
+func TestConfig_LoadSingleInputWithEnvVars(t *testing.T) {
+	c := NewConfig()
+	err := os.Setenv("MY_TEST_SERVER", "192.168.1.1")
+	assert.NoError(t, err)
+	err = os.Setenv("TEST_INTERVAL", "10s")
+	assert.NoError(t, err)
+	c.LoadConfig("./testdata/single_plugin_env_vars.toml")
+
+	memcached := inputs.Inputs["memcached"]().(*memcached.Memcached)
+	memcached.Servers = []string{"192.168.1.1"}
+
+	mConfig := &internal_models.InputConfig{
+		Name: "memcached",
+		Filter: internal_models.Filter{
+			NameDrop:  []string{"metricname2"},
+			NamePass:  []string{"metricname1"},
+			FieldDrop: []string{"other", "stuff"},
+			FieldPass: []string{"some", "strings"},
+			TagDrop: []internal_models.TagFilter{
+				internal_models.TagFilter{
+					Name:   "badtag",
+					Filter: []string{"othertag"},
+				},
+			},
+			TagPass: []internal_models.TagFilter{
+				internal_models.TagFilter{
+					Name:   "goodtag",
+					Filter: []string{"mytag"},
+				},
+			},
+			IsActive: true,
+		},
+		Interval: 10 * time.Second,
+	}
+	mConfig.Tags = make(map[string]string)
+
+	assert.Equal(t, memcached, c.Inputs[0].Input,
+		"Testdata did not produce a correct memcached struct.")
+	assert.Equal(t, mConfig, c.Inputs[0].Config,
+		"Testdata did not produce correct memcached metadata.")
+}
+
 func TestConfig_LoadSingleInput(t *testing.T) {
 	c := NewConfig()
 	c.LoadConfig("./testdata/single_plugin.toml")

internal/config/testdata/single_plugin_env_vars.toml

@@ -0,0 +1,11 @@
+[[inputs.memcached]]
+  servers = ["$MY_TEST_SERVER"]
+  namepass = ["metricname1"]
+  namedrop = ["metricname2"]
+  fieldpass = ["some", "strings"]
+  fielddrop = ["other", "stuff"]
+  interval = "$TEST_INTERVAL"
+  [inputs.memcached.tagpass]
+    goodtag = ["mytag"]
+  [inputs.memcached.tagdrop]
+    badtag = ["othertag"]

internal/internal.go

@@ -11,6 +11,7 @@ import (
 	"os"
 	"strings"
 	"time"
+	"unicode"
 )
 
 const alphanum string = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
@@ -86,15 +87,15 @@ func GetTLSConfig(
 	SSLCert, SSLKey, SSLCA string,
 	InsecureSkipVerify bool,
 ) (*tls.Config, error) {
-	t := &tls.Config{}
+	if SSLCert == "" && SSLKey == "" && SSLCA == "" && !InsecureSkipVerify {
-	if SSLCert != "" && SSLKey != "" && SSLCA != "" {
+		return nil, nil
-		cert, err := tls.LoadX509KeyPair(SSLCert, SSLKey)
+	}
-		if err != nil {
-			return nil, errors.New(fmt.Sprintf(
-				"Could not load TLS client key/certificate: %s",
-				err))
-		}
 
+	t := &tls.Config{
+		InsecureSkipVerify: InsecureSkipVerify,
+	}
+
+	if SSLCA != "" {
 		caCert, err := ioutil.ReadFile(SSLCA)
 		if err != nil {
 			return nil, errors.New(fmt.Sprintf("Could not load TLS CA: %s",
@@ -103,23 +104,42 @@ func GetTLSConfig(
 
 		caCertPool := x509.NewCertPool()
 		caCertPool.AppendCertsFromPEM(caCert)
-
+		t.RootCAs = caCertPool
-		t = &tls.Config{
-			Certificates:       []tls.Certificate{cert},
-			RootCAs:            caCertPool,
-			InsecureSkipVerify: InsecureSkipVerify,
-		}
-	} else {
-		if InsecureSkipVerify {
-			t.InsecureSkipVerify = true
-		} else {
-			return nil, nil
-		}
 	}
+
+	if SSLCert != "" && SSLKey != "" {
+		cert, err := tls.LoadX509KeyPair(SSLCert, SSLKey)
+		if err != nil {
+			return nil, errors.New(fmt.Sprintf(
+				"Could not load TLS client key/certificate: %s",
+				err))
+		}
+
+		t.Certificates = []tls.Certificate{cert}
+		t.BuildNameToCertificate()
+	}
+
 	// will be nil by default if nothing is provided
 	return t, nil
 }
 
+// SnakeCase converts the given string to snake case following the Golang format:
+// acronyms are converted to lower-case and preceded by an underscore.
+func SnakeCase(in string) string {
+	runes := []rune(in)
+	length := len(runes)
+
+	var out []rune
+	for i := 0; i < length; i++ {
+		if i > 0 && unicode.IsUpper(runes[i]) && ((i+1 < length && unicode.IsLower(runes[i+1])) || unicode.IsLower(runes[i-1])) {
+			out = append(out, '_')
+		}
+		out = append(out, unicode.ToLower(runes[i]))
+	}
+
+	return string(out)
+}
+
 // Glob will test a string pattern, potentially containing globs, against a
 // subject string. The result is a simple true/false, determining whether or
 // not the glob pattern matched the subject text.

internal/internal_test.go

@@ -42,3 +42,32 @@ func TestGlob(t *testing.T) {
 		testGlobNoMatch(t, pattern, "this_is_a_test")
 	}
 }
+
+type SnakeTest struct {
+	input  string
+	output string
+}
+
+var tests = []SnakeTest{
+	{"a", "a"},
+	{"snake", "snake"},
+	{"A", "a"},
+	{"ID", "id"},
+	{"MOTD", "motd"},
+	{"Snake", "snake"},
+	{"SnakeTest", "snake_test"},
+	{"APIResponse", "api_response"},
+	{"SnakeID", "snake_id"},
+	{"SnakeIDGoogle", "snake_id_google"},
+	{"LinuxMOTD", "linux_motd"},
+	{"OMGWTFBBQ", "omgwtfbbq"},
+	{"omg_wtf_bbq", "omg_wtf_bbq"},
+}
+
+func TestSnakeCase(t *testing.T) {
+	for _, test := range tests {
+		if SnakeCase(test.input) != test.output {
+			t.Errorf(`SnakeCase("%s"), wanted "%s", got \%s"`, test.input, test.output, SnakeCase(test.input))
+		}
+	}
+}

internal/models/running_output.go

@@ -10,7 +10,7 @@ import (
 
 const (
 	// Default number of metrics kept between flushes.
-	DEFAULT_METRIC_BUFFER_LIMIT = 10000
+	DEFAULT_METRIC_BUFFER_LIMIT = 1000
 
 	// Limit how many full metric buffers are kept due to failed writes.
 	FULL_METRIC_BUFFERS_LIMIT = 100
@@ -82,9 +82,11 @@ func (ro *RunningOutput) AddMetric(metric telegraf.Metric) {
 				}
 			}
 		} else {
-			log.Printf("WARNING: overwriting cached metrics, you may want to " +
+			if ro.overwriteI == 0 {
-				"increase the metric_buffer_limit setting in your [agent] " +
+				log.Printf("WARNING: overwriting cached metrics, you may want to " +
-				"config if you do not wish to overwrite metrics.\n")
+					"increase the metric_buffer_limit setting in your [agent] " +
+					"config if you do not wish to overwrite metrics.\n")
+			}
 			if ro.overwriteI == len(ro.metrics) {
 				ro.overwriteI = 0
 			}
@@ -119,6 +121,9 @@ func (ro *RunningOutput) Write() error {
 }
 
 func (ro *RunningOutput) write(metrics []telegraf.Metric) error {
+	if len(metrics) == 0 {
+		return nil
+	}
 	start := time.Now()
 	err := ro.Output.Write(metrics)
 	elapsed := time.Since(start)

plugins/inputs/EXAMPLE_README.md

@@ -30,8 +30,6 @@ The example plugin gathers metrics about example things
 
 ### Example Output:
 
-Give an example `-test` output here
-
 ```
 $ ./telegraf -config telegraf.conf -input-filter example -test
 measurement1,tag1=foo,tag2=bar field1=1i,field2=2.1 1453831884664956455

plugins/inputs/all/all.go

@@ -4,6 +4,8 @@ import (
 	_ "github.com/influxdata/telegraf/plugins/inputs/aerospike"
 	_ "github.com/influxdata/telegraf/plugins/inputs/apache"
 	_ "github.com/influxdata/telegraf/plugins/inputs/bcache"
+	_ "github.com/influxdata/telegraf/plugins/inputs/cloudwatch"
+	_ "github.com/influxdata/telegraf/plugins/inputs/couchbase"
 	_ "github.com/influxdata/telegraf/plugins/inputs/couchdb"
 	_ "github.com/influxdata/telegraf/plugins/inputs/disque"
 	_ "github.com/influxdata/telegraf/plugins/inputs/dns_query"
@@ -15,6 +17,7 @@ import (
 	_ "github.com/influxdata/telegraf/plugins/inputs/haproxy"
 	_ "github.com/influxdata/telegraf/plugins/inputs/httpjson"
 	_ "github.com/influxdata/telegraf/plugins/inputs/influxdb"
+	_ "github.com/influxdata/telegraf/plugins/inputs/ipmi_sensor"
 	_ "github.com/influxdata/telegraf/plugins/inputs/jolokia"
 	_ "github.com/influxdata/telegraf/plugins/inputs/kafka_consumer"
 	_ "github.com/influxdata/telegraf/plugins/inputs/leofs"
@@ -29,10 +32,12 @@ import (
 	_ "github.com/influxdata/telegraf/plugins/inputs/net_response"
 	_ "github.com/influxdata/telegraf/plugins/inputs/nginx"
 	_ "github.com/influxdata/telegraf/plugins/inputs/nsq"
+	_ "github.com/influxdata/telegraf/plugins/inputs/ntpq"
 	_ "github.com/influxdata/telegraf/plugins/inputs/passenger"
 	_ "github.com/influxdata/telegraf/plugins/inputs/phpfpm"
 	_ "github.com/influxdata/telegraf/plugins/inputs/ping"
 	_ "github.com/influxdata/telegraf/plugins/inputs/postgresql"
+	_ "github.com/influxdata/telegraf/plugins/inputs/postgresql_extensible"
 	_ "github.com/influxdata/telegraf/plugins/inputs/powerdns"
 	_ "github.com/influxdata/telegraf/plugins/inputs/procstat"
 	_ "github.com/influxdata/telegraf/plugins/inputs/prometheus"
@@ -47,8 +52,10 @@ import (
 	_ "github.com/influxdata/telegraf/plugins/inputs/sqlserver"
 	_ "github.com/influxdata/telegraf/plugins/inputs/statsd"
 	_ "github.com/influxdata/telegraf/plugins/inputs/system"
+	_ "github.com/influxdata/telegraf/plugins/inputs/tcp_listener"
 	_ "github.com/influxdata/telegraf/plugins/inputs/trig"
 	_ "github.com/influxdata/telegraf/plugins/inputs/twemproxy"
+	_ "github.com/influxdata/telegraf/plugins/inputs/udp_listener"
 	_ "github.com/influxdata/telegraf/plugins/inputs/win_perf_counters"
 	_ "github.com/influxdata/telegraf/plugins/inputs/zfs"
 	_ "github.com/influxdata/telegraf/plugins/inputs/zookeeper"

plugins/inputs/apache/apache.go

@@ -58,7 +58,10 @@ var tr = &http.Transport{
 	ResponseHeaderTimeout: time.Duration(3 * time.Second),
 }
 
-var client = &http.Client{Transport: tr}
+var client = &http.Client{
+	Transport: tr,
+	Timeout:   time.Duration(4 * time.Second),
+}
 
 func (n *Apache) gatherUrl(addr *url.URL, acc telegraf.Accumulator) error {
 	resp, err := client.Get(addr.String())

plugins/inputs/cloudwatch/README.md

@@ -0,0 +1,86 @@
+# Amazon CloudWatch Statistics Input
+
+This plugin will pull Metric Statistics from Amazon CloudWatch.
+
+### Amazon Authentication
+
+This plugin uses a credential chain for Authentication with the CloudWatch
+API endpoint. In the following order the plugin will attempt to authenticate.
+1. [IAMS Role](http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/iam-roles-for-amazon-ec2.html)
+2. [Environment Variables](https://github.com/aws/aws-sdk-go/wiki/configuring-sdk#environment-variables)
+3. [Shared Credentials](https://github.com/aws/aws-sdk-go/wiki/configuring-sdk#shared-credentials-file)
+
+### Configuration:
+
+```toml
+[[inputs.cloudwatch]]
+  ## Amazon Region (required)
+  region = 'us-east-1'
+
+  ## Requested CloudWatch aggregation Period (required - must be a multiple of 60s)
+  period = '1m'
+
+  ## Collection Delay (required - must account for metrics availability via CloudWatch API)
+  delay = '1m'
+
+  ## Override global run interval (optional - defaults to global interval)
+  ## Recomended: use metric 'interval' that is a multiple of 'period' to avoid 
+  ## gaps or overlap in pulled data
+  interval = '1m'
+
+  ## Metric Statistic Namespace (required)
+  namespace = 'AWS/ELB'
+
+  ## Metrics to Pull (optional)
+  ## Defaults to all Metrics in Namespace if nothing is provided
+  ## Refreshes Namespace available metrics every 1h
+  [[inputs.cloudwatch.metrics]]
+    names = ['Latency', 'RequestCount']
+	
+    ## Dimension filters for Metric (optional)
+    [[inputs.cloudwatch.metrics.dimensions]]
+      name = 'LoadBalancerName'
+      value = 'p-example'
+```
+#### Requirements and Terminology
+
+Plugin Configuration utilizes [CloudWatch concepts](http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/cloudwatch_concepts.html) and access pattern to allow monitoring of any CloudWatch Metric.
+
+- `region` must be a valid AWS [Region](http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/cloudwatch_concepts.html#CloudWatchRegions) value
+- `period` must be a valid CloudWatch [Period](http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/cloudwatch_concepts.html#CloudWatchPeriods) value
+- `namespace` must be a valid CloudWatch [Namespace](http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/cloudwatch_concepts.html#Namespace) value
+- `names` must be valid CloudWatch [Metric](http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/cloudwatch_concepts.html#Metric) names
+- `dimensions` must be valid CloudWatch [Dimension](http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/cloudwatch_concepts.html#Dimension) name/value pairs
+
+#### Restrictions and Limitations
+- CloudWatch metrics are not available instantly via the CloudWatch API. You should adjust your collection `delay` to account for this lag in metrics availability based on your [monitoring subscription level](http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-cloudwatch-new.html)
+- CloudWatch API usage incurs cost - see [GetMetricStatistics Pricing](https://aws.amazon.com/cloudwatch/pricing/)
+
+### Measurements & Fields:
+
+Each CloudWatch Namespace monitored records a measurement with fields for each available Metric Statistic
+Namespace and Metrics are represented in [snake case](https://en.wikipedia.org/wiki/Snake_case)
+
+- cloudwatch_{namespace}
+  - {metric}_sum         (metric Sum value)
+  - {metric}_average     (metric Average value)
+  - {metric}_minimum     (metric Minimum value)
+  - {metric}_maximum     (metric Maximum value)
+  - {metric}_sample_count (metric SampleCount value)
+
+
+### Tags:
+Each measurement is tagged with the following identifiers to uniquely identify the associated metric
+Tag Dimension names are represented in [snake case](https://en.wikipedia.org/wiki/Snake_case)
+
+- All measurements have the following tags:
+  - region           (CloudWatch Region)
+  - unit             (CloudWatch Metric Unit)
+  - {dimension-name} (Cloudwatch Dimension value - one for each metric dimension)
+
+### Example Output:
+
+```
+$ ./telegraf -config telegraf.conf -input-filter cloudwatch -test
+> cloudwatch_aws_elb,load_balancer_name=p-example,region=us-east-1,unit=seconds latency_average=0.004810798017284538,latency_maximum=0.1100282669067383,latency_minimum=0.0006084442138671875,latency_sample_count=4029,latency_sum=19.382705211639404 1459542420000000000
+```

plugins/inputs/cloudwatch/cloudwatch.go

@@ -0,0 +1,305 @@
+package cloudwatch
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds"
+	"github.com/aws/aws-sdk-go/aws/ec2metadata"
+	"github.com/aws/aws-sdk-go/aws/session"
+
+	"github.com/aws/aws-sdk-go/service/cloudwatch"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/internal"
+	"github.com/influxdata/telegraf/plugins/inputs"
+)
+
+type (
+	CloudWatch struct {
+		Region      string            `toml:"region"`
+		Period      internal.Duration `toml:"period"`
+		Delay       internal.Duration `toml:"delay"`
+		Namespace   string            `toml:"namespace"`
+		Metrics     []*Metric         `toml:"metrics"`
+		client      cloudwatchClient
+		metricCache *MetricCache
+	}
+
+	Metric struct {
+		MetricNames []string     `toml:"names"`
+		Dimensions  []*Dimension `toml:"dimensions"`
+	}
+
+	Dimension struct {
+		Name  string `toml:"name"`
+		Value string `toml:"value"`
+	}
+
+	MetricCache struct {
+		TTL     time.Duration
+		Fetched time.Time
+		Metrics []*cloudwatch.Metric
+	}
+
+	cloudwatchClient interface {
+		ListMetrics(*cloudwatch.ListMetricsInput) (*cloudwatch.ListMetricsOutput, error)
+		GetMetricStatistics(*cloudwatch.GetMetricStatisticsInput) (*cloudwatch.GetMetricStatisticsOutput, error)
+	}
+)
+
+func (c *CloudWatch) SampleConfig() string {
+	return `
+  ## Amazon Region
+  region = 'us-east-1'
+
+  ## Requested CloudWatch aggregation Period (required - must be a multiple of 60s)
+  period = '1m'
+
+  ## Collection Delay (required - must account for metrics availability via CloudWatch API)
+  delay = '1m'
+
+  ## Recomended: use metric 'interval' that is a multiple of 'period' to avoid 
+  ## gaps or overlap in pulled data
+  interval = '1m'
+
+  ## Metric Statistic Namespace (required)
+  namespace = 'AWS/ELB'
+
+  ## Metrics to Pull (optional)
+  ## Defaults to all Metrics in Namespace if nothing is provided
+  ## Refreshes Namespace available metrics every 1h
+  #[[inputs.cloudwatch.metrics]]
+  #  names = ['Latency', 'RequestCount']
+  #	
+  #  ## Dimension filters for Metric (optional)
+  #  [[inputs.cloudwatch.metrics.dimensions]]
+  #    name = 'LoadBalancerName'
+  #    value = 'p-example'
+`
+}
+
+func (c *CloudWatch) Description() string {
+	return "Pull Metric Statistics from Amazon CloudWatch"
+}
+
+func (c *CloudWatch) Gather(acc telegraf.Accumulator) error {
+	if c.client == nil {
+		c.initializeCloudWatch()
+	}
+
+	var metrics []*cloudwatch.Metric
+
+	// check for provided metric filter
+	if c.Metrics != nil {
+		metrics = []*cloudwatch.Metric{}
+		for _, m := range c.Metrics {
+			dimensions := make([]*cloudwatch.Dimension, len(m.Dimensions))
+			for k, d := range m.Dimensions {
+				dimensions[k] = &cloudwatch.Dimension{
+					Name:  aws.String(d.Name),
+					Value: aws.String(d.Value),
+				}
+			}
+			for _, name := range m.MetricNames {
+				metrics = append(metrics, &cloudwatch.Metric{
+					Namespace:  aws.String(c.Namespace),
+					MetricName: aws.String(name),
+					Dimensions: dimensions,
+				})
+			}
+		}
+	} else {
+		var err error
+		metrics, err = c.fetchNamespaceMetrics()
+		if err != nil {
+			return err
+		}
+	}
+
+	metricCount := len(metrics)
+	var errChan = make(chan error, metricCount)
+
+	now := time.Now()
+
+	// limit concurrency or we can easily exhaust user connection limit
+	semaphore := make(chan byte, 64)
+
+	for _, m := range metrics {
+		semaphore <- 0x1
+		go c.gatherMetric(acc, m, now, semaphore, errChan)
+	}
+
+	for i := 1; i <= metricCount; i++ {
+		err := <-errChan
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func init() {
+	inputs.Add("cloudwatch", func() telegraf.Input {
+		return &CloudWatch{}
+	})
+}
+
+/*
+ * Initialize CloudWatch client
+ */
+func (c *CloudWatch) initializeCloudWatch() error {
+	config := &aws.Config{
+		Region: aws.String(c.Region),
+		Credentials: credentials.NewChainCredentials(
+			[]credentials.Provider{
+				&ec2rolecreds.EC2RoleProvider{Client: ec2metadata.New(session.New())},
+				&credentials.EnvProvider{},
+				&credentials.SharedCredentialsProvider{},
+			}),
+	}
+
+	c.client = cloudwatch.New(session.New(config))
+	return nil
+}
+
+/*
+ * Fetch available metrics for given CloudWatch Namespace
+ */
+func (c *CloudWatch) fetchNamespaceMetrics() (metrics []*cloudwatch.Metric, err error) {
+	if c.metricCache != nil && c.metricCache.IsValid() {
+		metrics = c.metricCache.Metrics
+		return
+	}
+
+	metrics = []*cloudwatch.Metric{}
+
+	var token *string
+	for more := true; more; {
+		params := &cloudwatch.ListMetricsInput{
+			Namespace:  aws.String(c.Namespace),
+			Dimensions: []*cloudwatch.DimensionFilter{},
+			NextToken:  token,
+			MetricName: nil,
+		}
+
+		resp, err := c.client.ListMetrics(params)
+		if err != nil {
+			return nil, err
+		}
+
+		metrics = append(metrics, resp.Metrics...)
+
+		token = resp.NextToken
+		more = token != nil
+	}
+
+	cacheTTL, _ := time.ParseDuration("1hr")
+	c.metricCache = &MetricCache{
+		Metrics: metrics,
+		Fetched: time.Now(),
+		TTL:     cacheTTL,
+	}
+
+	return
+}
+
+/*
+ * Gather given Metric and emit any error
+ */
+func (c *CloudWatch) gatherMetric(acc telegraf.Accumulator, metric *cloudwatch.Metric, now time.Time, semaphore chan byte, errChan chan error) {
+	params := c.getStatisticsInput(metric, now)
+	resp, err := c.client.GetMetricStatistics(params)
+	if err != nil {
+		errChan <- err
+		<-semaphore
+		return
+	}
+
+	for _, point := range resp.Datapoints {
+		tags := map[string]string{
+			"region": c.Region,
+			"unit":   snakeCase(*point.Unit),
+		}
+
+		for _, d := range metric.Dimensions {
+			tags[snakeCase(*d.Name)] = *d.Value
+		}
+
+		// record field for each statistic
+		fields := map[string]interface{}{}
+
+		if point.Average != nil {
+			fields[formatField(*metric.MetricName, cloudwatch.StatisticAverage)] = *point.Average
+		}
+		if point.Maximum != nil {
+			fields[formatField(*metric.MetricName, cloudwatch.StatisticMaximum)] = *point.Maximum
+		}
+		if point.Minimum != nil {
+			fields[formatField(*metric.MetricName, cloudwatch.StatisticMinimum)] = *point.Minimum
+		}
+		if point.SampleCount != nil {
+			fields[formatField(*metric.MetricName, cloudwatch.StatisticSampleCount)] = *point.SampleCount
+		}
+		if point.Sum != nil {
+			fields[formatField(*metric.MetricName, cloudwatch.StatisticSum)] = *point.Sum
+		}
+
+		acc.AddFields(formatMeasurement(c.Namespace), fields, tags, *point.Timestamp)
+	}
+
+	errChan <- nil
+	<-semaphore
+}
+
+/*
+ * Formatting helpers
+ */
+func formatField(metricName string, statistic string) string {
+	return fmt.Sprintf("%s_%s", snakeCase(metricName), snakeCase(statistic))
+}
+
+func formatMeasurement(namespace string) string {
+	namespace = strings.Replace(namespace, "/", "_", -1)
+	namespace = snakeCase(namespace)
+	return fmt.Sprintf("cloudwatch_%s", namespace)
+}
+
+func snakeCase(s string) string {
+	s = internal.SnakeCase(s)
+	s = strings.Replace(s, "__", "_", -1)
+	return s
+}
+
+/*
+ * Map Metric to *cloudwatch.GetMetricStatisticsInput for given timeframe
+ */
+func (c *CloudWatch) getStatisticsInput(metric *cloudwatch.Metric, now time.Time) *cloudwatch.GetMetricStatisticsInput {
+	end := now.Add(-c.Delay.Duration)
+
+	input := &cloudwatch.GetMetricStatisticsInput{
+		StartTime:  aws.Time(end.Add(-c.Period.Duration)),
+		EndTime:    aws.Time(end),
+		MetricName: metric.MetricName,
+		Namespace:  metric.Namespace,
+		Period:     aws.Int64(int64(c.Period.Duration.Seconds())),
+		Dimensions: metric.Dimensions,
+		Statistics: []*string{
+			aws.String(cloudwatch.StatisticAverage),
+			aws.String(cloudwatch.StatisticMaximum),
+			aws.String(cloudwatch.StatisticMinimum),
+			aws.String(cloudwatch.StatisticSum),
+			aws.String(cloudwatch.StatisticSampleCount)},
+	}
+	return input
+}
+
+/*
+ * Check Metric Cache validity
+ */
+func (c *MetricCache) IsValid() bool {
+	return c.Metrics != nil && time.Since(c.Fetched) < c.TTL
+}

plugins/inputs/cloudwatch/cloudwatch_test.go

@@ -0,0 +1,131 @@
+package cloudwatch
+
+import (
+	"testing"
+	"time"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/cloudwatch"
+	"github.com/influxdata/telegraf/internal"
+	"github.com/influxdata/telegraf/testutil"
+	"github.com/stretchr/testify/assert"
+)
+
+type mockCloudWatchClient struct{}
+
+func (m *mockCloudWatchClient) ListMetrics(params *cloudwatch.ListMetricsInput) (*cloudwatch.ListMetricsOutput, error) {
+	metric := &cloudwatch.Metric{
+		Namespace:  params.Namespace,
+		MetricName: aws.String("Latency"),
+		Dimensions: []*cloudwatch.Dimension{
+			&cloudwatch.Dimension{
+				Name:  aws.String("LoadBalancerName"),
+				Value: aws.String("p-example"),
+			},
+		},
+	}
+
+	result := &cloudwatch.ListMetricsOutput{
+		Metrics: []*cloudwatch.Metric{metric},
+	}
+	return result, nil
+}
+
+func (m *mockCloudWatchClient) GetMetricStatistics(params *cloudwatch.GetMetricStatisticsInput) (*cloudwatch.GetMetricStatisticsOutput, error) {
+	dataPoint := &cloudwatch.Datapoint{
+		Timestamp:   params.EndTime,
+		Minimum:     aws.Float64(0.1),
+		Maximum:     aws.Float64(0.3),
+		Average:     aws.Float64(0.2),
+		Sum:         aws.Float64(123),
+		SampleCount: aws.Float64(100),
+		Unit:        aws.String("Seconds"),
+	}
+	result := &cloudwatch.GetMetricStatisticsOutput{
+		Label:      aws.String("Latency"),
+		Datapoints: []*cloudwatch.Datapoint{dataPoint},
+	}
+	return result, nil
+}
+
+func TestGather(t *testing.T) {
+	duration, _ := time.ParseDuration("1m")
+	internalDuration := internal.Duration{
+		Duration: duration,
+	}
+	c := &CloudWatch{
+		Region:    "us-east-1",
+		Namespace: "AWS/ELB",
+		Delay:     internalDuration,
+		Period:    internalDuration,
+	}
+
+	var acc testutil.Accumulator
+	c.client = &mockCloudWatchClient{}
+
+	c.Gather(&acc)
+
+	fields := map[string]interface{}{}
+	fields["latency_minimum"] = 0.1
+	fields["latency_maximum"] = 0.3
+	fields["latency_average"] = 0.2
+	fields["latency_sum"] = 123.0
+	fields["latency_sample_count"] = 100.0
+
+	tags := map[string]string{}
+	tags["unit"] = "seconds"
+	tags["region"] = "us-east-1"
+	tags["load_balancer_name"] = "p-example"
+
+	assert.True(t, acc.HasMeasurement("cloudwatch_aws_elb"))
+	acc.AssertContainsTaggedFields(t, "cloudwatch_aws_elb", fields, tags)
+
+}
+
+func TestGenerateStatisticsInputParams(t *testing.T) {
+	d := &cloudwatch.Dimension{
+		Name:  aws.String("LoadBalancerName"),
+		Value: aws.String("p-example"),
+	}
+
+	m := &cloudwatch.Metric{
+		MetricName: aws.String("Latency"),
+		Dimensions: []*cloudwatch.Dimension{d},
+	}
+
+	duration, _ := time.ParseDuration("1m")
+	internalDuration := internal.Duration{
+		Duration: duration,
+	}
+
+	c := &CloudWatch{
+		Namespace: "AWS/ELB",
+		Delay:     internalDuration,
+		Period:    internalDuration,
+	}
+
+	c.initializeCloudWatch()
+
+	now := time.Now()
+
+	params := c.getStatisticsInput(m, now)
+
+	assert.EqualValues(t, *params.EndTime, now.Add(-c.Delay.Duration))
+	assert.EqualValues(t, *params.StartTime, now.Add(-c.Period.Duration).Add(-c.Delay.Duration))
+	assert.Len(t, params.Dimensions, 1)
+	assert.Len(t, params.Statistics, 5)
+	assert.EqualValues(t, *params.Period, 60)
+}
+
+func TestMetricsCacheTimeout(t *testing.T) {
+	ttl, _ := time.ParseDuration("5ms")
+	cache := &MetricCache{
+		Metrics: []*cloudwatch.Metric{},
+		Fetched: time.Now(),
+		TTL:     ttl,
+	}
+
+	assert.True(t, cache.IsValid())
+	time.Sleep(ttl)
+	assert.False(t, cache.IsValid())
+}

plugins/inputs/couchbase/README.md

@@ -0,0 +1,63 @@
+# Telegraf Plugin: Couchbase
+
+## Configuration:
+
+```
+# Read per-node and per-bucket metrics from Couchbase
+[[inputs.couchbase]]
+  ## specify servers via a url matching:
+  ##  [protocol://][:password]@address[:port]
+  ##  e.g.
+  ##    http://couchbase-0.example.com/
+  ##    http://admin:secret@couchbase-0.example.com:8091/
+  ##
+  ## If no servers are specified, then localhost is used as the host.
+  ## If no protocol is specifed, HTTP is used.
+  ## If no port is specified, 8091 is used.
+  servers = ["http://localhost:8091"]
+```
+
+## Measurements:
+
+### couchbase_node
+
+Tags:
+- cluster: whatever you called it in `servers` in the configuration, e.g.: `http://couchbase-0.example.com/`
+- hostname: Couchbase's name for the node and port, e.g., `172.16.10.187:8091`
+
+Fields:
+- memory_free (unit: bytes, example: 23181365248.0)
+- memory_total (unit: bytes, example: 64424656896.0)
+
+### couchbase_bucket
+
+Tags:
+- cluster: whatever you called it in `servers` in the configuration, e.g.: `http://couchbase-0.example.com/`)
+- bucket: the name of the couchbase bucket, e.g., `blastro-df`
+
+Fields:
+- quota_percent_used (unit: percent, example: 68.85424936294555)
+- ops_per_sec (unit: count, example: 5686.789686789687)
+- disk_fetches (unit: count, example: 0.0)
+- item_count (unit: count, example: 943239752.0)
+- disk_used (unit: bytes, example: 409178772321.0)
+- data_used (unit: bytes, example: 212179309111.0)
+- mem_used (unit: bytes, example: 202156957464.0)
+
+
+## Example output
+
+```
+$ telegraf -config telegraf.conf -input-filter couchbase -test
+* Plugin: couchbase, Collection 1
+> couchbase_node,cluster=https://couchbase-0.example.com/,hostname=172.16.10.187:8091 memory_free=22927384576,memory_total=64424656896 1458381183695864929
+> couchbase_node,cluster=https://couchbase-0.example.com/,hostname=172.16.10.65:8091 memory_free=23520161792,memory_total=64424656896 1458381183695972112
+> couchbase_node,cluster=https://couchbase-0.example.com/,hostname=172.16.13.105:8091 memory_free=23531704320,memory_total=64424656896 1458381183695995259
+> couchbase_node,cluster=https://couchbase-0.example.com/,hostname=172.16.13.173:8091 memory_free=23628767232,memory_total=64424656896 1458381183696010870
+> couchbase_node,cluster=https://couchbase-0.example.com/,hostname=172.16.15.120:8091 memory_free=23616692224,memory_total=64424656896 1458381183696027406
+> couchbase_node,cluster=https://couchbase-0.example.com/,hostname=172.16.8.127:8091 memory_free=23431770112,memory_total=64424656896 1458381183696041040
+> couchbase_node,cluster=https://couchbase-0.example.com/,hostname=172.16.8.148:8091 memory_free=23811371008,memory_total=64424656896 1458381183696059060
+> couchbase_bucket,bucket=default,cluster=https://couchbase-0.example.com/ data_used=25743360,disk_fetches=0,disk_used=31744886,item_count=0,mem_used=77729224,ops_per_sec=0,quota_percent_used=10.58976636614118 1458381183696210074
+> couchbase_bucket,bucket=demoncat,cluster=https://couchbase-0.example.com/ data_used=38157584951,disk_fetches=0,disk_used=62730302441,item_count=14662532,mem_used=24015304256,ops_per_sec=1207.753207753208,quota_percent_used=79.87855353525707 1458381183696242695
+> couchbase_bucket,bucket=blastro-df,cluster=https://couchbase-0.example.com/ data_used=212552491622,disk_fetches=0,disk_used=413323157621,item_count=944655680,mem_used=202421103760,ops_per_sec=1692.176692176692,quota_percent_used=68.9442170551845 1458381183696272206
+```

plugins/inputs/couchbase/couchbase.go

@@ -0,0 +1,104 @@
+package couchbase
+
+import (
+	couchbase "github.com/couchbase/go-couchbase"
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/inputs"
+	"sync"
+)
+
+type Couchbase struct {
+	Servers []string
+}
+
+var sampleConfig = `
+  ## specify servers via a url matching:
+  ##  [protocol://][:password]@address[:port]
+  ##  e.g.
+  ##    http://couchbase-0.example.com/
+  ##    http://admin:secret@couchbase-0.example.com:8091/
+  ##
+  ## If no servers are specified, then localhost is used as the host.
+  ## If no protocol is specifed, HTTP is used.
+  ## If no port is specified, 8091 is used.
+  servers = ["http://localhost:8091"]
+`
+
+func (r *Couchbase) SampleConfig() string {
+	return sampleConfig
+}
+
+func (r *Couchbase) Description() string {
+	return "Read metrics from one or many couchbase clusters"
+}
+
+// Reads stats from all configured clusters. Accumulates stats.
+// Returns one of the errors encountered while gathering stats (if any).
+func (r *Couchbase) Gather(acc telegraf.Accumulator) error {
+	if len(r.Servers) == 0 {
+		r.gatherServer("http://localhost:8091/", acc, nil)
+		return nil
+	}
+
+	var wg sync.WaitGroup
+
+	var outerr error
+
+	for _, serv := range r.Servers {
+		wg.Add(1)
+		go func(serv string) {
+			defer wg.Done()
+			outerr = r.gatherServer(serv, acc, nil)
+		}(serv)
+	}
+
+	wg.Wait()
+
+	return outerr
+}
+
+func (r *Couchbase) gatherServer(addr string, acc telegraf.Accumulator, pool *couchbase.Pool) error {
+	if pool == nil {
+		client, err := couchbase.Connect(addr)
+		if err != nil {
+			return err
+		}
+
+		// `default` is the only possible pool name. It's a
+		// placeholder for a possible future Couchbase feature. See
+		// http://stackoverflow.com/a/16990911/17498.
+		p, err := client.GetPool("default")
+		if err != nil {
+			return err
+		}
+		pool = &p
+	}
+	for i := 0; i < len(pool.Nodes); i++ {
+		node := pool.Nodes[i]
+		tags := map[string]string{"cluster": addr, "hostname": node.Hostname}
+		fields := make(map[string]interface{})
+		fields["memory_free"] = node.MemoryFree
+		fields["memory_total"] = node.MemoryTotal
+		acc.AddFields("couchbase_node", fields, tags)
+	}
+	for bucketName, _ := range pool.BucketMap {
+		tags := map[string]string{"cluster": addr, "bucket": bucketName}
+		bs := pool.BucketMap[bucketName].BasicStats
+		fields := make(map[string]interface{})
+		fields["quota_percent_used"] = bs["quotaPercentUsed"]
+		fields["ops_per_sec"] = bs["opsPerSec"]
+		fields["disk_fetches"] = bs["diskFetches"]
+		fields["item_count"] = bs["itemCount"]
+		fields["disk_used"] = bs["diskUsed"]
+		fields["data_used"] = bs["dataUsed"]
+		fields["mem_used"] = bs["memUsed"]
+		acc.AddFields("couchbase_bucket", fields, tags)
+	}
+	return nil
+}
+
+func init() {
+	inputs.Add("couchbase", func() telegraf.Input {
+		return &Couchbase{}
+	})
+}

plugins/inputs/couchdb/couchdb.go

@@ -10,6 +10,7 @@ import (
 	"reflect"
 	"strings"
 	"sync"
+	"time"
 )
 
 // Schema:
@@ -112,9 +113,18 @@ func (c *CouchDB) Gather(accumulator telegraf.Accumulator) error {
 
 }
 
+var tr = &http.Transport{
+	ResponseHeaderTimeout: time.Duration(3 * time.Second),
+}
+
+var client = &http.Client{
+	Transport: tr,
+	Timeout:   time.Duration(4 * time.Second),
+}
+
 func (c *CouchDB) fetchAndInsertData(accumulator telegraf.Accumulator, host string) error {
 
-	response, error := http.Get(host)
+	response, error := client.Get(host)
 	if error != nil {
 		return error
 	}

plugins/inputs/disque/disque.go

@@ -9,6 +9,7 @@ import (
 	"strconv"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/plugins/inputs"
@@ -23,13 +24,14 @@ type Disque struct {
 
 var sampleConfig = `
   ## An array of URI to gather stats about. Specify an ip or hostname
-  ## with optional port and password. ie disque://localhost, disque://10.10.3.33:18832,
+  ## with optional port and password.
-  ## 10.0.0.1:10000, etc.
+  ## ie disque://localhost, disque://10.10.3.33:18832, 10.0.0.1:10000, etc.
-
   ## If no servers are specified, then localhost is used as the host.
   servers = ["localhost"]
 `
 
+var defaultTimeout = 5 * time.Second
+
 func (r *Disque) SampleConfig() string {
 	return sampleConfig
 }
@@ -107,7 +109,7 @@ func (g *Disque) gatherServer(addr *url.URL, acc telegraf.Accumulator) error {
 			addr.Host = addr.Host + ":" + defaultPort
 		}
 
-		c, err := net.Dial("tcp", addr.Host)
+		c, err := net.DialTimeout("tcp", addr.Host, defaultTimeout)
 		if err != nil {
 			return fmt.Errorf("Unable to connect to disque server '%s': %s", addr.Host, err)
 		}
@@ -132,6 +134,9 @@ func (g *Disque) gatherServer(addr *url.URL, acc telegraf.Accumulator) error {
 		g.c = c
 	}
 
+	// Extend connection
+	g.c.SetDeadline(time.Now().Add(defaultTimeout))
+
 	g.c.Write([]byte("info\r\n"))
 
 	r := bufio.NewReader(g.c)

plugins/inputs/dns_query/dns_query.go

@@ -35,7 +35,8 @@ var sampleConfig = `
   ## Domains or subdomains to query. "."(root) is default
   domains = ["."] # optional
 
-  ## Query record type. Posible values: A, AAAA, CNAME, MX,  NS, PTR, TXT, SOA, SPF, SRV. Default is "NS"
+  ## Query record type. Default is "A"
+  ## Posible values: A, AAAA, CNAME, MX, NS, PTR, TXT, SOA, SPF, SRV.
   record_type = "A" # optional
 
   ## Dns server port. 53 is default

plugins/inputs/dns_query/dns_query_test.go

@@ -1,11 +1,14 @@
 package dns_query
 
 import (
-	"github.com/influxdata/telegraf/testutil"
-	"github.com/miekg/dns"
-	"github.com/stretchr/testify/assert"
 	"testing"
 	"time"
+
+	"github.com/influxdata/telegraf/testutil"
+
+	"github.com/miekg/dns"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 var servers = []string{"8.8.8.8"}
@@ -21,7 +24,7 @@ func TestGathering(t *testing.T) {
 	err := dnsConfig.Gather(&acc)
 	assert.NoError(t, err)
 	metric, ok := acc.Get("dns_query")
-	assert.True(t, ok)
+	require.True(t, ok)
 	queryTime, _ := metric.Fields["query_time_ms"].(float64)
 
 	assert.NotEqual(t, 0, queryTime)
@@ -38,7 +41,7 @@ func TestGatheringMxRecord(t *testing.T) {
 	err := dnsConfig.Gather(&acc)
 	assert.NoError(t, err)
 	metric, ok := acc.Get("dns_query")
-	assert.True(t, ok)
+	require.True(t, ok)
 	queryTime, _ := metric.Fields["query_time_ms"].(float64)
 
 	assert.NotEqual(t, 0, queryTime)
@@ -61,7 +64,7 @@ func TestGatheringRootDomain(t *testing.T) {
 	err := dnsConfig.Gather(&acc)
 	assert.NoError(t, err)
 	metric, ok := acc.Get("dns_query")
-	assert.True(t, ok)
+	require.True(t, ok)
 	queryTime, _ := metric.Fields["query_time_ms"].(float64)
 
 	fields["query_time_ms"] = queryTime
@@ -84,7 +87,7 @@ func TestMetricContainsServerAndDomainAndRecordTypeTags(t *testing.T) {
 	err := dnsConfig.Gather(&acc)
 	assert.NoError(t, err)
 	metric, ok := acc.Get("dns_query")
-	assert.True(t, ok)
+	require.True(t, ok)
 	queryTime, _ := metric.Fields["query_time_ms"].(float64)
 
 	fields["query_time_ms"] = queryTime

plugins/inputs/docker/README.md

@@ -5,11 +5,11 @@ docker containers. You can read Docker's documentation for their remote API
 [here](https://docs.docker.com/engine/reference/api/docker_remote_api_v1.20/#get-container-stats-based-on-resource-usage)
 
 The docker plugin uses the excellent
-[fsouza go-dockerclient](https://github.com/fsouza/go-dockerclient) library to
+[docker engine-api](https://github.com/docker/engine-api) library to
 gather stats. Documentation for the library can be found
-[here](https://godoc.org/github.com/fsouza/go-dockerclient) and documentation
+[here](https://godoc.org/github.com/docker/engine-api) and documentation
 for the stat structure can be found
-[here](https://godoc.org/github.com/fsouza/go-dockerclient#Stats)
+[here](https://godoc.org/github.com/docker/engine-api/types#Stats)
 
 ### Configuration:
 
@@ -74,6 +74,7 @@ on the availability of per-cpu stats on your system.
     - usage_in_usermode
     - usage_system
     - usage_total
+    - usage_percent
 - docker_net
     - rx_dropped
     - rx_bytes
@@ -94,18 +95,50 @@ on the availability of per-cpu stats on your system.
     - io_serviced_recursive_sync
     - io_serviced_recursive_total
     - io_serviced_recursive_write
+- docker_
+    - n_used_file_descriptors
+    - n_cpus
+    - n_containers
+    - n_images
+    - n_goroutines
+    - n_listener_events
+    - memory_total
+    - pool_blocksize
+- docker_data
+    - available
+    - total
+    - used
+- docker_metadata
+    - available
+    - total
+    - used
+
 
 ### Tags:
 
-- All stats have the following tags:
+- docker (memory_total)
+    - unit=bytes
+- docker (pool_blocksize)
+    - unit=bytes
+- docker_data
+    - unit=bytes
+- docker_metadata
+    - unit=bytes
+
+- docker_cpu specific:
     - cont_id (container ID)
     - cont_image (container image)
     - cont_name (container name)
-- docker_cpu specific:
     - cpu
 - docker_net specific:
+    - cont_id (container ID)
+    - cont_image (container image)
+    - cont_name (container name)
     - network
 - docker_blkio specific:
+    - cont_id (container ID)
+    - cont_image (container image)
+    - cont_name (container name)
     - device
 
 ### Example Output:
@@ -113,6 +146,16 @@ on the availability of per-cpu stats on your system.
 ```
 % ./telegraf -config ~/ws/telegraf.conf -input-filter docker -test
 * Plugin: docker, Collection 1
+> docker n_cpus=8i 1456926671065383978
+> docker n_used_file_descriptors=15i 1456926671065383978
+> docker n_containers=7i 1456926671065383978
+> docker n_images=152i 1456926671065383978
+> docker n_goroutines=36i 1456926671065383978
+> docker n_listener_events=0i 1456926671065383978
+> docker,unit=bytes memory_total=18935443456i 1456926671065383978
+> docker,unit=bytes pool_blocksize=65540i 1456926671065383978
+> docker_data,unit=bytes available=24340000000i,total=107400000000i,used=14820000000i 1456926671065383978
+> docker_metadata,unit=bytes available=2126999999i,total=2146999999i,used=20420000i 145692667106538
 > docker_mem,cont_id=5705ba8ed8fb47527410653d60a8bb2f3af5e62372297c419022a3cc6d45d848,\
 cont_image=spotify/kafka,cont_name=kafka \
 active_anon=52568064i,active_file=6926336i,cache=12038144i,fail_count=0i,\

plugins/inputs/docker/docker.go

@@ -1,25 +1,52 @@
 package system
 
 import (
+	"encoding/json"
 	"fmt"
+	"io"
 	"log"
+	"regexp"
+	"strconv"
 	"strings"
 	"sync"
 	"time"
 
+	"golang.org/x/net/context"
+
+	"github.com/docker/engine-api/client"
+	"github.com/docker/engine-api/types"
 	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/plugins/inputs"
-
-	"github.com/fsouza/go-dockerclient"
 )
 
+// Docker object
 type Docker struct {
 	Endpoint       string
 	ContainerNames []string
 
-	client *docker.Client
+	client DockerClient
 }
 
+// DockerClient interface, useful for testing
+type DockerClient interface {
+	Info(ctx context.Context) (types.Info, error)
+	ContainerList(ctx context.Context, options types.ContainerListOptions) ([]types.Container, error)
+	ContainerStats(ctx context.Context, containerID string, stream bool) (io.ReadCloser, error)
+}
+
+// KB, MB, GB, TB, PB...human friendly
+const (
+	KB = 1000
+	MB = 1000 * KB
+	GB = 1000 * MB
+	TB = 1000 * GB
+	PB = 1000 * TB
+)
+
+var (
+	sizeRegex = regexp.MustCompile(`^(\d+(\.\d+)*) ?([kKmMgGtTpP])?[bB]?$`)
+)
+
 var sampleConfig = `
   ## Docker Endpoint
   ##   To use TCP, set endpoint = "tcp://[ip]:[port]"
@@ -29,28 +56,32 @@ var sampleConfig = `
   container_names = []
 `
 
+// Description returns input description
 func (d *Docker) Description() string {
 	return "Read metrics about docker containers"
 }
 
+// SampleConfig prints sampleConfig
 func (d *Docker) SampleConfig() string { return sampleConfig }
 
+// Gather starts stats collection
 func (d *Docker) Gather(acc telegraf.Accumulator) error {
 	if d.client == nil {
-		var c *docker.Client
+		var c *client.Client
 		var err error
+		defaultHeaders := map[string]string{"User-Agent": "engine-api-cli-1.0"}
 		if d.Endpoint == "ENV" {
-			c, err = docker.NewClientFromEnv()
+			c, err = client.NewEnvClient()
 			if err != nil {
 				return err
 			}
 		} else if d.Endpoint == "" {
-			c, err = docker.NewClient("unix:///var/run/docker.sock")
+			c, err = client.NewClient("unix:///var/run/docker.sock", "", nil, defaultHeaders)
 			if err != nil {
 				return err
 			}
 		} else {
-			c, err = docker.NewClient(d.Endpoint)
+			c, err = client.NewClient(d.Endpoint, "", nil, defaultHeaders)
 			if err != nil {
 				return err
 			}
@@ -58,17 +89,25 @@ func (d *Docker) Gather(acc telegraf.Accumulator) error {
 		d.client = c
 	}
 
-	opts := docker.ListContainersOptions{}
+	// Get daemon info
-	containers, err := d.client.ListContainers(opts)
+	err := d.gatherInfo(acc)
+	if err != nil {
+		fmt.Println(err.Error())
+	}
+
+	// List containers
+	opts := types.ContainerListOptions{}
+	containers, err := d.client.ContainerList(context.Background(), opts)
 	if err != nil {
 		return err
 	}
 
+	// Get container data
 	var wg sync.WaitGroup
 	wg.Add(len(containers))
 	for _, container := range containers {
 
-		go func(c docker.APIContainers) {
+		go func(c types.Container) {
 			defer wg.Done()
 			err := d.gatherContainer(c, acc)
 			if err != nil {
@@ -81,10 +120,78 @@ func (d *Docker) Gather(acc telegraf.Accumulator) error {
 	return nil
 }
 
+func (d *Docker) gatherInfo(acc telegraf.Accumulator) error {
+	// Init vars
+	dataFields := make(map[string]interface{})
+	metadataFields := make(map[string]interface{})
+	now := time.Now()
+	// Get info from docker daemon
+	info, err := d.client.Info(context.Background())
+	if err != nil {
+		return err
+	}
+
+	fields := map[string]interface{}{
+		"n_cpus":                  info.NCPU,
+		"n_used_file_descriptors": info.NFd,
+		"n_containers":            info.Containers,
+		"n_images":                info.Images,
+		"n_goroutines":            info.NGoroutines,
+		"n_listener_events":       info.NEventsListener,
+	}
+	// Add metrics
+	acc.AddFields("docker",
+		fields,
+		nil,
+		now)
+	acc.AddFields("docker",
+		map[string]interface{}{"memory_total": info.MemTotal},
+		map[string]string{"unit": "bytes"},
+		now)
+	// Get storage metrics
+	for _, rawData := range info.DriverStatus {
+		// Try to convert string to int (bytes)
+		value, err := parseSize(rawData[1])
+		if err != nil {
+			continue
+		}
+		name := strings.ToLower(strings.Replace(rawData[0], " ", "_", -1))
+		if name == "pool_blocksize" {
+			// pool blocksize
+			acc.AddFields("docker",
+				map[string]interface{}{"pool_blocksize": value},
+				map[string]string{"unit": "bytes"},
+				now)
+		} else if strings.HasPrefix(name, "data_space_") {
+			// data space
+			fieldName := strings.TrimPrefix(name, "data_space_")
+			dataFields[fieldName] = value
+		} else if strings.HasPrefix(name, "metadata_space_") {
+			// metadata space
+			fieldName := strings.TrimPrefix(name, "metadata_space_")
+			metadataFields[fieldName] = value
+		}
+	}
+	if len(dataFields) > 0 {
+		acc.AddFields("docker_data",
+			dataFields,
+			map[string]string{"unit": "bytes"},
+			now)
+	}
+	if len(metadataFields) > 0 {
+		acc.AddFields("docker_metadata",
+			metadataFields,
+			map[string]string{"unit": "bytes"},
+			now)
+	}
+	return nil
+}
+
 func (d *Docker) gatherContainer(
-	container docker.APIContainers,
+	container types.Container,
 	acc telegraf.Accumulator,
 ) error {
+	var v *types.StatsJSON
 	// Parse container name
 	cname := "unknown"
 	if len(container.Names) > 0 {
@@ -103,28 +210,14 @@ func (d *Docker) gatherContainer(
 		}
 	}
 
-	statChan := make(chan *docker.Stats)
+	r, err := d.client.ContainerStats(context.Background(), container.ID, false)
-	done := make(chan bool)
+	if err != nil {
-	statOpts := docker.StatsOptions{
+		log.Printf("Error getting docker stats: %s\n", err.Error())
-		Stream:  false,
-		ID:      container.ID,
-		Stats:   statChan,
-		Done:    done,
-		Timeout: time.Duration(time.Second * 5),
 	}
-
+	defer r.Close()
-	go func() {
+	dec := json.NewDecoder(r)
-		err := d.client.Stats(statOpts)
+	if err = dec.Decode(&v); err != nil {
-		if err != nil {
+		log.Printf("Error decoding: %s\n", err.Error())
-			log.Printf("Error getting docker stats: %s\n", err.Error())
-		}
-	}()
-
-	stat := <-statChan
-	close(done)
-
-	if stat == nil {
-		return nil
 	}
 
 	// Add labels to tags
@@ -132,13 +225,13 @@ func (d *Docker) gatherContainer(
 		tags[k] = v
 	}
 
-	gatherContainerStats(stat, acc, tags)
+	gatherContainerStats(v, acc, tags)
 
 	return nil
 }
 
 func gatherContainerStats(
-	stat *docker.Stats,
+	stat *types.StatsJSON,
 	acc telegraf.Accumulator,
 	tags map[string]string,
 ) {
@@ -149,35 +242,35 @@ func gatherContainerStats(
 		"usage":                     stat.MemoryStats.Usage,
 		"fail_count":                stat.MemoryStats.Failcnt,
 		"limit":                     stat.MemoryStats.Limit,
-		"total_pgmafault":           stat.MemoryStats.Stats.TotalPgmafault,
+		"total_pgmafault":           stat.MemoryStats.Stats["total_pgmajfault"],
-		"cache":                     stat.MemoryStats.Stats.Cache,
+		"cache":                     stat.MemoryStats.Stats["cache"],
-		"mapped_file":               stat.MemoryStats.Stats.MappedFile,
+		"mapped_file":               stat.MemoryStats.Stats["mapped_file"],
-		"total_inactive_file":       stat.MemoryStats.Stats.TotalInactiveFile,
+		"total_inactive_file":       stat.MemoryStats.Stats["total_inactive_file"],
-		"pgpgout":                   stat.MemoryStats.Stats.Pgpgout,
+		"pgpgout":                   stat.MemoryStats.Stats["pagpgout"],
-		"rss":                       stat.MemoryStats.Stats.Rss,
+		"rss":                       stat.MemoryStats.Stats["rss"],
-		"total_mapped_file":         stat.MemoryStats.Stats.TotalMappedFile,
+		"total_mapped_file":         stat.MemoryStats.Stats["total_mapped_file"],
-		"writeback":                 stat.MemoryStats.Stats.Writeback,
+		"writeback":                 stat.MemoryStats.Stats["writeback"],
-		"unevictable":               stat.MemoryStats.Stats.Unevictable,
+		"unevictable":               stat.MemoryStats.Stats["unevictable"],
-		"pgpgin":                    stat.MemoryStats.Stats.Pgpgin,
+		"pgpgin":                    stat.MemoryStats.Stats["pgpgin"],
-		"total_unevictable":         stat.MemoryStats.Stats.TotalUnevictable,
+		"total_unevictable":         stat.MemoryStats.Stats["total_unevictable"],
-		"pgmajfault":                stat.MemoryStats.Stats.Pgmajfault,
+		"pgmajfault":                stat.MemoryStats.Stats["pgmajfault"],
-		"total_rss":                 stat.MemoryStats.Stats.TotalRss,
+		"total_rss":                 stat.MemoryStats.Stats["total_rss"],
-		"total_rss_huge":            stat.MemoryStats.Stats.TotalRssHuge,
+		"total_rss_huge":            stat.MemoryStats.Stats["total_rss_huge"],
-		"total_writeback":           stat.MemoryStats.Stats.TotalWriteback,
+		"total_writeback":           stat.MemoryStats.Stats["total_write_back"],
-		"total_inactive_anon":       stat.MemoryStats.Stats.TotalInactiveAnon,
+		"total_inactive_anon":       stat.MemoryStats.Stats["total_inactive_anon"],
-		"rss_huge":                  stat.MemoryStats.Stats.RssHuge,
+		"rss_huge":                  stat.MemoryStats.Stats["rss_huge"],
-		"hierarchical_memory_limit": stat.MemoryStats.Stats.HierarchicalMemoryLimit,
+		"hierarchical_memory_limit": stat.MemoryStats.Stats["hierarchical_memory_limit"],
-		"total_pgfault":             stat.MemoryStats.Stats.TotalPgfault,
+		"total_pgfault":             stat.MemoryStats.Stats["total_pgfault"],
-		"total_active_file":         stat.MemoryStats.Stats.TotalActiveFile,
+		"total_active_file":         stat.MemoryStats.Stats["total_active_file"],
-		"active_anon":               stat.MemoryStats.Stats.ActiveAnon,
+		"active_anon":               stat.MemoryStats.Stats["active_anon"],
-		"total_active_anon":         stat.MemoryStats.Stats.TotalActiveAnon,
+		"total_active_anon":         stat.MemoryStats.Stats["total_active_anon"],
-		"total_pgpgout":             stat.MemoryStats.Stats.TotalPgpgout,
+		"total_pgpgout":             stat.MemoryStats.Stats["total_pgpgout"],
-		"total_cache":               stat.MemoryStats.Stats.TotalCache,
+		"total_cache":               stat.MemoryStats.Stats["total_cache"],
-		"inactive_anon":             stat.MemoryStats.Stats.InactiveAnon,
+		"inactive_anon":             stat.MemoryStats.Stats["inactive_anon"],
-		"active_file":               stat.MemoryStats.Stats.ActiveFile,
+		"active_file":               stat.MemoryStats.Stats["active_file"],
-		"pgfault":                   stat.MemoryStats.Stats.Pgfault,
+		"pgfault":                   stat.MemoryStats.Stats["pgfault"],
-		"inactive_file":             stat.MemoryStats.Stats.InactiveFile,
+		"inactive_file":             stat.MemoryStats.Stats["inactive_file"],
-		"total_pgpgin":              stat.MemoryStats.Stats.TotalPgpgin,
+		"total_pgpgin":              stat.MemoryStats.Stats["total_pgpgin"],
 		"usage_percent":             calculateMemPercent(stat),
 	}
 	acc.AddFields("docker_mem", memfields, tags, now)
@@ -186,7 +279,7 @@ func gatherContainerStats(
 		"usage_total":                  stat.CPUStats.CPUUsage.TotalUsage,
 		"usage_in_usermode":            stat.CPUStats.CPUUsage.UsageInUsermode,
 		"usage_in_kernelmode":          stat.CPUStats.CPUUsage.UsageInKernelmode,
-		"usage_system":                 stat.CPUStats.SystemCPUUsage,
+		"usage_system":                 stat.CPUStats.SystemUsage,
 		"throttling_periods":           stat.CPUStats.ThrottlingData.Periods,
 		"throttling_throttled_periods": stat.CPUStats.ThrottlingData.ThrottledPeriods,
 		"throttling_throttled_time":    stat.CPUStats.ThrottlingData.ThrottledTime,
@@ -222,7 +315,7 @@ func gatherContainerStats(
 	gatherBlockIOMetrics(stat, acc, tags, now)
 }
 
-func calculateMemPercent(stat *docker.Stats) float64 {
+func calculateMemPercent(stat *types.StatsJSON) float64 {
 	var memPercent = 0.0
 	if stat.MemoryStats.Limit > 0 {
 		memPercent = float64(stat.MemoryStats.Usage) / float64(stat.MemoryStats.Limit) * 100.0
@@ -230,11 +323,11 @@ func calculateMemPercent(stat *docker.Stats) float64 {
 	return memPercent
 }
 
-func calculateCPUPercent(stat *docker.Stats) float64 {
+func calculateCPUPercent(stat *types.StatsJSON) float64 {
 	var cpuPercent = 0.0
 	// calculate the change for the cpu and system usage of the container in between readings
 	cpuDelta := float64(stat.CPUStats.CPUUsage.TotalUsage) - float64(stat.PreCPUStats.CPUUsage.TotalUsage)
-	systemDelta := float64(stat.CPUStats.SystemCPUUsage) - float64(stat.PreCPUStats.SystemCPUUsage)
+	systemDelta := float64(stat.CPUStats.SystemUsage) - float64(stat.PreCPUStats.SystemUsage)
 
 	if systemDelta > 0.0 && cpuDelta > 0.0 {
 		cpuPercent = (cpuDelta / systemDelta) * float64(len(stat.CPUStats.CPUUsage.PercpuUsage)) * 100.0
@@ -243,7 +336,7 @@ func calculateCPUPercent(stat *docker.Stats) float64 {
 }
 
 func gatherBlockIOMetrics(
-	stat *docker.Stats,
+	stat *types.StatsJSON,
 	acc telegraf.Accumulator,
 	tags map[string]string,
 	now time.Time,
@@ -252,7 +345,7 @@ func gatherBlockIOMetrics(
 	// Make a map of devices to their block io stats
 	deviceStatMap := make(map[string]map[string]interface{})
 
-	for _, metric := range blkioStats.IOServiceBytesRecursive {
+	for _, metric := range blkioStats.IoServiceBytesRecursive {
 		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
 		_, ok := deviceStatMap[device]
 		if !ok {
@@ -263,7 +356,7 @@ func gatherBlockIOMetrics(
 		deviceStatMap[device][field] = metric.Value
 	}
 
-	for _, metric := range blkioStats.IOServicedRecursive {
+	for _, metric := range blkioStats.IoServicedRecursive {
 		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
 		_, ok := deviceStatMap[device]
 		if !ok {
@@ -274,40 +367,38 @@ func gatherBlockIOMetrics(
 		deviceStatMap[device][field] = metric.Value
 	}
 
-	for _, metric := range blkioStats.IOQueueRecursive {
+	for _, metric := range blkioStats.IoQueuedRecursive {
 		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
 		field := fmt.Sprintf("io_queue_recursive_%s", strings.ToLower(metric.Op))
 		deviceStatMap[device][field] = metric.Value
 	}
 
-	for _, metric := range blkioStats.IOServiceTimeRecursive {
+	for _, metric := range blkioStats.IoServiceTimeRecursive {
 		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
 		field := fmt.Sprintf("io_service_time_recursive_%s", strings.ToLower(metric.Op))
 		deviceStatMap[device][field] = metric.Value
 	}
 
-	for _, metric := range blkioStats.IOWaitTimeRecursive {
+	for _, metric := range blkioStats.IoWaitTimeRecursive {
 		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
 		field := fmt.Sprintf("io_wait_time_%s", strings.ToLower(metric.Op))
 		deviceStatMap[device][field] = metric.Value
 	}
 
-	for _, metric := range blkioStats.IOMergedRecursive {
+	for _, metric := range blkioStats.IoMergedRecursive {
 		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
 		field := fmt.Sprintf("io_merged_recursive_%s", strings.ToLower(metric.Op))
 		deviceStatMap[device][field] = metric.Value
 	}
 
-	for _, metric := range blkioStats.IOTimeRecursive {
+	for _, metric := range blkioStats.IoTimeRecursive {
 		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
-		field := fmt.Sprintf("io_time_recursive_%s", strings.ToLower(metric.Op))
+		deviceStatMap[device]["io_time_recursive"] = metric.Value
-		deviceStatMap[device][field] = metric.Value
 	}
 
 	for _, metric := range blkioStats.SectorsRecursive {
 		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
-		field := fmt.Sprintf("sectors_recursive_%s", strings.ToLower(metric.Op))
+		deviceStatMap[device]["sectors_recursive"] = metric.Value
-		deviceStatMap[device][field] = metric.Value
 	}
 
 	for device, fields := range deviceStatMap {
@@ -334,6 +425,27 @@ func sliceContains(in string, sl []string) bool {
 	return false
 }
 
+// Parses the human-readable size string into the amount it represents.
+func parseSize(sizeStr string) (int64, error) {
+	matches := sizeRegex.FindStringSubmatch(sizeStr)
+	if len(matches) != 4 {
+		return -1, fmt.Errorf("invalid size: '%s'", sizeStr)
+	}
+
+	size, err := strconv.ParseFloat(matches[1], 64)
+	if err != nil {
+		return -1, err
+	}
+
+	uMap := map[string]int64{"k": KB, "m": MB, "g": GB, "t": TB, "p": PB}
+	unitPrefix := strings.ToLower(matches[3])
+	if mul, ok := uMap[unitPrefix]; ok {
+		size *= float64(mul)
+	}
+
+	return int64(size), nil
+}
+
 func init() {
 	inputs.Add("docker", func() telegraf.Input {
 		return &Docker{}

plugins/inputs/docker/docker_test.go

@@ -1,12 +1,19 @@
 package system
 
 import (
+	"io"
+	"io/ioutil"
+	"strings"
 	"testing"
 	"time"
 
+	"golang.org/x/net/context"
+
+	"github.com/docker/engine-api/types"
+	"github.com/docker/engine-api/types/registry"
 	"github.com/influxdata/telegraf/testutil"
 
-	"github.com/fsouza/go-dockerclient"
+	"github.com/stretchr/testify/require"
 )
 
 func TestDockerGatherContainerStats(t *testing.T) {
@@ -112,58 +119,58 @@ func TestDockerGatherContainerStats(t *testing.T) {
 	acc.AssertContainsTaggedFields(t, "docker_cpu", cpu1fields, cputags)
 }
 
-func testStats() *docker.Stats {
+func testStats() *types.StatsJSON {
-	stats := &docker.Stats{
+	stats := &types.StatsJSON{}
-		Read:     time.Now(),
+	stats.Read = time.Now()
-		Networks: make(map[string]docker.NetworkStats),
+	stats.Networks = make(map[string]types.NetworkStats)
-	}
 
 	stats.CPUStats.CPUUsage.PercpuUsage = []uint64{1, 1002}
 	stats.CPUStats.CPUUsage.UsageInUsermode = 100
 	stats.CPUStats.CPUUsage.TotalUsage = 500
 	stats.CPUStats.CPUUsage.UsageInKernelmode = 200
-	stats.CPUStats.SystemCPUUsage = 100
+	stats.CPUStats.SystemUsage = 100
 	stats.CPUStats.ThrottlingData.Periods = 1
 
 	stats.PreCPUStats.CPUUsage.TotalUsage = 400
-	stats.PreCPUStats.SystemCPUUsage = 50
+	stats.PreCPUStats.SystemUsage = 50
 
-	stats.MemoryStats.Stats.TotalPgmafault = 0
+	stats.MemoryStats.Stats = make(map[string]uint64)
-	stats.MemoryStats.Stats.Cache = 0
+	stats.MemoryStats.Stats["total_pgmajfault"] = 0
-	stats.MemoryStats.Stats.MappedFile = 0
+	stats.MemoryStats.Stats["cache"] = 0
-	stats.MemoryStats.Stats.TotalInactiveFile = 0
+	stats.MemoryStats.Stats["mapped_file"] = 0
-	stats.MemoryStats.Stats.Pgpgout = 0
+	stats.MemoryStats.Stats["total_inactive_file"] = 0
-	stats.MemoryStats.Stats.Rss = 0
+	stats.MemoryStats.Stats["pagpgout"] = 0
-	stats.MemoryStats.Stats.TotalMappedFile = 0
+	stats.MemoryStats.Stats["rss"] = 0
-	stats.MemoryStats.Stats.Writeback = 0
+	stats.MemoryStats.Stats["total_mapped_file"] = 0
-	stats.MemoryStats.Stats.Unevictable = 0
+	stats.MemoryStats.Stats["writeback"] = 0
-	stats.MemoryStats.Stats.Pgpgin = 0
+	stats.MemoryStats.Stats["unevictable"] = 0
-	stats.MemoryStats.Stats.TotalUnevictable = 0
+	stats.MemoryStats.Stats["pgpgin"] = 0
-	stats.MemoryStats.Stats.Pgmajfault = 0
+	stats.MemoryStats.Stats["total_unevictable"] = 0
-	stats.MemoryStats.Stats.TotalRss = 44
+	stats.MemoryStats.Stats["pgmajfault"] = 0
-	stats.MemoryStats.Stats.TotalRssHuge = 444
+	stats.MemoryStats.Stats["total_rss"] = 44
-	stats.MemoryStats.Stats.TotalWriteback = 55
+	stats.MemoryStats.Stats["total_rss_huge"] = 444
-	stats.MemoryStats.Stats.TotalInactiveAnon = 0
+	stats.MemoryStats.Stats["total_write_back"] = 55
-	stats.MemoryStats.Stats.RssHuge = 0
+	stats.MemoryStats.Stats["total_inactive_anon"] = 0
-	stats.MemoryStats.Stats.HierarchicalMemoryLimit = 0
+	stats.MemoryStats.Stats["rss_huge"] = 0
-	stats.MemoryStats.Stats.TotalPgfault = 0
+	stats.MemoryStats.Stats["hierarchical_memory_limit"] = 0
-	stats.MemoryStats.Stats.TotalActiveFile = 0
+	stats.MemoryStats.Stats["total_pgfault"] = 0
-	stats.MemoryStats.Stats.ActiveAnon = 0
+	stats.MemoryStats.Stats["total_active_file"] = 0
-	stats.MemoryStats.Stats.TotalActiveAnon = 0
+	stats.MemoryStats.Stats["active_anon"] = 0
-	stats.MemoryStats.Stats.TotalPgpgout = 0
+	stats.MemoryStats.Stats["total_active_anon"] = 0
-	stats.MemoryStats.Stats.TotalCache = 0
+	stats.MemoryStats.Stats["total_pgpgout"] = 0
-	stats.MemoryStats.Stats.InactiveAnon = 0
+	stats.MemoryStats.Stats["total_cache"] = 0
-	stats.MemoryStats.Stats.ActiveFile = 1
+	stats.MemoryStats.Stats["inactive_anon"] = 0
-	stats.MemoryStats.Stats.Pgfault = 2
+	stats.MemoryStats.Stats["active_file"] = 1
-	stats.MemoryStats.Stats.InactiveFile = 3
+	stats.MemoryStats.Stats["pgfault"] = 2
-	stats.MemoryStats.Stats.TotalPgpgin = 4
+	stats.MemoryStats.Stats["inactive_file"] = 3
+	stats.MemoryStats.Stats["total_pgpgin"] = 4
 
 	stats.MemoryStats.MaxUsage = 1001
 	stats.MemoryStats.Usage = 1111
 	stats.MemoryStats.Failcnt = 1
 	stats.MemoryStats.Limit = 2000
 
-	stats.Networks["eth0"] = docker.NetworkStats{
+	stats.Networks["eth0"] = types.NetworkStats{
 		RxDropped: 1,
 		RxBytes:   2,
 		RxErrors:  3,
@@ -174,23 +181,247 @@ func testStats() *docker.Stats {
 		TxBytes:   4,
 	}
 
-	sbr := docker.BlkioStatsEntry{
+	sbr := types.BlkioStatEntry{
 		Major: 6,
 		Minor: 0,
 		Op:    "read",
 		Value: 100,
 	}
-	sr := docker.BlkioStatsEntry{
+	sr := types.BlkioStatEntry{
 		Major: 6,
 		Minor: 0,
 		Op:    "write",
 		Value: 101,
 	}
 
-	stats.BlkioStats.IOServiceBytesRecursive = append(
+	stats.BlkioStats.IoServiceBytesRecursive = append(
-		stats.BlkioStats.IOServiceBytesRecursive, sbr)
+		stats.BlkioStats.IoServiceBytesRecursive, sbr)
-	stats.BlkioStats.IOServicedRecursive = append(
+	stats.BlkioStats.IoServicedRecursive = append(
-		stats.BlkioStats.IOServicedRecursive, sr)
+		stats.BlkioStats.IoServicedRecursive, sr)
 
 	return stats
 }
+
+type FakeDockerClient struct {
+}
+
+func (d FakeDockerClient) Info(ctx context.Context) (types.Info, error) {
+	env := types.Info{
+		Containers:         108,
+		OomKillDisable:     false,
+		SystemTime:         "2016-02-24T00:55:09.15073105-05:00",
+		NEventsListener:    0,
+		ID:                 "5WQQ:TFWR:FDNG:OKQ3:37Y4:FJWG:QIKK:623T:R3ME:QTKB:A7F7:OLHD",
+		Debug:              false,
+		LoggingDriver:      "json-file",
+		KernelVersion:      "4.3.0-1-amd64",
+		IndexServerAddress: "https://index.docker.io/v1/",
+		MemTotal:           3840757760,
+		Images:             199,
+		CPUCfsQuota:        true,
+		Name:               "absol",
+		SwapLimit:          false,
+		IPv4Forwarding:     true,
+		ExecutionDriver:    "native-0.2",
+		ExperimentalBuild:  false,
+		CPUCfsPeriod:       true,
+		RegistryConfig: &registry.ServiceConfig{
+			IndexConfigs: map[string]*registry.IndexInfo{
+				"docker.io": {
+					Name:     "docker.io",
+					Mirrors:  []string{},
+					Official: true,
+					Secure:   true,
+				},
+			}, InsecureRegistryCIDRs: []*registry.NetIPNet{{IP: []byte{127, 0, 0, 0}, Mask: []byte{255, 0, 0, 0}}}, Mirrors: []string{}},
+		OperatingSystem:   "Linux Mint LMDE (containerized)",
+		BridgeNfIptables:  true,
+		HTTPSProxy:        "",
+		Labels:            []string{},
+		MemoryLimit:       false,
+		DriverStatus:      [][2]string{{"Pool Name", "docker-8:1-1182287-pool"}, {"Pool Blocksize", "65.54 kB"}, {"Backing Filesystem", "extfs"}, {"Data file", "/dev/loop0"}, {"Metadata file", "/dev/loop1"}, {"Data Space Used", "17.3 GB"}, {"Data Space Total", "107.4 GB"}, {"Data Space Available", "36.53 GB"}, {"Metadata Space Used", "20.97 MB"}, {"Metadata Space Total", "2.147 GB"}, {"Metadata Space Available", "2.127 GB"}, {"Udev Sync Supported", "true"}, {"Deferred Removal Enabled", "false"}, {"Data loop file", "/var/lib/docker/devicemapper/devicemapper/data"}, {"Metadata loop file", "/var/lib/docker/devicemapper/devicemapper/metadata"}, {"Library Version", "1.02.115 (2016-01-25)"}},
+		NFd:               19,
+		HTTPProxy:         "",
+		Driver:            "devicemapper",
+		NGoroutines:       39,
+		NCPU:              4,
+		DockerRootDir:     "/var/lib/docker",
+		NoProxy:           "",
+		BridgeNfIP6tables: true,
+	}
+	return env, nil
+}
+
+func (d FakeDockerClient) ContainerList(octx context.Context, options types.ContainerListOptions) ([]types.Container, error) {
+	container1 := types.Container{
+		ID:      "e2173b9478a6ae55e237d4d74f8bbb753f0817192b5081334dc78476296b7dfb",
+		Names:   []string{"/etcd"},
+		Image:   "quay.io/coreos/etcd:v2.2.2",
+		Command: "/etcd -name etcd0 -advertise-client-urls http://localhost:2379 -listen-client-urls http://0.0.0.0:2379",
+		Created: 1455941930,
+		Status:  "Up 4 hours",
+		Ports: []types.Port{
+			types.Port{
+				PrivatePort: 7001,
+				PublicPort:  0,
+				Type:        "tcp",
+			},
+			types.Port{
+				PrivatePort: 4001,
+				PublicPort:  0,
+				Type:        "tcp",
+			},
+			types.Port{
+				PrivatePort: 2380,
+				PublicPort:  0,
+				Type:        "tcp",
+			},
+			types.Port{
+				PrivatePort: 2379,
+				PublicPort:  2379,
+				Type:        "tcp",
+				IP:          "0.0.0.0",
+			},
+		},
+		SizeRw:     0,
+		SizeRootFs: 0,
+	}
+	container2 := types.Container{
+		ID:      "b7dfbb9478a6ae55e237d4d74f8bbb753f0817192b5081334dc78476296e2173",
+		Names:   []string{"/etcd2"},
+		Image:   "quay.io/coreos/etcd:v2.2.2",
+		Command: "/etcd -name etcd2 -advertise-client-urls http://localhost:2379 -listen-client-urls http://0.0.0.0:2379",
+		Created: 1455941933,
+		Status:  "Up 4 hours",
+		Ports: []types.Port{
+			types.Port{
+				PrivatePort: 7002,
+				PublicPort:  0,
+				Type:        "tcp",
+			},
+			types.Port{
+				PrivatePort: 4002,
+				PublicPort:  0,
+				Type:        "tcp",
+			},
+			types.Port{
+				PrivatePort: 2381,
+				PublicPort:  0,
+				Type:        "tcp",
+			},
+			types.Port{
+				PrivatePort: 2382,
+				PublicPort:  2382,
+				Type:        "tcp",
+				IP:          "0.0.0.0",
+			},
+		},
+		SizeRw:     0,
+		SizeRootFs: 0,
+	}
+
+	containers := []types.Container{container1, container2}
+	return containers, nil
+
+	//#{e6a96c84ca91a5258b7cb752579fb68826b68b49ff957487695cd4d13c343b44 titilambert/snmpsim /bin/sh -c 'snmpsimd --agent-udpv4-endpoint=0.0.0.0:31161 --process-user=root --process-group=user' 1455724831 Up 4 hours [{31161 31161 udp 0.0.0.0}] 0 0 [/snmp] map[]}]2016/02/24 01:05:01 Gathered metrics, (3s interval), from 1 inputs in 1.233836656s
+}
+
+func (d FakeDockerClient) ContainerStats(ctx context.Context, containerID string, stream bool) (io.ReadCloser, error) {
+	var stat io.ReadCloser
+	jsonStat := `{"read":"2016-02-24T11:42:27.472459608-05:00","memory_stats":{"stats":{},"limit":18935443456},"blkio_stats":{"io_service_bytes_recursive":[{"major":252,"minor":1,"op":"Read","value":753664},{"major":252,"minor":1,"op":"Write"},{"major":252,"minor":1,"op":"Sync"},{"major":252,"minor":1,"op":"Async","value":753664},{"major":252,"minor":1,"op":"Total","value":753664}],"io_serviced_recursive":[{"major":252,"minor":1,"op":"Read","value":26},{"major":252,"minor":1,"op":"Write"},{"major":252,"minor":1,"op":"Sync"},{"major":252,"minor":1,"op":"Async","value":26},{"major":252,"minor":1,"op":"Total","value":26}]},"cpu_stats":{"cpu_usage":{"percpu_usage":[17871,4959158,1646137,1231652,11829401,244656,369972,0],"usage_in_usermode":10000000,"total_usage":20298847},"system_cpu_usage":24052607520000000,"throttling_data":{}},"precpu_stats":{"cpu_usage":{"percpu_usage":[17871,4959158,1646137,1231652,11829401,244656,369972,0],"usage_in_usermode":10000000,"total_usage":20298847},"system_cpu_usage":24052599550000000,"throttling_data":{}}}`
+	stat = ioutil.NopCloser(strings.NewReader(jsonStat))
+	return stat, nil
+}
+
+func TestDockerGatherInfo(t *testing.T) {
+	var acc testutil.Accumulator
+	client := FakeDockerClient{}
+	d := Docker{client: client}
+
+	err := d.Gather(&acc)
+
+	require.NoError(t, err)
+
+	acc.AssertContainsTaggedFields(t,
+		"docker",
+		map[string]interface{}{
+			"n_listener_events":       int(0),
+			"n_cpus":                  int(4),
+			"n_used_file_descriptors": int(19),
+			"n_containers":            int(108),
+			"n_images":                int(199),
+			"n_goroutines":            int(39),
+		},
+		map[string]string{},
+	)
+
+	acc.AssertContainsTaggedFields(t,
+		"docker_data",
+		map[string]interface{}{
+			"used":      int64(17300000000),
+			"total":     int64(107400000000),
+			"available": int64(36530000000),
+		},
+		map[string]string{
+			"unit": "bytes",
+		},
+	)
+	acc.AssertContainsTaggedFields(t,
+		"docker_cpu",
+		map[string]interface{}{
+			"usage_total": uint64(1231652),
+		},
+		map[string]string{
+			"cont_id":    "b7dfbb9478a6ae55e237d4d74f8bbb753f0817192b5081334dc78476296e2173",
+			"cont_name":  "etcd2",
+			"cont_image": "quay.io/coreos/etcd:v2.2.2",
+			"cpu":        "cpu3",
+		},
+	)
+	acc.AssertContainsTaggedFields(t,
+		"docker_mem",
+		map[string]interface{}{
+			"total_pgpgout":             uint64(0),
+			"usage_percent":             float64(0),
+			"rss":                       uint64(0),
+			"total_writeback":           uint64(0),
+			"active_anon":               uint64(0),
+			"total_pgmafault":           uint64(0),
+			"total_rss":                 uint64(0),
+			"total_unevictable":         uint64(0),
+			"active_file":               uint64(0),
+			"total_mapped_file":         uint64(0),
+			"pgpgin":                    uint64(0),
+			"total_active_file":         uint64(0),
+			"total_active_anon":         uint64(0),
+			"total_cache":               uint64(0),
+			"inactive_anon":             uint64(0),
+			"pgmajfault":                uint64(0),
+			"total_inactive_anon":       uint64(0),
+			"total_rss_huge":            uint64(0),
+			"rss_huge":                  uint64(0),
+			"hierarchical_memory_limit": uint64(0),
+			"pgpgout":                   uint64(0),
+			"unevictable":               uint64(0),
+			"total_inactive_file":       uint64(0),
+			"writeback":                 uint64(0),
+			"total_pgfault":             uint64(0),
+			"total_pgpgin":              uint64(0),
+			"cache":                     uint64(0),
+			"mapped_file":               uint64(0),
+			"inactive_file":             uint64(0),
+			"max_usage":                 uint64(0),
+			"fail_count":                uint64(0),
+			"pgfault":                   uint64(0),
+			"usage":                     uint64(0),
+			"limit":                     uint64(18935443456),
+		},
+		map[string]string{
+			"cont_id":    "b7dfbb9478a6ae55e237d4d74f8bbb753f0817192b5081334dc78476296e2173",
+			"cont_name":  "etcd2",
+			"cont_image": "quay.io/coreos/etcd:v2.2.2",
+		},
+	)
+
+	//fmt.Print(info)
+}

plugins/inputs/dovecot/dovecot.go

@@ -34,6 +34,8 @@ var sampleConfig = `
   domains = []
 `
 
+var defaultTimeout = time.Second * time.Duration(5)
+
 func (d *Dovecot) SampleConfig() string { return sampleConfig }
 
 const defaultPort = "24242"
@@ -74,13 +76,16 @@ func (d *Dovecot) gatherServer(addr string, acc telegraf.Accumulator, doms map[s
 		return fmt.Errorf("Error: %s on url %s\n", err, addr)
 	}
 
-	c, err := net.Dial("tcp", addr)
+	c, err := net.DialTimeout("tcp", addr, defaultTimeout)
 	if err != nil {
 		return fmt.Errorf("Unable to connect to dovecot server '%s': %s", addr, err)
 	}
 	defer c.Close()
 
-	c.Write([]byte("EXPORT\tdomain\n\n"))
+	// Extend connection
+	c.SetDeadline(time.Now().Add(defaultTimeout))
+
+	c.Write([]byte("EXPORT\tdomain\n"))
 	var buf bytes.Buffer
 	io.Copy(&buf, c)
 	//	buf := bufio.NewReader(c)

plugins/inputs/elasticsearch/elasticsearch.go

@@ -81,7 +81,12 @@ type Elasticsearch struct {
 
 // NewElasticsearch return a new instance of Elasticsearch
 func NewElasticsearch() *Elasticsearch {
-	return &Elasticsearch{client: http.DefaultClient}
+	tr := &http.Transport{ResponseHeaderTimeout: time.Duration(3 * time.Second)}
+	client := &http.Client{
+		Transport: tr,
+		Timeout:   time.Duration(4 * time.Second),
+	}
+	return &Elasticsearch{client: client}
 }
 
 // SampleConfig returns sample configuration for this plugin.

plugins/inputs/elasticsearch/elasticsearch_test.go

@@ -34,6 +34,9 @@ func (t *transportMock) RoundTrip(r *http.Request) (*http.Response, error) {
 	return res, nil
 }
 
+func (t *transportMock) CancelRequest(_ *http.Request) {
+}
+
 func TestElasticsearch(t *testing.T) {
 	es := NewElasticsearch()
 	es.Servers = []string{"http://example.com:9200"}

plugins/inputs/exec/README.md

@@ -1,28 +1,13 @@
 # Exec Input Plugin
 
-The exec plugin can execute arbitrary commands which output:
+Please also see: [Telegraf Input Data Formats](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md)
 
-* JSON
+### Example 1 - JSON
-* InfluxDB [line-protocol](https://docs.influxdata.com/influxdb/v0.9/write_protocols/line/)
-* Graphite [graphite-protocol](http://graphite.readthedocs.org/en/latest/feeding-carbon.html)
 
-> Graphite understands messages with this format:
+#### Configuration
 
-> ```
+In this example a script called ```/tmp/test.sh``` and a script called ```/tmp/test2.sh```
-metric_path value timestamp\n
+are configured for ```[[inputs.exec]]``` in JSON format.
-```
-
-> __metric_path__ is the metric namespace that you want to populate.
-
-> __value__ is the value that you want to assign to the metric at this time.
-
-> __timestamp__ is the unix epoch time.
-
-
-If using JSON, only numeric values are parsed and turned into floats. Booleans
-and strings will be ignored.
-
-### Configuration
 
 ```
 # Read flattened metrics from one or more commands that output JSON to stdout
@@ -30,7 +15,7 @@ and strings will be ignored.
   # Shell/commands array
   commands = ["/tmp/test.sh", "/tmp/test2.sh"]
 
-  # Data format to consume. This can be "json", "influx" or "graphite" (line-protocol)
+  # Data format to consume.
   # NOTE json only reads numerical measurements, strings and booleans are ignored.
   data_format = "json"
 
@@ -64,8 +49,6 @@ Other options for modifying the measurement names are:
 name_prefix = "prefix_"
 ```
 
-### Example 1
-
 Let's say that we have the above configuration, and mycollector outputs the
 following JSON:
 
@@ -85,10 +68,16 @@ The collected metrics will be stored as fields under the measurement
 ```
 exec_mycollector a=0.5,b_c=0.1,b_d=5 1452815002357578567
 ```
+If using JSON, only numeric values are parsed and turned into floats. Booleans
+and strings will be ignored.
 
-### Example 2
+### Example 2 - Influx Line-Protocol
 
-Now let's say we have the following configuration:
+In this example an application called ```/usr/bin/line_protocol_collector```
+and a script called ```/tmp/test2.sh``` are configured for ```[[inputs.exec]]```
+in influx line-protocol format.
+
+#### Configuration
 
 ```
 [[inputs.exec]]
@@ -98,12 +87,12 @@ Now let's say we have the following configuration:
   # command = "/usr/bin/line_protocol_collector"
   commands = ["/usr/bin/line_protocol_collector","/tmp/test2.sh"]
 
-  # Data format to consume. This can be "json" or "influx" (line-protocol)
+  # Data format to consume.
   # NOTE json only reads numerical measurements, strings and booleans are ignored.
   data_format = "influx"
 ```
 
-And line_protocol_collector outputs the following line protocol:
+The line_protocol_collector application outputs the following line protocol:
 
 ```
 cpu,cpu=cpu0,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
@@ -118,14 +107,17 @@ cpu,cpu=cpu6,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
 You will get data in InfluxDB exactly as it is defined above,
 tags are cpu=cpuN, host=foo, and datacenter=us-east with fields usage_idle
 and usage_busy. They will receive a timestamp at collection time.
+Each line must end in \n, just as the Influx line protocol does.
 
 
-### Example 3
+### Example 3 - Graphite
 
 We can also change the data_format to "graphite" to use the metrics collecting scripts such as (compatible with graphite):
 
-* Nagios [Mertics Plugins] (https://exchange.nagios.org/directory/Plugins)
+* Nagios [Metrics Plugins](https://exchange.nagios.org/directory/Plugins)
-* Sensu [Mertics Plugins] (https://github.com/sensu-plugins)
+* Sensu [Metrics Plugins](https://github.com/sensu-plugins)
+
+In this example a script called /tmp/test.sh and a script called /tmp/test2.sh are configured for [[inputs.exec]] in graphite format.
 
 #### Configuration
 ```
@@ -134,7 +126,7 @@ We can also change the data_format to "graphite" to use the metrics collecting s
   # Shell/commands array
   commands = ["/tmp/test.sh","/tmp/test2.sh"]
 
-  # Data format to consume. This can be "json", "influx" or "graphite" (line-protocol)
+  # Data format to consume.
   # NOTE json only reads numerical measurements, strings and booleans are ignored.
   data_format = "graphite"
 
@@ -161,6 +153,17 @@ We can also change the data_format to "graphite" to use the metrics collecting s
     "measurement*"
   ]
 ```
+Graphite messages are in this format:
+
+```
+metric_path value timestamp\n
+```
+
+__metric_path__ is the metric namespace that you want to populate.
+
+__value__ is the value that you want to assign to the metric at this time.
+
+__timestamp__ is the unix epoch time.
 
 And test.sh/test2.sh will output:
 
@@ -176,5 +179,5 @@ sensu.metric.net.server0.eth0.rx_dropped 0 1444234982
 
 The templates configuration will be used to parse the graphite metrics to support influxdb/opentsdb tagging store engines.
 
-More detail information about templates, please refer to [The graphite Input] (https://github.com/influxdata/influxdb/blob/master/services/graphite/README.md)
+More detail information about templates, please refer to [The graphite Input](https://github.com/influxdata/influxdb/blob/master/services/graphite/README.md)
 

plugins/inputs/exec/exec.go

@@ -5,12 +5,14 @@ import (
 	"fmt"
 	"os/exec"
 	"sync"
+	"syscall"
 
 	"github.com/gonuts/go-shellquote"
 
 	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/plugins/inputs"
 	"github.com/influxdata/telegraf/plugins/parsers"
+	"github.com/influxdata/telegraf/plugins/parsers/nagios"
 )
 
 const sampleConfig = `
@@ -20,7 +22,7 @@ const sampleConfig = `
   ## measurement name suffix (for separating different commands)
   name_suffix = "_mycollector"
 
-  ## Data format to consume. This can be "json", "influx" or "graphite"
+  ## Data format to consume.
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
@@ -46,12 +48,32 @@ func NewExec() *Exec {
 }
 
 type Runner interface {
-	Run(*Exec, string) ([]byte, error)
+	Run(*Exec, string, telegraf.Accumulator) ([]byte, error)
 }
 
 type CommandRunner struct{}
 
-func (c CommandRunner) Run(e *Exec, command string) ([]byte, error) {
+func AddNagiosState(exitCode error, acc telegraf.Accumulator) error {
+	nagiosState := 0
+	if exitCode != nil {
+		exiterr, ok := exitCode.(*exec.ExitError)
+		if ok {
+			status, ok := exiterr.Sys().(syscall.WaitStatus)
+			if ok {
+				nagiosState = status.ExitStatus()
+			} else {
+				return fmt.Errorf("exec: unable to get nagios plugin exit code")
+			}
+		} else {
+			return fmt.Errorf("exec: unable to get nagios plugin exit code")
+		}
+	}
+	fields := map[string]interface{}{"state": nagiosState}
+	acc.AddFields("nagios_state", fields, nil)
+	return nil
+}
+
+func (c CommandRunner) Run(e *Exec, command string, acc telegraf.Accumulator) ([]byte, error) {
 	split_cmd, err := shellquote.Split(command)
 	if err != nil || len(split_cmd) == 0 {
 		return nil, fmt.Errorf("exec: unable to parse command, %s", err)
@@ -63,7 +85,17 @@ func (c CommandRunner) Run(e *Exec, command string) ([]byte, error) {
 	cmd.Stdout = &out
 
 	if err := cmd.Run(); err != nil {
-		return nil, fmt.Errorf("exec: %s for command '%s'", err, command)
+		switch e.parser.(type) {
+		case *nagios.NagiosParser:
+			AddNagiosState(err, acc)
+		default:
+			return nil, fmt.Errorf("exec: %s for command '%s'", err, command)
+		}
+	} else {
+		switch e.parser.(type) {
+		case *nagios.NagiosParser:
+			AddNagiosState(nil, acc)
+		}
 	}
 
 	return out.Bytes(), nil
@@ -72,7 +104,7 @@ func (c CommandRunner) Run(e *Exec, command string) ([]byte, error) {
 func (e *Exec) ProcessCommand(command string, acc telegraf.Accumulator) {
 	defer e.wg.Done()
 
-	out, err := e.runner.Run(e, command)
+	out, err := e.runner.Run(e, command, acc)
 	if err != nil {
 		e.errChan <- err
 		return

plugins/inputs/exec/exec_test.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"testing"
 
+	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/plugins/parsers"
 
 	"github.com/influxdata/telegraf/testutil"
@@ -57,7 +58,7 @@ func newRunnerMock(out []byte, err error) Runner {
 	}
 }
 
-func (r runnerMock) Run(e *Exec, command string) ([]byte, error) {
+func (r runnerMock) Run(e *Exec, command string, acc telegraf.Accumulator) ([]byte, error) {
 	if r.err != nil {
 		return nil, r.err
 	}

plugins/inputs/github_webhooks/github_webhooks.go

@@ -73,14 +73,17 @@ func (gh *GithubWebhooks) Stop() {
 
 // Handles the / route
 func (gh *GithubWebhooks) eventHandler(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
 	eventType := r.Header["X-Github-Event"][0]
 	data, err := ioutil.ReadAll(r.Body)
 	if err != nil {
 		w.WriteHeader(http.StatusBadRequest)
+		return
 	}
 	e, err := NewEvent(data, eventType)
 	if err != nil {
 		w.WriteHeader(http.StatusBadRequest)
+		return
 	}
 	gh.Lock()
 	gh.events = append(gh.events, e)

plugins/inputs/haproxy/haproxy.go

@@ -129,8 +129,11 @@ func (g *haproxy) Gather(acc telegraf.Accumulator) error {
 
 func (g *haproxy) gatherServer(addr string, acc telegraf.Accumulator) error {
 	if g.client == nil {
-
+		tr := &http.Transport{ResponseHeaderTimeout: time.Duration(3 * time.Second)}
-		client := &http.Client{}
+		client := &http.Client{
+			Transport: tr,
+			Timeout:   time.Duration(4 * time.Second),
+		}
 		g.client = client
 	}
 

plugins/inputs/httpjson/README.md

@@ -6,7 +6,7 @@ For example, if you have a service called _mycollector_, which has HTTP endpoint
 plugin like this:
 
 ```
-[[httpjson.services]]
+[[inputs.httpjson]]
   name = "mycollector"
 
   servers = [
@@ -24,7 +24,7 @@ plugin like this:
 You can also specify which keys from server response should be considered tags:
 
 ```
-[[httpjson.services]]
+[[inputs.httpjson]]
   ...
 
   tag_keys = [
@@ -36,10 +36,10 @@ You can also specify which keys from server response should be considered tags:
 You can also specify additional request parameters for the service:
 
 ```
-[[httpjson.services]]
+[[inputs.httpjson]]
   ...
 
- [httpjson.services.parameters]
+ [inputs.httpjson.parameters]
     event_type = "cpu_spike"
     threshold = "0.75"
 
@@ -48,10 +48,10 @@ You can also specify additional request parameters for the service:
 You can also specify additional request header parameters for the service:
 
 ```
-[[httpjson.services]]
+[[inputs.httpjson]]
   ...
 
- [httpjson.services.headers]
+ [inputs.httpjson.headers]
     X-Auth-Token = "my-xauth-token"
     apiVersion = "v1"
 ```
@@ -61,18 +61,14 @@ You can also specify additional request header parameters for the service:
 Let's say that we have a service named "mycollector" configured like this:
 
 ```
-[httpjson]
+[[inputs.httpjson]]
-  [[httpjson.services]]
+  name = "mycollector"
-    name = "mycollector"
+  servers = [
-
+    "http://my.service.com/_stats"
-    servers = [
+  ]
-      "http://my.service.com/_stats"
+  # HTTP method to use (case-sensitive)
-    ]
+  method = "GET"
-
+  tag_keys = ["service"]
-    # HTTP method to use (case-sensitive)
-    method = "GET"
-
-    tag_keys = ["service"]
 ```
 
 which responds with the following JSON:
@@ -102,26 +98,21 @@ There is also the option to collect JSON from multiple services, here is an
 example doing that.
 
 ```
-[httpjson]
+[[inputs.httpjson]]
-  [[httpjson.services]]
+  name = "mycollector1"
-    name = "mycollector1"
+  servers = [
+    "http://my.service1.com/_stats"
+  ]
+  # HTTP method to use (case-sensitive)
+  method = "GET"
 
-    servers = [
+[[inputs.httpjson]]
-      "http://my.service1.com/_stats"
+  name = "mycollector2"
-    ]
+  servers = [
-
+    "http://service.net/json/stats"
-    # HTTP method to use (case-sensitive)
+  ]
-    method = "GET"
+  # HTTP method to use (case-sensitive)
-
+  method = "POST"
-  [[httpjson.services]]
-    name = "mycollector2"
-
-    servers = [
-      "http://service.net/json/stats"
-    ]
-
-    # HTTP method to use (case-sensitive)
-    method = "POST"
 ```
 
 The services respond with the following JSON:

plugins/inputs/httpjson/httpjson.go

@@ -11,6 +11,7 @@ import (
 	"time"
 
 	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/internal"
 	"github.com/influxdata/telegraf/plugins/inputs"
 	"github.com/influxdata/telegraf/plugins/parsers"
 )
@@ -23,6 +24,15 @@ type HttpJson struct {
 	Parameters map[string]string
 	Headers    map[string]string
 
+	// Path to CA file
+	SSLCA string `toml:"ssl_ca"`
+	// Path to host cert file
+	SSLCert string `toml:"ssl_cert"`
+	// Path to cert key file
+	SSLKey string `toml:"ssl_key"`
+	// Use SSL but skip chain & host verification
+	InsecureSkipVerify bool
+
 	client HTTPClient
 }
 
@@ -36,16 +46,27 @@ type HTTPClient interface {
 	// http.Response:  HTTP respons object
 	// error        :  Any error that may have occurred
 	MakeRequest(req *http.Request) (*http.Response, error)
+
+	SetHTTPClient(client *http.Client)
+	HTTPClient() *http.Client
 }
 
 type RealHTTPClient struct {
 	client *http.Client
 }
 
-func (c RealHTTPClient) MakeRequest(req *http.Request) (*http.Response, error) {
+func (c *RealHTTPClient) MakeRequest(req *http.Request) (*http.Response, error) {
 	return c.client.Do(req)
 }
 
+func (c *RealHTTPClient) SetHTTPClient(client *http.Client) {
+	c.client = client
+}
+
+func (c *RealHTTPClient) HTTPClient() *http.Client {
+	return c.client
+}
+
 var sampleConfig = `
   ## NOTE This plugin only reads numerical measurements, strings and booleans
   ## will be ignored.
@@ -77,6 +98,13 @@ var sampleConfig = `
   # [inputs.httpjson.headers]
   #   X-Auth-Token = "my-xauth-token"
   #   apiVersion = "v1"
+
+  ## Optional SSL Config
+  # ssl_ca = "/etc/telegraf/ca.pem"
+  # ssl_cert = "/etc/telegraf/cert.pem"
+  # ssl_key = "/etc/telegraf/key.pem"
+  ## Use SSL but skip chain & host verification
+  # insecure_skip_verify = false
 `
 
 func (h *HttpJson) SampleConfig() string {
@@ -91,6 +119,23 @@ func (h *HttpJson) Description() string {
 func (h *HttpJson) Gather(acc telegraf.Accumulator) error {
 	var wg sync.WaitGroup
 
+	if h.client.HTTPClient() == nil {
+		tlsCfg, err := internal.GetTLSConfig(
+			h.SSLCert, h.SSLKey, h.SSLCA, h.InsecureSkipVerify)
+		if err != nil {
+			return err
+		}
+		tr := &http.Transport{
+			ResponseHeaderTimeout: time.Duration(3 * time.Second),
+			TLSClientConfig:       tlsCfg,
+		}
+		client := &http.Client{
+			Transport: tr,
+			Timeout:   time.Duration(4 * time.Second),
+		}
+		h.client.SetHTTPClient(client)
+	}
+
 	errorChannel := make(chan error, len(h.Servers))
 
 	for _, server := range h.Servers {
@@ -244,6 +289,8 @@ func (h *HttpJson) sendRequest(serverURL string) (string, float64, error) {
 
 func init() {
 	inputs.Add("httpjson", func() telegraf.Input {
-		return &HttpJson{client: RealHTTPClient{client: &http.Client{}}}
+		return &HttpJson{
+			client: &RealHTTPClient{},
+		}
 	})
 }

plugins/inputs/httpjson/httpjson_test.go

@@ -125,7 +125,7 @@ type mockHTTPClient struct {
 // Mock implementation of MakeRequest. Usually returns an http.Response with
 // hard-coded responseBody and statusCode. However, if the request uses a
 // nonstandard method, it uses status code 405 (method not allowed)
-func (c mockHTTPClient) MakeRequest(req *http.Request) (*http.Response, error) {
+func (c *mockHTTPClient) MakeRequest(req *http.Request) (*http.Response, error) {
 	resp := http.Response{}
 	resp.StatusCode = c.statusCode
 
@@ -147,6 +147,13 @@ func (c mockHTTPClient) MakeRequest(req *http.Request) (*http.Response, error) {
 	return &resp, nil
 }
 
+func (c *mockHTTPClient) SetHTTPClient(_ *http.Client) {
+}
+
+func (c *mockHTTPClient) HTTPClient() *http.Client {
+	return nil
+}
+
 // Generates a pointer to an HttpJson object that uses a mock HTTP client.
 // Parameters:
 //     response  : Body of the response that the mock HTTP client should return
@@ -157,7 +164,7 @@ func (c mockHTTPClient) MakeRequest(req *http.Request) (*http.Response, error) {
 func genMockHttpJson(response string, statusCode int) []*HttpJson {
 	return []*HttpJson{
 		&HttpJson{
-			client: mockHTTPClient{responseBody: response, statusCode: statusCode},
+			client: &mockHTTPClient{responseBody: response, statusCode: statusCode},
 			Servers: []string{
 				"http://server1.example.com/metrics/",
 				"http://server2.example.com/metrics/",
@@ -174,7 +181,7 @@ func genMockHttpJson(response string, statusCode int) []*HttpJson {
 			},
 		},
 		&HttpJson{
-			client: mockHTTPClient{responseBody: response, statusCode: statusCode},
+			client: &mockHTTPClient{responseBody: response, statusCode: statusCode},
 			Servers: []string{
 				"http://server3.example.com/metrics/",
 				"http://server4.example.com/metrics/",
@@ -234,7 +241,7 @@ func TestHttpJsonGET_URL(t *testing.T) {
 		Servers: []string{ts.URL + "?api_key=mykey"},
 		Name:    "",
 		Method:  "GET",
-		client:  RealHTTPClient{client: &http.Client{}},
+		client:  &RealHTTPClient{client: &http.Client{}},
 	}
 
 	var acc testutil.Accumulator
@@ -307,7 +314,7 @@ func TestHttpJsonGET(t *testing.T) {
 		Name:       "",
 		Method:     "GET",
 		Parameters: params,
-		client:     RealHTTPClient{client: &http.Client{}},
+		client:     &RealHTTPClient{client: &http.Client{}},
 	}
 
 	var acc testutil.Accumulator
@@ -381,7 +388,7 @@ func TestHttpJsonPOST(t *testing.T) {
 		Name:       "",
 		Method:     "POST",
 		Parameters: params,
-		client:     RealHTTPClient{client: &http.Client{}},
+		client:     &RealHTTPClient{client: &http.Client{}},
 	}
 
 	var acc testutil.Accumulator

plugins/inputs/influxdb/influxdb.go

@@ -7,6 +7,7 @@ import (
 	"net/http"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/plugins/inputs"
@@ -70,6 +71,15 @@ type point struct {
 	Values map[string]interface{} `json:"values"`
 }
 
+var tr = &http.Transport{
+	ResponseHeaderTimeout: time.Duration(3 * time.Second),
+}
+
+var client = &http.Client{
+	Transport: tr,
+	Timeout:   time.Duration(4 * time.Second),
+}
+
 // Gathers data from a particular URL
 // Parameters:
 //     acc    : The telegraf Accumulator to use
@@ -81,7 +91,7 @@ func (i *InfluxDB) gatherURL(
 	acc telegraf.Accumulator,
 	url string,
 ) error {
-	resp, err := http.Get(url)
+	resp, err := client.Get(url)
 	if err != nil {
 		return err
 	}

plugins/inputs/ipmi_sensor/README.md

@@ -0,0 +1,42 @@
+# Telegraf ipmi plugin
+
+Get bare metal metrics using the command line utility `ipmitool`
+
+see ipmitool(https://sourceforge.net/projects/ipmitool/files/ipmitool/)
+
+The plugin will use the following command to collect remote host sensor stats:
+
+ipmitool -I lan -H 192.168.1.1 -U USERID -P PASSW0RD sdr
+
+## Measurements
+
+- ipmi_sensor:
+
+    * Tags: `name`, `server`, `unit`
+    * Fields:
+      - status
+      - value
+
+## Configuration
+
+```toml
+[[inputs.ipmi]]
+  ## specify servers via a url matching:
+  ##  [username[:password]@][protocol[(address)]]
+  ##  e.g.
+  ##    root:passwd@lan(127.0.0.1)
+  ##
+  servers = ["USERID:PASSW0RD@lan(10.20.2.203)"]
+```
+
+## Output
+
+```
+> ipmi_sensor,server=10.20.2.203,unit=degrees_c,name=ambient_temp status=1i,value=20 1458488465012559455
+> ipmi_sensor,server=10.20.2.203,unit=feet,name=altitude status=1i,value=80 1458488465012688613
+> ipmi_sensor,server=10.20.2.203,unit=watts,name=avg_power status=1i,value=220 1458488465012776511
+> ipmi_sensor,server=10.20.2.203,unit=volts,name=planar_3.3v status=1i,value=3.28 1458488465012861875
+> ipmi_sensor,server=10.20.2.203,unit=volts,name=planar_vbat status=1i,value=3.04 1458488465013072508
+> ipmi_sensor,server=10.20.2.203,unit=rpm,name=fan_1a_tach status=1i,value=2610 1458488465013137932
+> ipmi_sensor,server=10.20.2.203,unit=rpm,name=fan_1b_tach status=1i,value=1775 1458488465013279896
+```

plugins/inputs/ipmi_sensor/command.go

@@ -0,0 +1,38 @@
+package ipmi_sensor
+
+import (
+	"bytes"
+	"fmt"
+	"os/exec"
+	"strings"
+)
+
+type CommandRunner struct{}
+
+func (t CommandRunner) cmd(conn *Connection, args ...string) *exec.Cmd {
+	path := conn.Path
+	opts := append(conn.options(), args...)
+
+	if path == "" {
+		path = "ipmitool"
+	}
+
+	return exec.Command(path, opts...)
+
+}
+
+func (t CommandRunner) Run(conn *Connection, args ...string) (string, error) {
+	cmd := t.cmd(conn, args...)
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	cmd.Stdout = &stdout
+	cmd.Stderr = &stderr
+
+	err := cmd.Run()
+	if err != nil {
+		return "", fmt.Errorf("run %s %s: %s (%s)",
+			cmd.Path, strings.Join(cmd.Args, " "), stderr.String(), err)
+	}
+
+	return stdout.String(), err
+}

plugins/inputs/ipmi_sensor/connection.go

@@ -0,0 +1,89 @@
+package ipmi_sensor
+
+import (
+	"fmt"
+	"net"
+	"strconv"
+	"strings"
+)
+
+// Connection properties for a Client
+type Connection struct {
+	Hostname  string
+	Username  string
+	Password  string
+	Path      string
+	Port      int
+	Interface string
+}
+
+func NewConnection(server string) *Connection {
+	conn := &Connection{}
+	inx1 := strings.Index(server, "@")
+	inx2 := strings.Index(server, "(")
+	inx3 := strings.Index(server, ")")
+
+	connstr := server
+
+	if inx1 > 0 {
+		security := server[0:inx1]
+		connstr = server[inx1+1 : len(server)]
+		up := strings.SplitN(security, ":", 2)
+		conn.Username = up[0]
+		conn.Password = up[1]
+	}
+
+	if inx2 > 0 {
+		inx2 = strings.Index(connstr, "(")
+		inx3 = strings.Index(connstr, ")")
+
+		conn.Interface = connstr[0:inx2]
+		conn.Hostname = connstr[inx2+1 : inx3]
+	}
+
+	return conn
+}
+
+func (t *Connection) options() []string {
+	intf := t.Interface
+	if intf == "" {
+		intf = "lan"
+	}
+
+	options := []string{
+		"-H", t.Hostname,
+		"-U", t.Username,
+		"-P", t.Password,
+		"-I", intf,
+	}
+
+	if t.Port != 0 {
+		options = append(options, "-p", strconv.Itoa(t.Port))
+	}
+
+	return options
+}
+
+// RemoteIP returns the remote (bmc) IP address of the Connection
+func (c *Connection) RemoteIP() string {
+	if net.ParseIP(c.Hostname) == nil {
+		addrs, err := net.LookupHost(c.Hostname)
+		if err != nil && len(addrs) > 0 {
+			return addrs[0]
+		}
+	}
+	return c.Hostname
+}
+
+// LocalIP returns the local (client) IP address of the Connection
+func (c *Connection) LocalIP() string {
+	conn, err := net.Dial("udp", fmt.Sprintf("%s:%d", c.Hostname, c.Port))
+	if err != nil {
+		// don't bother returning an error, since this value will never
+		// make it to the bmc if we can't connect to it.
+		return c.Hostname
+	}
+	_ = conn.Close()
+	host, _, _ := net.SplitHostPort(conn.LocalAddr().String())
+	return host
+}

plugins/inputs/ipmi_sensor/ipmi.go

@@ -0,0 +1,129 @@
+package ipmi_sensor
+
+import (
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/inputs"
+)
+
+type Ipmi struct {
+	Servers []string
+	runner  Runner
+}
+
+var sampleConfig = `
+  ## specify servers via a url matching:
+  ##  [username[:password]@][protocol[(address)]]
+  ##  e.g.
+  ##    root:passwd@lan(127.0.0.1)
+  ##
+  servers = ["USERID:PASSW0RD@lan(192.168.1.1)"]
+`
+
+func NewIpmi() *Ipmi {
+	return &Ipmi{
+		runner: CommandRunner{},
+	}
+}
+
+func (m *Ipmi) SampleConfig() string {
+	return sampleConfig
+}
+
+func (m *Ipmi) Description() string {
+	return "Read metrics from one or many bare metal servers"
+}
+
+func (m *Ipmi) Gather(acc telegraf.Accumulator) error {
+	if m.runner == nil {
+		m.runner = CommandRunner{}
+	}
+	for _, serv := range m.Servers {
+		err := m.gatherServer(serv, acc)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (m *Ipmi) gatherServer(serv string, acc telegraf.Accumulator) error {
+	conn := NewConnection(serv)
+
+	res, err := m.runner.Run(conn, "sdr")
+	if err != nil {
+		return err
+	}
+
+	// each line will look something like
+	// Planar VBAT      | 3.05 Volts        | ok
+	lines := strings.Split(res, "\n")
+	for i := 0; i < len(lines); i++ {
+		vals := strings.Split(lines[i], "|")
+		if len(vals) != 3 {
+			continue
+		}
+
+		tags := map[string]string{
+			"server": conn.Hostname,
+			"name":   transform(vals[0]),
+		}
+
+		fields := make(map[string]interface{})
+		if strings.EqualFold("ok", trim(vals[2])) {
+			fields["status"] = 1
+		} else {
+			fields["status"] = 0
+		}
+
+		val1 := trim(vals[1])
+
+		if strings.Index(val1, " ") > 0 {
+			// split middle column into value and unit
+			valunit := strings.SplitN(val1, " ", 2)
+			fields["value"] = Atofloat(valunit[0])
+			if len(valunit) > 1 {
+				tags["unit"] = transform(valunit[1])
+			}
+		} else {
+			fields["value"] = 0.0
+		}
+
+		acc.AddFields("ipmi_sensor", fields, tags, time.Now())
+	}
+
+	return nil
+}
+
+type Runner interface {
+	Run(conn *Connection, args ...string) (string, error)
+}
+
+func Atofloat(val string) float64 {
+	f, err := strconv.ParseFloat(val, 64)
+	if err != nil {
+		return 0.0
+	} else {
+		return f
+	}
+}
+
+func trim(s string) string {
+	return strings.TrimSpace(s)
+}
+
+func transform(s string) string {
+	s = trim(s)
+	s = strings.ToLower(s)
+	return strings.Replace(s, " ", "_", -1)
+}
+
+func init() {
+	inputs.Add("ipmi_sensor", func() telegraf.Input {
+		return &Ipmi{}
+	})
+}

plugins/inputs/ipmi_sensor/ipmi_test.go

@@ -0,0 +1,275 @@
+package ipmi_sensor
+
+import (
+	"testing"
+
+	"github.com/influxdata/telegraf/testutil"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+const serv = "USERID:PASSW0RD@lan(192.168.1.1)"
+
+const cmdReturn = `
+Ambient Temp     | 20 degrees C      | ok
+Altitude         | 80 feet           | ok
+Avg Power        | 210 Watts         | ok
+Planar 3.3V      | 3.29 Volts        | ok
+Planar 5V        | 4.90 Volts        | ok
+Planar 12V       | 12.04 Volts       | ok
+Planar VBAT      | 3.05 Volts        | ok
+Fan 1A Tach      | 2610 RPM          | ok
+Fan 1B Tach      | 1775 RPM          | ok
+Fan 2A Tach      | 2001 RPM          | ok
+Fan 2B Tach      | 1275 RPM          | ok
+Fan 3A Tach      | 2929 RPM          | ok
+Fan 3B Tach      | 2125 RPM          | ok
+Fan 1            | 0x00              | ok
+Fan 2            | 0x00              | ok
+Fan 3            | 0x00              | ok
+Front Panel      | 0x00              | ok
+Video USB        | 0x00              | ok
+DASD Backplane 1 | 0x00              | ok
+SAS Riser        | 0x00              | ok
+PCI Riser 1      | 0x00              | ok
+PCI Riser 2      | 0x00              | ok
+CPU 1            | 0x00              | ok
+CPU 2            | 0x00              | ok
+All CPUs         | 0x00              | ok
+One of The CPUs  | 0x00              | ok
+IOH Temp Status  | 0x00              | ok
+CPU 1 OverTemp   | 0x00              | ok
+CPU 2 OverTemp   | 0x00              | ok
+CPU Fault Reboot | 0x00              | ok
+Aux Log          | 0x00              | ok
+NMI State        | 0x00              | ok
+ABR Status       | 0x00              | ok
+Firmware Error   | 0x00              | ok
+PCIs             | 0x00              | ok
+CPUs             | 0x00              | ok
+DIMMs            | 0x00              | ok
+Sys Board Fault  | 0x00              | ok
+Power Supply 1   | 0x00              | ok
+Power Supply 2   | 0x00              | ok
+PS 1 Fan Fault   | 0x00              | ok
+PS 2 Fan Fault   | 0x00              | ok
+VT Fault         | 0x00              | ok
+Pwr Rail A Fault | 0x00              | ok
+Pwr Rail B Fault | 0x00              | ok
+Pwr Rail C Fault | 0x00              | ok
+Pwr Rail D Fault | 0x00              | ok
+Pwr Rail E Fault | 0x00              | ok
+PS 1 Therm Fault | 0x00              | ok
+PS 2 Therm Fault | 0x00              | ok
+PS1 12V OV Fault | 0x00              | ok
+PS2 12V OV Fault | 0x00              | ok
+PS1 12V UV Fault | 0x00              | ok
+PS2 12V UV Fault | 0x00              | ok
+PS1 12V OC Fault | 0x00              | ok
+PS2 12V OC Fault | 0x00              | ok
+PS 1 VCO Fault   | 0x00              | ok
+PS 2 VCO Fault   | 0x00              | ok
+Power Unit       | 0x00              | ok
+Cooling Zone 1   | 0x00              | ok
+Cooling Zone 2   | 0x00              | ok
+Cooling Zone 3   | 0x00              | ok
+Drive 0          | 0x00              | ok
+Drive 1          | 0x00              | ok
+Drive 2          | 0x00              | ok
+Drive 3          | 0x00              | ok
+Drive 4          | 0x00              | ok
+Drive 5          | 0x00              | ok
+Drive 6          | 0x00              | ok
+Drive 7          | 0x00              | ok
+Drive 8          | 0x00              | ok
+Drive 9          | 0x00              | ok
+Drive 10         | 0x00              | ok
+Drive 11         | 0x00              | ok
+Drive 12         | 0x00              | ok
+Drive 13         | 0x00              | ok
+Drive 14         | 0x00              | ok
+Drive 15         | 0x00              | ok
+All DIMMS        | 0x00              | ok
+One of the DIMMs | 0x00              | ok
+DIMM 1           | 0x00              | ok
+DIMM 2           | 0x00              | ok
+DIMM 3           | 0x00              | ok
+DIMM 4           | 0x00              | ok
+DIMM 5           | 0x00              | ok
+DIMM 6           | 0x00              | ok
+DIMM 7           | 0x00              | ok
+DIMM 8           | 0x00              | ok
+DIMM 9           | 0x00              | ok
+DIMM 10          | 0x00              | ok
+DIMM 11          | 0x00              | ok
+DIMM 12          | 0x00              | ok
+DIMM 13          | 0x00              | ok
+DIMM 14          | 0x00              | ok
+DIMM 15          | 0x00              | ok
+DIMM 16          | 0x00              | ok
+DIMM 17          | 0x00              | ok
+DIMM 18          | 0x00              | ok
+DIMM 1 Temp      | 0x00              | ok
+DIMM 2 Temp      | 0x00              | ok
+DIMM 3 Temp      | 0x00              | ok
+DIMM 4 Temp      | 0x00              | ok
+DIMM 5 Temp      | 0x00              | ok
+DIMM 6 Temp      | 0x00              | ok
+DIMM 7 Temp      | 0x00              | ok
+DIMM 8 Temp      | 0x00              | ok
+DIMM 9 Temp      | 0x00              | ok
+DIMM 10 Temp     | 0x00              | ok
+DIMM 11 Temp     | 0x00              | ok
+DIMM 12 Temp     | 0x00              | ok
+DIMM 13 Temp     | 0x00              | ok
+DIMM 14 Temp     | 0x00              | ok
+DIMM 15 Temp     | 0x00              | ok
+DIMM 16 Temp     | 0x00              | ok
+DIMM 17 Temp     | 0x00              | ok
+DIMM 18 Temp     | 0x00              | ok
+PCI 1            | 0x00              | ok
+PCI 2            | 0x00              | ok
+PCI 3            | 0x00              | ok
+PCI 4            | 0x00              | ok
+All PCI Error    | 0x00              | ok
+One of PCI Error | 0x00              | ok
+IPMI Watchdog    | 0x00              | ok
+Host Power       | 0x00              | ok
+DASD Backplane 2 | 0x00              | ok
+DASD Backplane 3 | Not Readable      | ns
+DASD Backplane 4 | Not Readable      | ns
+Backup Memory    | 0x00              | ok
+Progress         | 0x00              | ok
+Planar Fault     | 0x00              | ok
+SEL Fullness     | 0x00              | ok
+PCI 5            | 0x00              | ok
+OS RealTime Mod  | 0x00              | ok
+`
+
+type runnerMock struct {
+	out string
+	err error
+}
+
+func newRunnerMock(out string, err error) Runner {
+	return &runnerMock{
+		out: out,
+		err: err,
+	}
+}
+
+func (r runnerMock) Run(conn *Connection, args ...string) (out string, err error) {
+	if r.err != nil {
+		return out, r.err
+	}
+	return r.out, nil
+}
+
+func TestIpmi(t *testing.T) {
+	i := &Ipmi{
+		Servers: []string{"USERID:PASSW0RD@lan(192.168.1.1)"},
+		runner:  newRunnerMock(cmdReturn, nil),
+	}
+
+	var acc testutil.Accumulator
+
+	err := i.Gather(&acc)
+
+	require.NoError(t, err)
+
+	assert.Equal(t, acc.NFields(), 266, "non-numeric measurements should be ignored")
+
+	var tests = []struct {
+		fields map[string]interface{}
+		tags   map[string]string
+	}{
+		{
+			map[string]interface{}{
+				"value":  float64(20),
+				"status": int(1),
+			},
+			map[string]string{
+				"name":   "ambient_temp",
+				"server": "192.168.1.1",
+				"unit":   "degrees_c",
+			},
+		},
+		{
+			map[string]interface{}{
+				"value":  float64(80),
+				"status": int(1),
+			},
+			map[string]string{
+				"name":   "altitude",
+				"server": "192.168.1.1",
+				"unit":   "feet",
+			},
+		},
+		{
+			map[string]interface{}{
+				"value":  float64(210),
+				"status": int(1),
+			},
+			map[string]string{
+				"name":   "avg_power",
+				"server": "192.168.1.1",
+				"unit":   "watts",
+			},
+		},
+		{
+			map[string]interface{}{
+				"value":  float64(4.9),
+				"status": int(1),
+			},
+			map[string]string{
+				"name":   "planar_5v",
+				"server": "192.168.1.1",
+				"unit":   "volts",
+			},
+		},
+		{
+			map[string]interface{}{
+				"value":  float64(3.05),
+				"status": int(1),
+			},
+			map[string]string{
+				"name":   "planar_vbat",
+				"server": "192.168.1.1",
+				"unit":   "volts",
+			},
+		},
+		{
+			map[string]interface{}{
+				"value":  float64(2610),
+				"status": int(1),
+			},
+			map[string]string{
+				"name":   "fan_1a_tach",
+				"server": "192.168.1.1",
+				"unit":   "rpm",
+			},
+		},
+		{
+			map[string]interface{}{
+				"value":  float64(1775),
+				"status": int(1),
+			},
+			map[string]string{
+				"name":   "fan_1b_tach",
+				"server": "192.168.1.1",
+				"unit":   "rpm",
+			},
+		},
+	}
+
+	for _, test := range tests {
+		acc.AssertContainsTaggedFields(t, "ipmi_sensor", test.fields, test.tags)
+	}
+}
+
+func TestIpmiConnection(t *testing.T) {
+	conn := NewConnection(serv)
+	assert.Equal(t, "USERID", conn.Username)
+	assert.Equal(t, "lan", conn.Interface)
+
+}

plugins/inputs/jolokia/README.md

@@ -1,16 +1,28 @@
 # Telegraf plugin: Jolokia
 
-#### Plugin arguments:
+#### Configuration
-- **context** string: Context root used of jolokia url
+
-- **servers** []Server: List of servers
+```toml
-  + **name** string: Server's logical name
+[[inputs.jolokia]]
-  + **host** string: Server's ip address or hostname
+  ## This is the context root used to compose the jolokia url
-  + **port** string: Server's listening port
+  context = "/jolokia/read"
-- **metrics** []Metric
+
-  + **name** string: Name of the measure
+  ## List of servers exposing jolokia read service
-  + **jmx** string: Jmx path that identifies mbeans attributes
+  [[inputs.jolokia.servers]]
-  + **pass** []string: Attributes to retain when collecting values
+    name = "stable"
-  + **drop** []string: Attributes to drop when collecting values
+    host = "192.168.103.2"
+    port = "8180"
+    # username = "myuser"
+    # password = "mypassword"
+
+  ## List of metrics collected on above servers
+  ## Each metric consists in a name, a jmx path and either
+  ## a pass or drop slice attribute.
+  ## This collect all heap memory usage metrics.
+  [[inputs.jolokia.metrics]]
+    name = "heap_memory_usage"
+    jmx  = "/java.lang:type=Memory/HeapMemoryUsage"
+```
 
 #### Description
 
@@ -21,31 +33,3 @@ See: https://jolokia.org/
 
 # Measurements:
 Jolokia plugin produces one measure for each metric configured, adding Server's `name`, `host` and `port` as tags.
-
-Given a configuration like:
-
-```ini
-[jolokia]
-
-[[jolokia.servers]]
-  name = "as-service-1"
-  host = "127.0.0.1"
-  port = "8080"
-
-[[jolokia.servers]]
-  name = "as-service-2"
-  host = "127.0.0.1"
-  port = "8180"
-
-[[jolokia.metrics]]
-  name = "heap_memory_usage"
-  jmx  = "/java.lang:type=Memory/HeapMemoryUsage"
-  pass = ["used", "max"]
-```
-
-The collected metrics will be:
-
-```
-jolokia_heap_memory_usage name=as-service-1,host=127.0.0.1,port=8080 used=xxx,max=yyy
-jolokia_heap_memory_usage name=as-service-2,host=127.0.0.1,port=8180 used=vvv,max=zzz
-```

plugins/inputs/jolokia/jolokia.go

@@ -7,6 +7,7 @@ import (
 	"io/ioutil"
 	"net/http"
 	"net/url"
+	"time"
 
 	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/plugins/inputs"
@@ -160,6 +161,11 @@ func (j *Jolokia) Gather(acc telegraf.Accumulator) error {
 
 func init() {
 	inputs.Add("jolokia", func() telegraf.Input {
-		return &Jolokia{jClient: &JolokiaClientImpl{client: &http.Client{}}}
+		tr := &http.Transport{ResponseHeaderTimeout: time.Duration(3 * time.Second)}
+		client := &http.Client{
+			Transport: tr,
+			Timeout:   time.Duration(4 * time.Second),
+		}
+		return &Jolokia{jClient: &JolokiaClientImpl{client: client}}
 	})
 }

plugins/inputs/kafka_consumer/README.md

@@ -22,7 +22,8 @@ from the same topic in parallel.
   ## Offset (must be either "oldest" or "newest")
   offset = "oldest"
 
-  ## Data format to consume. This can be "json", "influx" or "graphite"
+  ## Data format to consume. 
+
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md

plugins/inputs/kafka_consumer/kafka_consumer.go

@@ -14,10 +14,11 @@ import (
 )
 
 type Kafka struct {
-	ConsumerGroup  string
+	ConsumerGroup   string
-	Topics         []string
+	Topics          []string
-	ZookeeperPeers []string
+	ZookeeperPeers  []string
-	Consumer       *consumergroup.ConsumerGroup
+	ZookeeperChroot string
+	Consumer        *consumergroup.ConsumerGroup
 
 	// Legacy metric buffer support
 	MetricBuffer int
@@ -48,12 +49,14 @@ var sampleConfig = `
   topics = ["telegraf"]
   ## an array of Zookeeper connection strings
   zookeeper_peers = ["localhost:2181"]
+  ## Zookeeper Chroot
+  zookeeper_chroot = "/"
   ## the name of the consumer group
   consumer_group = "telegraf_metrics_consumers"
   ## Offset (must be either "oldest" or "newest")
   offset = "oldest"
 
-  ## Data format to consume. This can be "json", "influx" or "graphite"
+  ## Data format to consume.
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
@@ -80,6 +83,7 @@ func (k *Kafka) Start(acc telegraf.Accumulator) error {
 	k.acc = acc
 
 	config := consumergroup.NewConfig()
+	config.Zookeeper.Chroot = k.ZookeeperChroot
 	switch strings.ToLower(k.Offset) {
 	case "oldest", "":
 		config.Offsets.Initial = sarama.OffsetOldest

plugins/inputs/mailchimp/chimp_api.go

@@ -10,6 +10,7 @@ import (
 	"net/url"
 	"regexp"
 	"sync"
+	"time"
 )
 
 const (
@@ -120,7 +121,10 @@ func (a *ChimpAPI) GetReport(campaignID string) (Report, error) {
 }
 
 func runChimp(api *ChimpAPI, params ReportsParams) ([]byte, error) {
-	client := &http.Client{Transport: api.Transport}
+	client := &http.Client{
+		Transport: api.Transport,
+		Timeout:   time.Duration(4 * time.Second),
+	}
 
 	var b bytes.Buffer
 	req, err := http.NewRequest("GET", api.url.String(), &b)

plugins/inputs/memcached/memcached.go

@@ -94,14 +94,15 @@ func (m *Memcached) gatherServer(
 	acc telegraf.Accumulator,
 ) error {
 	var conn net.Conn
+	var err error
 	if unix {
-		conn, err := net.DialTimeout("unix", address, defaultTimeout)
+		conn, err = net.DialTimeout("unix", address, defaultTimeout)
 		if err != nil {
 			return err
 		}
 		defer conn.Close()
 	} else {
-		_, _, err := net.SplitHostPort(address)
+		_, _, err = net.SplitHostPort(address)
 		if err != nil {
 			address = address + ":11211"
 		}
@@ -113,6 +114,10 @@ func (m *Memcached) gatherServer(
 		defer conn.Close()
 	}
 
+	if conn == nil {
+		return fmt.Errorf("Failed to create net connection")
+	}
+
 	// Extend connection
 	conn.SetDeadline(time.Now().Add(defaultTimeout))
 

plugins/inputs/mesos/mesos.go

@@ -10,6 +10,7 @@ import (
 	"strconv"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/plugins/inputs"
@@ -33,7 +34,16 @@ var sampleConfig = `
   # A list of Mesos masters, default value is localhost:5050.
   masters = ["localhost:5050"]
   # Metrics groups to be collected, by default, all enabled.
-  master_collections = ["resources","master","system","slaves","frameworks","messages","evqueue","registrar"]
+  master_collections = [
+    "resources",
+    "master",
+    "system",
+    "slaves",
+    "frameworks",
+    "messages",
+    "evqueue",
+    "registrar",
+  ]
 `
 
 // SampleConfig returns a sample configuration block
@@ -261,6 +271,15 @@ func (m *Mesos) removeGroup(j *map[string]interface{}) {
 	}
 }
 
+var tr = &http.Transport{
+	ResponseHeaderTimeout: time.Duration(3 * time.Second),
+}
+
+var client = &http.Client{
+	Transport: tr,
+	Timeout:   time.Duration(4 * time.Second),
+}
+
 // This should not belong to the object
 func (m *Mesos) gatherMetrics(a string, acc telegraf.Accumulator) error {
 	var jsonOut map[string]interface{}
@@ -282,7 +301,7 @@ func (m *Mesos) gatherMetrics(a string, acc telegraf.Accumulator) error {
 
 	ts := strconv.Itoa(m.Timeout) + "ms"
 
-	resp, err := http.Get("http://" + a + "/metrics/snapshot?timeout=" + ts)
+	resp, err := client.Get("http://" + a + "/metrics/snapshot?timeout=" + ts)
 
 	if err != nil {
 		return err

plugins/inputs/mongodb/mongodb.go

@@ -103,7 +103,7 @@ func (m *MongoDB) gatherServer(server *Server, acc telegraf.Accumulator) error {
 				dialAddrs[0], err.Error())
 		}
 		dialInfo.Direct = true
-		dialInfo.Timeout = time.Duration(10) * time.Second
+		dialInfo.Timeout = 5 * time.Second
 
 		if m.Ssl.Enabled {
 			tlsConfig := &tls.Config{}

plugins/inputs/mongodb/mongodb_test.go

@@ -43,7 +43,7 @@ func testSetup(m *testing.M) {
 		log.Fatalf("Unable to parse URL (%s), %s\n", dialAddrs[0], err.Error())
 	}
 	dialInfo.Direct = true
-	dialInfo.Timeout = time.Duration(10) * time.Second
+	dialInfo.Timeout = 5 * time.Second
 	sess, err := mgo.DialWithInfo(dialInfo)
 	if err != nil {
 		log.Fatalf("Unable to connect to MongoDB, %s\n", err.Error())

plugins/inputs/mqtt_consumer/README.md

@@ -35,7 +35,7 @@ The plugin expects messages in the
   ## Use SSL but skip chain & host verification
   # insecure_skip_verify = false
 
-  ## Data format to consume. This can be "json", "influx" or "graphite"
+  ## Data format to consume.
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md

plugins/inputs/mqtt_consumer/mqtt_consumer.go

@@ -11,7 +11,7 @@ import (
 	"github.com/influxdata/telegraf/plugins/inputs"
 	"github.com/influxdata/telegraf/plugins/parsers"
 
-	"git.eclipse.org/gitroot/paho/org.eclipse.paho.mqtt.golang.git"
+	"github.com/eclipse/paho.mqtt.golang"
 )
 
 type MQTTConsumer struct {
@@ -26,6 +26,9 @@ type MQTTConsumer struct {
 	// Legacy metric buffer support
 	MetricBuffer int
 
+	PersistentSession bool
+	ClientID          string `toml:"client_id"`
+
 	// Path to CA file
 	SSLCA string `toml:"ssl_ca"`
 	// Path to host cert file
@@ -36,7 +39,7 @@ type MQTTConsumer struct {
 	InsecureSkipVerify bool
 
 	sync.Mutex
-	client *mqtt.Client
+	client mqtt.Client
 	// channel of all incoming raw mqtt messages
 	in   chan mqtt.Message
 	done chan struct{}
@@ -57,6 +60,13 @@ var sampleConfig = `
     "sensors/#",
   ]
 
+  # if true, messages that can't be delivered while the subscriber is offline
+  # will be delivered when it comes back (such as on service restart).
+  # NOTE: if true, client_id MUST be set
+  persistent_session = false
+  # If empty, a random client ID will be generated.
+  client_id = ""
+
   ## username and password to connect MQTT server.
   # username = "telegraf"
   # password = "metricsmetricsmetricsmetrics"
@@ -68,7 +78,7 @@ var sampleConfig = `
   ## Use SSL but skip chain & host verification
   # insecure_skip_verify = false
 
-  ## Data format to consume. This can be "json", "influx" or "graphite"
+  ## Data format to consume.
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
@@ -91,6 +101,11 @@ func (m *MQTTConsumer) Start(acc telegraf.Accumulator) error {
 	m.Lock()
 	defer m.Unlock()
 
+	if m.PersistentSession && m.ClientID == "" {
+		return fmt.Errorf("ERROR MQTT Consumer: When using persistent_session" +
+			" = true, you MUST also set client_id")
+	}
+
 	m.acc = acc
 	if m.QoS > 2 || m.QoS < 0 {
 		return fmt.Errorf("MQTT Consumer, invalid QoS value: %d", m.QoS)
@@ -148,7 +163,7 @@ func (m *MQTTConsumer) receiver() {
 	}
 }
 
-func (m *MQTTConsumer) recvMessage(_ *mqtt.Client, msg mqtt.Message) {
+func (m *MQTTConsumer) recvMessage(_ mqtt.Client, msg mqtt.Message) {
 	m.in <- msg
 }
 
@@ -166,7 +181,11 @@ func (m *MQTTConsumer) Gather(acc telegraf.Accumulator) error {
 func (m *MQTTConsumer) createOpts() (*mqtt.ClientOptions, error) {
 	opts := mqtt.NewClientOptions()
 
-	opts.SetClientID("Telegraf-Consumer-" + internal.RandomString(5))
+	if m.ClientID == "" {
+		opts.SetClientID("Telegraf-Consumer-" + internal.RandomString(5))
+	} else {
+		opts.SetClientID(m.ClientID)
+	}
 
 	tlsCfg, err := internal.GetTLSConfig(
 		m.SSLCert, m.SSLKey, m.SSLCA, m.InsecureSkipVerify)
@@ -181,7 +200,7 @@ func (m *MQTTConsumer) createOpts() (*mqtt.ClientOptions, error) {
 	}
 
 	user := m.Username
-	if user == "" {
+	if user != "" {
 		opts.SetUsername(user)
 	}
 	password := m.Password
@@ -199,6 +218,7 @@ func (m *MQTTConsumer) createOpts() (*mqtt.ClientOptions, error) {
 	}
 	opts.SetAutoReconnect(true)
 	opts.SetKeepAlive(time.Second * 60)
+	opts.SetCleanSession(!m.PersistentSession)
 	return opts, nil
 }
 

plugins/inputs/mqtt_consumer/mqtt_consumer_test.go

@@ -7,7 +7,9 @@ import (
 	"github.com/influxdata/telegraf/plugins/parsers"
 	"github.com/influxdata/telegraf/testutil"
 
-	"git.eclipse.org/gitroot/paho/org.eclipse.paho.mqtt.golang.git"
+	"github.com/stretchr/testify/assert"
+
+	"github.com/eclipse/paho.mqtt.golang"
 )
 
 const (
@@ -28,6 +30,52 @@ func newTestMQTTConsumer() (*MQTTConsumer, chan mqtt.Message) {
 	return n, in
 }
 
+// Test that default client has random ID
+func TestRandomClientID(t *testing.T) {
+	m1 := &MQTTConsumer{
+		Servers: []string{"localhost:1883"}}
+	opts, err := m1.createOpts()
+	assert.NoError(t, err)
+
+	m2 := &MQTTConsumer{
+		Servers: []string{"localhost:1883"}}
+	opts2, err2 := m2.createOpts()
+	assert.NoError(t, err2)
+
+	assert.NotEqual(t, opts.ClientID, opts2.ClientID)
+}
+
+// Test that default client has random ID
+func TestClientID(t *testing.T) {
+	m1 := &MQTTConsumer{
+		Servers:  []string{"localhost:1883"},
+		ClientID: "telegraf-test",
+	}
+	opts, err := m1.createOpts()
+	assert.NoError(t, err)
+
+	m2 := &MQTTConsumer{
+		Servers:  []string{"localhost:1883"},
+		ClientID: "telegraf-test",
+	}
+	opts2, err2 := m2.createOpts()
+	assert.NoError(t, err2)
+
+	assert.Equal(t, "telegraf-test", opts2.ClientID)
+	assert.Equal(t, "telegraf-test", opts.ClientID)
+}
+
+// Test that Start() fails if client ID is not set but persistent is
+func TestPersistentClientIDFail(t *testing.T) {
+	m1 := &MQTTConsumer{
+		Servers:           []string{"localhost:1883"},
+		PersistentSession: true,
+	}
+	acc := testutil.Accumulator{}
+	err := m1.Start(&acc)
+	assert.Error(t, err)
+}
+
 // Test that the parser parses NATS messages into metrics
 func TestRunParser(t *testing.T) {
 	n, in := newTestMQTTConsumer()

plugins/inputs/mysql/mysql.go

@@ -2,8 +2,10 @@ package mysql
 
 import (
 	"database/sql"
+	"net/url"
 	"strconv"
 	"strings"
+	"time"
 
 	_ "github.com/go-sql-driver/mysql"
 	"github.com/influxdata/telegraf"
@@ -26,6 +28,8 @@ var sampleConfig = `
   servers = ["tcp(127.0.0.1:3306)/"]
 `
 
+var defaultTimeout = time.Second * time.Duration(5)
+
 func (m *Mysql) SampleConfig() string {
 	return sampleConfig
 }
@@ -122,6 +126,10 @@ func (m *Mysql) gatherServer(serv string, acc telegraf.Accumulator) error {
 		serv = ""
 	}
 
+	serv, err := dsnAddTimeout(serv)
+	if err != nil {
+		return err
+	}
 	db, err := sql.Open("mysql", serv)
 	if err != nil {
 		return err
@@ -207,6 +215,27 @@ func (m *Mysql) gatherServer(serv string, acc telegraf.Accumulator) error {
 	return nil
 }
 
+func dsnAddTimeout(dsn string) (string, error) {
+
+	// DSN "?timeout=5s" is not valid, but "/?timeout=5s" is valid ("" and "/"
+	// are the same DSN)
+	if dsn == "" {
+		dsn = "/"
+	}
+	u, err := url.Parse(dsn)
+	if err != nil {
+		return "", err
+	}
+	v := u.Query()
+
+	// Only override timeout if not already defined
+	if _, ok := v["timeout"]; ok == false {
+		v.Add("timeout", defaultTimeout.String())
+		u.RawQuery = v.Encode()
+	}
+	return u.String(), nil
+}
+
 func init() {
 	inputs.Add("mysql", func() telegraf.Input {
 		return &Mysql{}

plugins/inputs/mysql/mysql_test.go

@@ -84,3 +84,34 @@ func TestMysqlParseDSN(t *testing.T) {
 		}
 	}
 }
+
+func TestMysqlDNSAddTimeout(t *testing.T) {
+	tests := []struct {
+		input  string
+		output string
+	}{
+		{
+			"",
+			"/?timeout=5s",
+		},
+		{
+			"tcp(192.168.1.1:3306)/",
+			"tcp(192.168.1.1:3306)/?timeout=5s",
+		},
+		{
+			"root:passwd@tcp(192.168.1.1:3306)/?tls=false",
+			"root:passwd@tcp(192.168.1.1:3306)/?timeout=5s&tls=false",
+		},
+		{
+			"root:passwd@tcp(192.168.1.1:3306)/?tls=false&timeout=10s",
+			"root:passwd@tcp(192.168.1.1:3306)/?tls=false&timeout=10s",
+		},
+	}
+
+	for _, test := range tests {
+		output, _ := dsnAddTimeout(test.input)
+		if output != test.output {
+			t.Errorf("Expected %s, got %s\n", test.output, output)
+		}
+	}
+}

plugins/inputs/nats_consumer/README.md

@@ -23,7 +23,8 @@ from a NATS cluster in parallel.
   ## Maximum number of metrics to buffer between collection intervals
   metric_buffer = 100000
 
-  ## Data format to consume. This can be "json", "influx" or "graphite"
+  ## Data format to consume. 
+
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md

plugins/inputs/nats_consumer/nats_consumer.go

@@ -55,7 +55,7 @@ var sampleConfig = `
   ## name a queue group
   queue_group = "telegraf_consumers"
 
-  ## Data format to consume. This can be "json", "influx" or "graphite"
+  ## Data format to consume.
   ## Each data format has it's own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md

plugins/inputs/net_response/README.md

@@ -52,7 +52,7 @@ It can also check response text.
 ### Tags:
 
 - All measurements have the following tags:
-    - host
+    - server
     - port
     - protocol
 
@@ -60,7 +60,7 @@ It can also check response text.
 
 ```
 $ ./telegraf -config telegraf.conf -input-filter net_response -test
-net_response,host=127.0.0.1,port=22,protocol=tcp response_time=0.18070360500000002,string_found=true 1454785464182527094
+net_response,server=192.168.2.2,port=22,protocol=tcp response_time=0.18070360500000002,string_found=true 1454785464182527094
-net_response,host=127.0.0.1,port=2222,protocol=tcp response_time=1.090124776,string_found=false 1454784433658942325
+net_response,server=192.168.2.2,port=2222,protocol=tcp response_time=1.090124776,string_found=false 1454784433658942325
 
 ```

plugins/inputs/net_response/net_response.go

@@ -169,7 +169,7 @@ func (c *NetResponse) Gather(acc telegraf.Accumulator) error {
 		return errors.New("Bad port")
 	}
 	// Prepare data
-	tags := map[string]string{"host": host, "port": port}
+	tags := map[string]string{"server": host, "port": port}
 	var fields map[string]interface{}
 	// Gather data
 	if c.Protocol == "tcp" {

plugins/inputs/net_response/net_response_test.go

@@ -69,7 +69,7 @@ func TestTCPOK1(t *testing.T) {
 			"string_found":  true,
 			"response_time": 1.0,
 		},
-		map[string]string{"host": "127.0.0.1",
+		map[string]string{"server": "127.0.0.1",
 			"port":     "2004",
 			"protocol": "tcp",
 		},
@@ -109,7 +109,7 @@ func TestTCPOK2(t *testing.T) {
 			"string_found":  false,
 			"response_time": 1.0,
 		},
-		map[string]string{"host": "127.0.0.1",
+		map[string]string{"server": "127.0.0.1",
 			"port":     "2004",
 			"protocol": "tcp",
 		},
@@ -164,7 +164,7 @@ func TestUDPOK1(t *testing.T) {
 			"string_found":  true,
 			"response_time": 1.0,
 		},
-		map[string]string{"host": "127.0.0.1",
+		map[string]string{"server": "127.0.0.1",
 			"port":     "2004",
 			"protocol": "udp",
 		},

plugins/inputs/nginx/README.md

@@ -0,0 +1,47 @@
+# Telegraf Plugin: Nginx
+
+### Configuration:
+
+```
+# Read Nginx's basic status information (ngx_http_stub_status_module)
+[[inputs.nginx]]
+  ## An array of Nginx stub_status URI to gather stats.
+  urls = ["http://localhost/server_status"]
+```
+
+### Measurements & Fields:
+
+- Measurement
+    - accepts
+    - active
+    - handled
+    - reading
+    - requests
+    - waiting
+    - writing
+
+### Tags:
+
+- All measurements have the following tags:
+    - port
+    - server
+
+### Example Output:
+
+Using this configuration:
+```
+[[inputs.nginx]]
+  ## An array of Nginx stub_status URI to gather stats.
+  urls = ["http://localhost/status"]
+```
+
+When run with:
+```
+./telegraf -config telegraf.conf -input-filter nginx -test
+```
+
+It produces:
+```
+* Plugin: nginx, Collection 1
+> nginx,port=80,server=localhost accepts=605i,active=2i,handled=605i,reading=0i,requests=12132i,waiting=1i,writing=1i 1456690994701784331
+```

plugins/inputs/nginx/nginx.go

@@ -58,7 +58,10 @@ var tr = &http.Transport{
 	ResponseHeaderTimeout: time.Duration(3 * time.Second),
 }
 
-var client = &http.Client{Transport: tr}
+var client = &http.Client{
+	Transport: tr,
+	Timeout:   time.Duration(4 * time.Second),
+}
 
 func (n *Nginx) gatherUrl(addr *url.URL, acc telegraf.Accumulator) error {
 	resp, err := client.Get(addr.String())

plugins/inputs/nsq/nsq.go

@@ -84,7 +84,10 @@ var tr = &http.Transport{
 	ResponseHeaderTimeout: time.Duration(3 * time.Second),
 }
 
-var client = &http.Client{Transport: tr}
+var client = &http.Client{
+	Transport: tr,
+	Timeout:   time.Duration(4 * time.Second),
+}
 
 func (n *NSQ) gatherEndpoint(e string, acc telegraf.Accumulator) error {
 	u, err := buildURL(e)

plugins/inputs/ntpq/README.md

@@ -0,0 +1,60 @@
+# ntpq Input Plugin
+
+Get standard NTP query metrics, requires ntpq executable.
+
+Below is the documentation of the various headers returned from the NTP query
+command when running `ntpq -p`.
+
+- remote – The remote peer or server being synced to. “LOCAL” is this local host
+(included in case there are no remote peers or servers available);
+- refid – Where or what the remote peer or server is itself synchronised to;
+- st (stratum) – The remote peer or server Stratum
+- t (type) – Type (u: unicast or manycast client, b: broadcast or multicast client,
+l: local reference clock, s: symmetric peer, A: manycast server,
+B: broadcast server, M: multicast server, see “Automatic Server Discovery“);
+- when – When last polled (seconds ago, “h” hours ago, or “d” days ago);
+- poll – Polling frequency: rfc5905 suggests this ranges in NTPv4 from 4 (16s)
+to 17 (36h) (log2 seconds), however observation suggests the actual displayed
+value is seconds for a much smaller range of 64 (26) to 1024 (210) seconds;
+- reach – An 8-bit left-shift shift register value recording polls (bit set =
+successful, bit reset = fail) displayed in octal;
+- delay – Round trip communication delay to the remote peer or server (milliseconds);
+- offset – Mean offset (phase) in the times reported between this local host and
+the remote peer or server (RMS, milliseconds);
+- jitter – Mean deviation (jitter) in the time reported for that remote peer or
+server (RMS of difference of multiple time samples, milliseconds);
+
+### Configuration:
+
+```toml
+# Get standard NTP query metrics, requires ntpq executable
+[[inputs.ntpq]]
+  ## If false, set the -n ntpq flag. Can reduce metric gather times.
+  dns_lookup = true
+```
+
+### Measurements & Fields:
+
+- ntpq
+    - delay (float, milliseconds)
+    - jitter (float, milliseconds)
+    - offset (float, milliseconds)
+    - poll (int, seconds)
+    - reach (int)
+    - when (int, seconds)
+
+### Tags:
+
+- All measurements have the following tags:
+    - refid
+    - remote
+    - type
+    - stratum
+
+### Example Output:
+
+```
+$ telegraf -config ~/ws/telegraf.conf -input-filter ntpq -test
+* Plugin: ntpq, Collection 1
+> ntpq,refid=.GPSs.,remote=*time.apple.com,stratum=1,type=u delay=91.797,jitter=3.735,offset=12.841,poll=64i,reach=377i,when=35i 1457960478909556134
+```

plugins/inputs/ntpq/ntpq.go

@@ -0,0 +1,202 @@
+// +build !windows
+
+package ntpq
+
+import (
+	"bufio"
+	"bytes"
+	"log"
+	"os/exec"
+	"strconv"
+	"strings"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/inputs"
+)
+
+// Mapping of ntpq header names to tag keys
+var tagHeaders map[string]string = map[string]string{
+	"remote": "remote",
+	"refid":  "refid",
+	"st":     "stratum",
+	"t":      "type",
+}
+
+// Mapping of the ntpq tag key to the index in the command output
+var tagI map[string]int = map[string]int{
+	"remote":  -1,
+	"refid":   -1,
+	"stratum": -1,
+	"type":    -1,
+}
+
+// Mapping of float metrics to their index in the command output
+var floatI map[string]int = map[string]int{
+	"delay":  -1,
+	"offset": -1,
+	"jitter": -1,
+}
+
+// Mapping of int metrics to their index in the command output
+var intI map[string]int = map[string]int{
+	"when":  -1,
+	"poll":  -1,
+	"reach": -1,
+}
+
+type NTPQ struct {
+	runQ func() ([]byte, error)
+
+	DNSLookup bool `toml:"dns_lookup"`
+}
+
+func (n *NTPQ) Description() string {
+	return "Get standard NTP query metrics, requires ntpq executable."
+}
+
+func (n *NTPQ) SampleConfig() string {
+	return `
+  ## If false, set the -n ntpq flag. Can reduce metric gather time.
+  dns_lookup = true
+`
+}
+
+func (n *NTPQ) Gather(acc telegraf.Accumulator) error {
+	out, err := n.runQ()
+	if err != nil {
+		return err
+	}
+
+	lineCounter := 0
+	scanner := bufio.NewScanner(bytes.NewReader(out))
+	for scanner.Scan() {
+		fields := strings.Fields(scanner.Text())
+		if len(fields) < 2 {
+			continue
+		}
+
+		// If lineCounter == 0, then this is the header line
+		if lineCounter == 0 {
+			for i, field := range fields {
+				// Check if field is a tag:
+				if tagKey, ok := tagHeaders[field]; ok {
+					tagI[tagKey] = i
+					continue
+				}
+
+				// check if field is a float metric:
+				if _, ok := floatI[field]; ok {
+					floatI[field] = i
+					continue
+				}
+
+				// check if field is an int metric:
+				if _, ok := intI[field]; ok {
+					intI[field] = i
+					continue
+				}
+			}
+		} else {
+			tags := make(map[string]string)
+			mFields := make(map[string]interface{})
+
+			// Get tags from output
+			for key, index := range tagI {
+				if index == -1 {
+					continue
+				}
+				tags[key] = fields[index]
+			}
+
+			// Get integer metrics from output
+			for key, index := range intI {
+				if index == -1 {
+					continue
+				}
+
+				if key == "when" {
+					when := fields[index]
+					switch {
+					case strings.HasSuffix(when, "h"):
+						m, err := strconv.Atoi(strings.TrimSuffix(fields[index], "h"))
+						if err != nil {
+							log.Printf("ERROR ntpq: parsing int: %s", fields[index])
+							continue
+						}
+						// seconds in an hour
+						mFields[key] = int64(m) * 360
+						continue
+					case strings.HasSuffix(when, "d"):
+						m, err := strconv.Atoi(strings.TrimSuffix(fields[index], "d"))
+						if err != nil {
+							log.Printf("ERROR ntpq: parsing int: %s", fields[index])
+							continue
+						}
+						// seconds in a day
+						mFields[key] = int64(m) * 86400
+						continue
+					case strings.HasSuffix(when, "m"):
+						m, err := strconv.Atoi(strings.TrimSuffix(fields[index], "m"))
+						if err != nil {
+							log.Printf("ERROR ntpq: parsing int: %s", fields[index])
+							continue
+						}
+						// seconds in a day
+						mFields[key] = int64(m) * 60
+						continue
+					}
+				}
+
+				m, err := strconv.Atoi(fields[index])
+				if err != nil {
+					log.Printf("ERROR ntpq: parsing int: %s", fields[index])
+					continue
+				}
+				mFields[key] = int64(m)
+			}
+
+			// get float metrics from output
+			for key, index := range floatI {
+				if index == -1 {
+					continue
+				}
+
+				m, err := strconv.ParseFloat(fields[index], 64)
+				if err != nil {
+					log.Printf("ERROR ntpq: parsing float: %s", fields[index])
+					continue
+				}
+				mFields[key] = m
+			}
+
+			acc.AddFields("ntpq", mFields, tags)
+		}
+
+		lineCounter++
+	}
+	return nil
+}
+
+func (n *NTPQ) runq() ([]byte, error) {
+	bin, err := exec.LookPath("ntpq")
+	if err != nil {
+		return nil, err
+	}
+
+	var cmd *exec.Cmd
+	if n.DNSLookup {
+		cmd = exec.Command(bin, "-p")
+	} else {
+		cmd = exec.Command(bin, "-p", "-n")
+	}
+
+	return cmd.Output()
+}
+
+func init() {
+	inputs.Add("ntpq", func() telegraf.Input {
+		n := &NTPQ{}
+		n.runQ = n.runq
+		return n
+	})
+}

plugins/inputs/ntpq/ntpq_test.go

@@ -0,0 +1,422 @@
+// +build !windows
+
+package ntpq
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/influxdata/telegraf/testutil"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSingleNTPQ(t *testing.T) {
+	tt := tester{
+		ret: []byte(singleNTPQ),
+		err: nil,
+	}
+	n := &NTPQ{
+		runQ: tt.runqTest,
+	}
+
+	acc := testutil.Accumulator{}
+	assert.NoError(t, n.Gather(&acc))
+
+	fields := map[string]interface{}{
+		"when":   int64(101),
+		"poll":   int64(256),
+		"reach":  int64(37),
+		"delay":  float64(51.016),
+		"offset": float64(233.010),
+		"jitter": float64(17.462),
+	}
+	tags := map[string]string{
+		"remote":  "*uschi5-ntp-002.",
+		"refid":   "10.177.80.46",
+		"stratum": "2",
+		"type":    "u",
+	}
+	acc.AssertContainsTaggedFields(t, "ntpq", fields, tags)
+}
+
+func TestBadIntNTPQ(t *testing.T) {
+	tt := tester{
+		ret: []byte(badIntParseNTPQ),
+		err: nil,
+	}
+	n := &NTPQ{
+		runQ: tt.runqTest,
+	}
+
+	acc := testutil.Accumulator{}
+	assert.NoError(t, n.Gather(&acc))
+
+	fields := map[string]interface{}{
+		"when":   int64(101),
+		"reach":  int64(37),
+		"delay":  float64(51.016),
+		"offset": float64(233.010),
+		"jitter": float64(17.462),
+	}
+	tags := map[string]string{
+		"remote":  "*uschi5-ntp-002.",
+		"refid":   "10.177.80.46",
+		"stratum": "2",
+		"type":    "u",
+	}
+	acc.AssertContainsTaggedFields(t, "ntpq", fields, tags)
+}
+
+func TestBadFloatNTPQ(t *testing.T) {
+	tt := tester{
+		ret: []byte(badFloatParseNTPQ),
+		err: nil,
+	}
+	n := &NTPQ{
+		runQ: tt.runqTest,
+	}
+
+	acc := testutil.Accumulator{}
+	assert.NoError(t, n.Gather(&acc))
+
+	fields := map[string]interface{}{
+		"when":   int64(2),
+		"poll":   int64(256),
+		"reach":  int64(37),
+		"delay":  float64(51.016),
+		"jitter": float64(17.462),
+	}
+	tags := map[string]string{
+		"remote":  "*uschi5-ntp-002.",
+		"refid":   "10.177.80.46",
+		"stratum": "2",
+		"type":    "u",
+	}
+	acc.AssertContainsTaggedFields(t, "ntpq", fields, tags)
+}
+
+func TestDaysNTPQ(t *testing.T) {
+	tt := tester{
+		ret: []byte(whenDaysNTPQ),
+		err: nil,
+	}
+	n := &NTPQ{
+		runQ: tt.runqTest,
+	}
+
+	acc := testutil.Accumulator{}
+	assert.NoError(t, n.Gather(&acc))
+
+	fields := map[string]interface{}{
+		"when":   int64(172800),
+		"poll":   int64(256),
+		"reach":  int64(37),
+		"delay":  float64(51.016),
+		"offset": float64(233.010),
+		"jitter": float64(17.462),
+	}
+	tags := map[string]string{
+		"remote":  "*uschi5-ntp-002.",
+		"refid":   "10.177.80.46",
+		"stratum": "2",
+		"type":    "u",
+	}
+	acc.AssertContainsTaggedFields(t, "ntpq", fields, tags)
+}
+
+func TestHoursNTPQ(t *testing.T) {
+	tt := tester{
+		ret: []byte(whenHoursNTPQ),
+		err: nil,
+	}
+	n := &NTPQ{
+		runQ: tt.runqTest,
+	}
+
+	acc := testutil.Accumulator{}
+	assert.NoError(t, n.Gather(&acc))
+
+	fields := map[string]interface{}{
+		"when":   int64(720),
+		"poll":   int64(256),
+		"reach":  int64(37),
+		"delay":  float64(51.016),
+		"offset": float64(233.010),
+		"jitter": float64(17.462),
+	}
+	tags := map[string]string{
+		"remote":  "*uschi5-ntp-002.",
+		"refid":   "10.177.80.46",
+		"stratum": "2",
+		"type":    "u",
+	}
+	acc.AssertContainsTaggedFields(t, "ntpq", fields, tags)
+}
+
+func TestMinutesNTPQ(t *testing.T) {
+	tt := tester{
+		ret: []byte(whenMinutesNTPQ),
+		err: nil,
+	}
+	n := &NTPQ{
+		runQ: tt.runqTest,
+	}
+
+	acc := testutil.Accumulator{}
+	assert.NoError(t, n.Gather(&acc))
+
+	fields := map[string]interface{}{
+		"when":   int64(120),
+		"poll":   int64(256),
+		"reach":  int64(37),
+		"delay":  float64(51.016),
+		"offset": float64(233.010),
+		"jitter": float64(17.462),
+	}
+	tags := map[string]string{
+		"remote":  "*uschi5-ntp-002.",
+		"refid":   "10.177.80.46",
+		"stratum": "2",
+		"type":    "u",
+	}
+	acc.AssertContainsTaggedFields(t, "ntpq", fields, tags)
+}
+
+func TestBadWhenNTPQ(t *testing.T) {
+	tt := tester{
+		ret: []byte(whenBadNTPQ),
+		err: nil,
+	}
+	n := &NTPQ{
+		runQ: tt.runqTest,
+	}
+
+	acc := testutil.Accumulator{}
+	assert.NoError(t, n.Gather(&acc))
+
+	fields := map[string]interface{}{
+		"poll":   int64(256),
+		"reach":  int64(37),
+		"delay":  float64(51.016),
+		"offset": float64(233.010),
+		"jitter": float64(17.462),
+	}
+	tags := map[string]string{
+		"remote":  "*uschi5-ntp-002.",
+		"refid":   "10.177.80.46",
+		"stratum": "2",
+		"type":    "u",
+	}
+	acc.AssertContainsTaggedFields(t, "ntpq", fields, tags)
+}
+
+func TestMultiNTPQ(t *testing.T) {
+	tt := tester{
+		ret: []byte(multiNTPQ),
+		err: nil,
+	}
+	n := &NTPQ{
+		runQ: tt.runqTest,
+	}
+
+	acc := testutil.Accumulator{}
+	assert.NoError(t, n.Gather(&acc))
+
+	fields := map[string]interface{}{
+		"delay":  float64(54.033),
+		"jitter": float64(449514),
+		"offset": float64(243.426),
+		"poll":   int64(1024),
+		"reach":  int64(377),
+		"when":   int64(740),
+	}
+	tags := map[string]string{
+		"refid":   "10.177.80.37",
+		"remote":  "83.137.98.96",
+		"stratum": "2",
+		"type":    "u",
+	}
+	acc.AssertContainsTaggedFields(t, "ntpq", fields, tags)
+
+	fields = map[string]interface{}{
+		"delay":  float64(60.785),
+		"jitter": float64(449539),
+		"offset": float64(232.597),
+		"poll":   int64(1024),
+		"reach":  int64(377),
+		"when":   int64(739),
+	}
+	tags = map[string]string{
+		"refid":   "10.177.80.37",
+		"remote":  "81.7.16.52",
+		"stratum": "2",
+		"type":    "u",
+	}
+	acc.AssertContainsTaggedFields(t, "ntpq", fields, tags)
+}
+
+func TestBadHeaderNTPQ(t *testing.T) {
+	resetVars()
+	tt := tester{
+		ret: []byte(badHeaderNTPQ),
+		err: nil,
+	}
+	n := &NTPQ{
+		runQ: tt.runqTest,
+	}
+
+	acc := testutil.Accumulator{}
+	assert.NoError(t, n.Gather(&acc))
+
+	fields := map[string]interface{}{
+		"when":   int64(101),
+		"poll":   int64(256),
+		"reach":  int64(37),
+		"delay":  float64(51.016),
+		"offset": float64(233.010),
+		"jitter": float64(17.462),
+	}
+	tags := map[string]string{
+		"remote": "*uschi5-ntp-002.",
+		"refid":  "10.177.80.46",
+		"type":   "u",
+	}
+	acc.AssertContainsTaggedFields(t, "ntpq", fields, tags)
+}
+
+func TestMissingDelayColumnNTPQ(t *testing.T) {
+	resetVars()
+	tt := tester{
+		ret: []byte(missingDelayNTPQ),
+		err: nil,
+	}
+	n := &NTPQ{
+		runQ: tt.runqTest,
+	}
+
+	acc := testutil.Accumulator{}
+	assert.NoError(t, n.Gather(&acc))
+
+	fields := map[string]interface{}{
+		"when":   int64(101),
+		"poll":   int64(256),
+		"reach":  int64(37),
+		"offset": float64(233.010),
+		"jitter": float64(17.462),
+	}
+	tags := map[string]string{
+		"remote": "*uschi5-ntp-002.",
+		"refid":  "10.177.80.46",
+		"type":   "u",
+	}
+	acc.AssertContainsTaggedFields(t, "ntpq", fields, tags)
+}
+
+func TestFailedNTPQ(t *testing.T) {
+	tt := tester{
+		ret: []byte(singleNTPQ),
+		err: fmt.Errorf("Test failure"),
+	}
+	n := &NTPQ{
+		runQ: tt.runqTest,
+	}
+
+	acc := testutil.Accumulator{}
+	assert.Error(t, n.Gather(&acc))
+}
+
+type tester struct {
+	ret []byte
+	err error
+}
+
+func (t *tester) runqTest() ([]byte, error) {
+	return t.ret, t.err
+}
+
+func resetVars() {
+	// Mapping of ntpq header names to tag keys
+	tagHeaders = map[string]string{
+		"remote": "remote",
+		"refid":  "refid",
+		"st":     "stratum",
+		"t":      "type",
+	}
+
+	// Mapping of the ntpq tag key to the index in the command output
+	tagI = map[string]int{
+		"remote":  -1,
+		"refid":   -1,
+		"stratum": -1,
+		"type":    -1,
+	}
+
+	// Mapping of float metrics to their index in the command output
+	floatI = map[string]int{
+		"delay":  -1,
+		"offset": -1,
+		"jitter": -1,
+	}
+
+	// Mapping of int metrics to their index in the command output
+	intI = map[string]int{
+		"when":  -1,
+		"poll":  -1,
+		"reach": -1,
+	}
+}
+
+var singleNTPQ = `     remote           refid      st t when poll reach   delay   offset  jitter
+==============================================================================
+*uschi5-ntp-002. 10.177.80.46     2 u  101  256   37   51.016  233.010  17.462
+`
+
+var badHeaderNTPQ = `remote      refid   foobar t when poll reach   delay   offset  jitter
+==============================================================================
+*uschi5-ntp-002. 10.177.80.46     2 u  101  256   37   51.016  233.010  17.462
+`
+
+var missingDelayNTPQ = `remote      refid   foobar t when poll reach   offset  jitter
+==============================================================================
+*uschi5-ntp-002. 10.177.80.46     2 u  101  256   37   233.010  17.462
+`
+
+var whenDaysNTPQ = `     remote           refid      st t when poll reach   delay   offset  jitter
+==============================================================================
+*uschi5-ntp-002. 10.177.80.46     2 u  2d  256   37   51.016  233.010  17.462
+`
+
+var whenHoursNTPQ = `     remote           refid      st t when poll reach   delay   offset  jitter
+==============================================================================
+*uschi5-ntp-002. 10.177.80.46     2 u  2h  256   37   51.016  233.010  17.462
+`
+
+var whenMinutesNTPQ = `     remote           refid      st t when poll reach   delay   offset  jitter
+==============================================================================
+*uschi5-ntp-002. 10.177.80.46     2 u  2m  256   37   51.016  233.010  17.462
+`
+
+var whenBadNTPQ = `     remote           refid      st t when poll reach   delay   offset  jitter
+==============================================================================
+*uschi5-ntp-002. 10.177.80.46     2 u  2q  256   37   51.016  233.010  17.462
+`
+
+var badFloatParseNTPQ = `     remote           refid      st t when poll reach   delay   offset  jitter
+==============================================================================
+*uschi5-ntp-002. 10.177.80.46     2 u  2  256   37   51.016  foobar  17.462
+`
+
+var badIntParseNTPQ = `     remote           refid      st t when poll reach   delay   offset  jitter
+==============================================================================
+*uschi5-ntp-002. 10.177.80.46     2 u  101  foobar   37   51.016  233.010  17.462
+`
+
+var multiNTPQ = `     remote           refid      st t when poll reach   delay   offset  jitter
+==============================================================================
+ 83.137.98.96    10.177.80.37     2 u  740 1024  377   54.033  243.426 449514.
+ 81.7.16.52      10.177.80.37     2 u  739 1024  377   60.785  232.597 449539.
+ 131.188.3.221   10.177.80.37     2 u  783 1024  377  111.820  261.921 449528.
+ 5.9.29.107      10.177.80.37     2 u  703 1024  377  205.704  160.406 449602.
+ 91.189.94.4     10.177.80.37     2 u  673 1024  377  143.047  274.726 449445.
+`

plugins/inputs/ntpq/ntpq_windows.go

@@ -0,0 +1,3 @@
+// +build windows
+
+package ntpq

plugins/inputs/phpfpm/child.go

@@ -0,0 +1,331 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package phpfpm
+
+// This file implements FastCGI from the perspective of a child process.
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net"
+	"net/http"
+	"net/http/cgi"
+	"os"
+	"strings"
+	"sync"
+	"time"
+)
+
+// request holds the state for an in-progress request. As soon as it's complete,
+// it's converted to an http.Request.
+type request struct {
+	pw        *io.PipeWriter
+	reqId     uint16
+	params    map[string]string
+	buf       [1024]byte
+	rawParams []byte
+	keepConn  bool
+}
+
+func newRequest(reqId uint16, flags uint8) *request {
+	r := &request{
+		reqId:    reqId,
+		params:   map[string]string{},
+		keepConn: flags&flagKeepConn != 0,
+	}
+	r.rawParams = r.buf[:0]
+	return r
+}
+
+// parseParams reads an encoded []byte into Params.
+func (r *request) parseParams() {
+	text := r.rawParams
+	r.rawParams = nil
+	for len(text) > 0 {
+		keyLen, n := readSize(text)
+		if n == 0 {
+			return
+		}
+		text = text[n:]
+		valLen, n := readSize(text)
+		if n == 0 {
+			return
+		}
+		text = text[n:]
+		if int(keyLen)+int(valLen) > len(text) {
+			return
+		}
+		key := readString(text, keyLen)
+		text = text[keyLen:]
+		val := readString(text, valLen)
+		text = text[valLen:]
+		r.params[key] = val
+	}
+}
+
+// response implements http.ResponseWriter.
+type response struct {
+	req         *request
+	header      http.Header
+	w           *bufWriter
+	wroteHeader bool
+}
+
+func newResponse(c *child, req *request) *response {
+	return &response{
+		req:    req,
+		header: http.Header{},
+		w:      newWriter(c.conn, typeStdout, req.reqId),
+	}
+}
+
+func (r *response) Header() http.Header {
+	return r.header
+}
+
+func (r *response) Write(data []byte) (int, error) {
+	if !r.wroteHeader {
+		r.WriteHeader(http.StatusOK)
+	}
+	return r.w.Write(data)
+}
+
+func (r *response) WriteHeader(code int) {
+	if r.wroteHeader {
+		return
+	}
+	r.wroteHeader = true
+	if code == http.StatusNotModified {
+		// Must not have body.
+		r.header.Del("Content-Type")
+		r.header.Del("Content-Length")
+		r.header.Del("Transfer-Encoding")
+	} else if r.header.Get("Content-Type") == "" {
+		r.header.Set("Content-Type", "text/html; charset=utf-8")
+	}
+
+	if r.header.Get("Date") == "" {
+		r.header.Set("Date", time.Now().UTC().Format(http.TimeFormat))
+	}
+
+	fmt.Fprintf(r.w, "Status: %d %s\r\n", code, http.StatusText(code))
+	r.header.Write(r.w)
+	r.w.WriteString("\r\n")
+}
+
+func (r *response) Flush() {
+	if !r.wroteHeader {
+		r.WriteHeader(http.StatusOK)
+	}
+	r.w.Flush()
+}
+
+func (r *response) Close() error {
+	r.Flush()
+	return r.w.Close()
+}
+
+type child struct {
+	conn    *conn
+	handler http.Handler
+
+	mu       sync.Mutex          // protects requests:
+	requests map[uint16]*request // keyed by request ID
+}
+
+func newChild(rwc io.ReadWriteCloser, handler http.Handler) *child {
+	return &child{
+		conn:     newConn(rwc),
+		handler:  handler,
+		requests: make(map[uint16]*request),
+	}
+}
+
+func (c *child) serve() {
+	defer c.conn.Close()
+	defer c.cleanUp()
+	var rec record
+	for {
+		if err := rec.read(c.conn.rwc); err != nil {
+			return
+		}
+		if err := c.handleRecord(&rec); err != nil {
+			return
+		}
+	}
+}
+
+var errCloseConn = errors.New("fcgi: connection should be closed")
+
+var emptyBody = ioutil.NopCloser(strings.NewReader(""))
+
+// ErrRequestAborted is returned by Read when a handler attempts to read the
+// body of a request that has been aborted by the web server.
+var ErrRequestAborted = errors.New("fcgi: request aborted by web server")
+
+// ErrConnClosed is returned by Read when a handler attempts to read the body of
+// a request after the connection to the web server has been closed.
+var ErrConnClosed = errors.New("fcgi: connection to web server closed")
+
+func (c *child) handleRecord(rec *record) error {
+	c.mu.Lock()
+	req, ok := c.requests[rec.h.Id]
+	c.mu.Unlock()
+	if !ok && rec.h.Type != typeBeginRequest && rec.h.Type != typeGetValues {
+		// The spec says to ignore unknown request IDs.
+		return nil
+	}
+
+	switch rec.h.Type {
+	case typeBeginRequest:
+		if req != nil {
+			// The server is trying to begin a request with the same ID
+			// as an in-progress request. This is an error.
+			return errors.New("fcgi: received ID that is already in-flight")
+		}
+
+		var br beginRequest
+		if err := br.read(rec.content()); err != nil {
+			return err
+		}
+		if br.role != roleResponder {
+			c.conn.writeEndRequest(rec.h.Id, 0, statusUnknownRole)
+			return nil
+		}
+		req = newRequest(rec.h.Id, br.flags)
+		c.mu.Lock()
+		c.requests[rec.h.Id] = req
+		c.mu.Unlock()
+		return nil
+	case typeParams:
+		// NOTE(eds): Technically a key-value pair can straddle the boundary
+		// between two packets. We buffer until we've received all parameters.
+		if len(rec.content()) > 0 {
+			req.rawParams = append(req.rawParams, rec.content()...)
+			return nil
+		}
+		req.parseParams()
+		return nil
+	case typeStdin:
+		content := rec.content()
+		if req.pw == nil {
+			var body io.ReadCloser
+			if len(content) > 0 {
+				// body could be an io.LimitReader, but it shouldn't matter
+				// as long as both sides are behaving.
+				body, req.pw = io.Pipe()
+			} else {
+				body = emptyBody
+			}
+			go c.serveRequest(req, body)
+		}
+		if len(content) > 0 {
+			// TODO(eds): This blocks until the handler reads from the pipe.
+			// If the handler takes a long time, it might be a problem.
+			req.pw.Write(content)
+		} else if req.pw != nil {
+			req.pw.Close()
+		}
+		return nil
+	case typeGetValues:
+		values := map[string]string{"FCGI_MPXS_CONNS": "1"}
+		c.conn.writePairs(typeGetValuesResult, 0, values)
+		return nil
+	case typeData:
+		// If the filter role is implemented, read the data stream here.
+		return nil
+	case typeAbortRequest:
+		c.mu.Lock()
+		delete(c.requests, rec.h.Id)
+		c.mu.Unlock()
+		c.conn.writeEndRequest(rec.h.Id, 0, statusRequestComplete)
+		if req.pw != nil {
+			req.pw.CloseWithError(ErrRequestAborted)
+		}
+		if !req.keepConn {
+			// connection will close upon return
+			return errCloseConn
+		}
+		return nil
+	default:
+		b := make([]byte, 8)
+		b[0] = byte(rec.h.Type)
+		c.conn.writeRecord(typeUnknownType, 0, b)
+		return nil
+	}
+}
+
+func (c *child) serveRequest(req *request, body io.ReadCloser) {
+	r := newResponse(c, req)
+	httpReq, err := cgi.RequestFromMap(req.params)
+	if err != nil {
+		// there was an error reading the request
+		r.WriteHeader(http.StatusInternalServerError)
+		c.conn.writeRecord(typeStderr, req.reqId, []byte(err.Error()))
+	} else {
+		httpReq.Body = body
+		c.handler.ServeHTTP(r, httpReq)
+	}
+	r.Close()
+	c.mu.Lock()
+	delete(c.requests, req.reqId)
+	c.mu.Unlock()
+	c.conn.writeEndRequest(req.reqId, 0, statusRequestComplete)
+
+	// Consume the entire body, so the host isn't still writing to
+	// us when we close the socket below in the !keepConn case,
+	// otherwise we'd send a RST. (golang.org/issue/4183)
+	// TODO(bradfitz): also bound this copy in time. Or send
+	// some sort of abort request to the host, so the host
+	// can properly cut off the client sending all the data.
+	// For now just bound it a little and
+	io.CopyN(ioutil.Discard, body, 100<<20)
+	body.Close()
+
+	if !req.keepConn {
+		c.conn.Close()
+	}
+}
+
+func (c *child) cleanUp() {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	for _, req := range c.requests {
+		if req.pw != nil {
+			// race with call to Close in c.serveRequest doesn't matter because
+			// Pipe(Reader|Writer).Close are idempotent
+			req.pw.CloseWithError(ErrConnClosed)
+		}
+	}
+}
+
+// Serve accepts incoming FastCGI connections on the listener l, creating a new
+// goroutine for each. The goroutine reads requests and then calls handler
+// to reply to them.
+// If l is nil, Serve accepts connections from os.Stdin.
+// If handler is nil, http.DefaultServeMux is used.
+func Serve(l net.Listener, handler http.Handler) error {
+	if l == nil {
+		var err error
+		l, err = net.FileListener(os.Stdin)
+		if err != nil {
+			return err
+		}
+		defer l.Close()
+	}
+	if handler == nil {
+		handler = http.DefaultServeMux
+	}
+	for {
+		rw, err := l.Accept()
+		if err != nil {
+			return err
+		}
+		c := newChild(rw, handler)
+		go c.serve()
+	}
+}

plugins/inputs/phpfpm/fcgi.go

@@ -17,11 +17,6 @@ import (
 	"errors"
 	"io"
 	"sync"
-
-	"net"
-	"strconv"
-
-	"strings"
 )
 
 // recType is a record type, as defined by
@@ -277,74 +272,3 @@ func (w *streamWriter) Close() error {
 	// send empty record to close the stream
 	return w.c.writeRecord(w.recType, w.reqId, nil)
 }
-
-func NewClient(h string, args ...interface{}) (fcgi *conn, err error) {
-	var con net.Conn
-	if len(args) != 1 {
-		err = errors.New("fcgi: not enough params")
-		return
-	}
-	switch args[0].(type) {
-	case int:
-		addr := h + ":" + strconv.FormatInt(int64(args[0].(int)), 10)
-		con, err = net.Dial("tcp", addr)
-	case string:
-		laddr := net.UnixAddr{Name: args[0].(string), Net: h}
-		con, err = net.DialUnix(h, nil, &laddr)
-	default:
-		err = errors.New("fcgi: we only accept int (port) or string (socket) params.")
-	}
-	fcgi = &conn{
-		rwc: con,
-	}
-	return
-}
-
-func (client *conn) Request(env map[string]string, requestData string) (retout []byte, reterr []byte, err error) {
-	defer client.rwc.Close()
-	var reqId uint16 = 1
-
-	err = client.writeBeginRequest(reqId, uint16(roleResponder), 0)
-	if err != nil {
-		return
-	}
-
-	err = client.writePairs(typeParams, reqId, env)
-	if err != nil {
-		return
-	}
-
-	if len(requestData) > 0 {
-		if err = client.writeRecord(typeStdin, reqId, []byte(requestData)); err != nil {
-			return
-		}
-	}
-
-	rec := &record{}
-	var err1 error
-
-	// recive untill EOF or FCGI_END_REQUEST
-READ_LOOP:
-	for {
-		err1 = rec.read(client.rwc)
-		if err1 != nil && strings.Contains(err1.Error(), "use of closed network connection") {
-			if err1 != io.EOF {
-				err = err1
-			}
-			break
-		}
-
-		switch {
-		case rec.h.Type == typeStdout:
-			retout = append(retout, rec.content()...)
-		case rec.h.Type == typeStderr:
-			reterr = append(reterr, rec.content()...)
-		case rec.h.Type == typeEndRequest:
-			fallthrough
-		default:
-			break READ_LOOP
-		}
-	}
-
-	return
-}

plugins/inputs/phpfpm/fcgi_client.go

@@ -0,0 +1,86 @@
+package phpfpm
+
+import (
+	"errors"
+	"io"
+	"net"
+	"strconv"
+	"strings"
+)
+
+// Create an fcgi client
+func newFcgiClient(h string, args ...interface{}) (*conn, error) {
+	var con net.Conn
+	if len(args) != 1 {
+		return nil, errors.New("fcgi: not enough params")
+	}
+
+	var err error
+	switch args[0].(type) {
+	case int:
+		addr := h + ":" + strconv.FormatInt(int64(args[0].(int)), 10)
+		con, err = net.Dial("tcp", addr)
+	case string:
+		laddr := net.UnixAddr{Name: args[0].(string), Net: h}
+		con, err = net.DialUnix(h, nil, &laddr)
+	default:
+		err = errors.New("fcgi: we only accept int (port) or string (socket) params.")
+	}
+	fcgi := &conn{
+		rwc: con,
+	}
+
+	return fcgi, err
+}
+
+func (client *conn) Request(
+	env map[string]string,
+	requestData string,
+) (retout []byte, reterr []byte, err error) {
+	defer client.rwc.Close()
+	var reqId uint16 = 1
+
+	err = client.writeBeginRequest(reqId, uint16(roleResponder), 0)
+	if err != nil {
+		return
+	}
+
+	err = client.writePairs(typeParams, reqId, env)
+	if err != nil {
+		return
+	}
+
+	if len(requestData) > 0 {
+		if err = client.writeRecord(typeStdin, reqId, []byte(requestData)); err != nil {
+			return
+		}
+	}
+
+	rec := &record{}
+	var err1 error
+
+	// recive untill EOF or FCGI_END_REQUEST
+READ_LOOP:
+	for {
+		err1 = rec.read(client.rwc)
+		if err1 != nil && strings.Contains(err1.Error(), "use of closed network connection") {
+			if err1 != io.EOF {
+				err = err1
+			}
+			break
+		}
+
+		switch {
+		case rec.h.Type == typeStdout:
+			retout = append(retout, rec.content()...)
+		case rec.h.Type == typeStderr:
+			reterr = append(reterr, rec.content()...)
+		case rec.h.Type == typeEndRequest:
+			fallthrough
+		default:
+			break READ_LOOP
+		}
+	}
+
+	return
+}

plugins/inputs/phpfpm/fcgi_test.go

@@ -0,0 +1,280 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package phpfpm
+
+import (
+	"bytes"
+	"errors"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"testing"
+)
+
+var sizeTests = []struct {
+	size  uint32
+	bytes []byte
+}{
+	{0, []byte{0x00}},
+	{127, []byte{0x7F}},
+	{128, []byte{0x80, 0x00, 0x00, 0x80}},
+	{1000, []byte{0x80, 0x00, 0x03, 0xE8}},
+	{33554431, []byte{0x81, 0xFF, 0xFF, 0xFF}},
+}
+
+func TestSize(t *testing.T) {
+	b := make([]byte, 4)
+	for i, test := range sizeTests {
+		n := encodeSize(b, test.size)
+		if !bytes.Equal(b[:n], test.bytes) {
+			t.Errorf("%d expected %x, encoded %x", i, test.bytes, b)
+		}
+		size, n := readSize(test.bytes)
+		if size != test.size {
+			t.Errorf("%d expected %d, read %d", i, test.size, size)
+		}
+		if len(test.bytes) != n {
+			t.Errorf("%d did not consume all the bytes", i)
+		}
+	}
+}
+
+var streamTests = []struct {
+	desc    string
+	recType recType
+	reqId   uint16
+	content []byte
+	raw     []byte
+}{
+	{"single record", typeStdout, 1, nil,
+		[]byte{1, byte(typeStdout), 0, 1, 0, 0, 0, 0},
+	},
+	// this data will have to be split into two records
+	{"two records", typeStdin, 300, make([]byte, 66000),
+		bytes.Join([][]byte{
+			// header for the first record
+			{1, byte(typeStdin), 0x01, 0x2C, 0xFF, 0xFF, 1, 0},
+			make([]byte, 65536),
+			// header for the second
+			{1, byte(typeStdin), 0x01, 0x2C, 0x01, 0xD1, 7, 0},
+			make([]byte, 472),
+			// header for the empty record
+			{1, byte(typeStdin), 0x01, 0x2C, 0, 0, 0, 0},
+		},
+			nil),
+	},
+}
+
+type nilCloser struct {
+	io.ReadWriter
+}
+
+func (c *nilCloser) Close() error { return nil }
+
+func TestStreams(t *testing.T) {
+	var rec record
+outer:
+	for _, test := range streamTests {
+		buf := bytes.NewBuffer(test.raw)
+		var content []byte
+		for buf.Len() > 0 {
+			if err := rec.read(buf); err != nil {
+				t.Errorf("%s: error reading record: %v", test.desc, err)
+				continue outer
+			}
+			content = append(content, rec.content()...)
+		}
+		if rec.h.Type != test.recType {
+			t.Errorf("%s: got type %d expected %d", test.desc, rec.h.Type, test.recType)
+			continue
+		}
+		if rec.h.Id != test.reqId {
+			t.Errorf("%s: got request ID %d expected %d", test.desc, rec.h.Id, test.reqId)
+			continue
+		}
+		if !bytes.Equal(content, test.content) {
+			t.Errorf("%s: read wrong content", test.desc)
+			continue
+		}
+		buf.Reset()
+		c := newConn(&nilCloser{buf})
+		w := newWriter(c, test.recType, test.reqId)
+		if _, err := w.Write(test.content); err != nil {
+			t.Errorf("%s: error writing record: %v", test.desc, err)
+			continue
+		}
+		if err := w.Close(); err != nil {
+			t.Errorf("%s: error closing stream: %v", test.desc, err)
+			continue
+		}
+		if !bytes.Equal(buf.Bytes(), test.raw) {
+			t.Errorf("%s: wrote wrong content", test.desc)
+		}
+	}
+}
+
+type writeOnlyConn struct {
+	buf []byte
+}
+
+func (c *writeOnlyConn) Write(p []byte) (int, error) {
+	c.buf = append(c.buf, p...)
+	return len(p), nil
+}
+
+func (c *writeOnlyConn) Read(p []byte) (int, error) {
+	return 0, errors.New("conn is write-only")
+}
+
+func (c *writeOnlyConn) Close() error {
+	return nil
+}
+
+func TestGetValues(t *testing.T) {
+	var rec record
+	rec.h.Type = typeGetValues
+
+	wc := new(writeOnlyConn)
+	c := newChild(wc, nil)
+	err := c.handleRecord(&rec)
+	if err != nil {
+		t.Fatalf("handleRecord: %v", err)
+	}
+
+	const want = "\x01\n\x00\x00\x00\x12\x06\x00" +
+		"\x0f\x01FCGI_MPXS_CONNS1" +
+		"\x00\x00\x00\x00\x00\x00\x01\n\x00\x00\x00\x00\x00\x00"
+	if got := string(wc.buf); got != want {
+		t.Errorf(" got: %q\nwant: %q\n", got, want)
+	}
+}
+
+func nameValuePair11(nameData, valueData string) []byte {
+	return bytes.Join(
+		[][]byte{
+			{byte(len(nameData)), byte(len(valueData))},
+			[]byte(nameData),
+			[]byte(valueData),
+		},
+		nil,
+	)
+}
+
+func makeRecord(
+	recordType recType,
+	requestId uint16,
+	contentData []byte,
+) []byte {
+	requestIdB1 := byte(requestId >> 8)
+	requestIdB0 := byte(requestId)
+
+	contentLength := len(contentData)
+	contentLengthB1 := byte(contentLength >> 8)
+	contentLengthB0 := byte(contentLength)
+	return bytes.Join([][]byte{
+		{1, byte(recordType), requestIdB1, requestIdB0, contentLengthB1,
+			contentLengthB0, 0, 0},
+		contentData,
+	},
+		nil)
+}
+
+// a series of FastCGI records that start a request and begin sending the
+// request body
+var streamBeginTypeStdin = bytes.Join([][]byte{
+	// set up request 1
+	makeRecord(typeBeginRequest, 1,
+		[]byte{0, byte(roleResponder), 0, 0, 0, 0, 0, 0}),
+	// add required parameters to request 1
+	makeRecord(typeParams, 1, nameValuePair11("REQUEST_METHOD", "GET")),
+	makeRecord(typeParams, 1, nameValuePair11("SERVER_PROTOCOL", "HTTP/1.1")),
+	makeRecord(typeParams, 1, nil),
+	// begin sending body of request 1
+	makeRecord(typeStdin, 1, []byte("0123456789abcdef")),
+},
+	nil)
+
+var cleanUpTests = []struct {
+	input []byte
+	err   error
+}{
+	// confirm that child.handleRecord closes req.pw after aborting req
+	{
+		bytes.Join([][]byte{
+			streamBeginTypeStdin,
+			makeRecord(typeAbortRequest, 1, nil),
+		},
+			nil),
+		ErrRequestAborted,
+	},
+	// confirm that child.serve closes all pipes after error reading record
+	{
+		bytes.Join([][]byte{
+			streamBeginTypeStdin,
+			nil,
+		},
+			nil),
+		ErrConnClosed,
+	},
+}
+
+type nopWriteCloser struct {
+	io.ReadWriter
+}
+
+func (nopWriteCloser) Close() error {
+	return nil
+}
+
+// Test that child.serve closes the bodies of aborted requests and closes the
+// bodies of all requests before returning. Causes deadlock if either condition
+// isn't met. See issue 6934.
+func TestChildServeCleansUp(t *testing.T) {
+	for _, tt := range cleanUpTests {
+		input := make([]byte, len(tt.input))
+		copy(input, tt.input)
+		rc := nopWriteCloser{bytes.NewBuffer(input)}
+		done := make(chan bool)
+		c := newChild(rc, http.HandlerFunc(func(
+			w http.ResponseWriter,
+			r *http.Request,
+		) {
+			// block on reading body of request
+			_, err := io.Copy(ioutil.Discard, r.Body)
+			if err != tt.err {
+				t.Errorf("Expected %#v, got %#v", tt.err, err)
+			}
+			// not reached if body of request isn't closed
+			done <- true
+		}))
+		go c.serve()
+		// wait for body of request to be closed or all goroutines to block
+		<-done
+	}
+}
+
+type rwNopCloser struct {
+	io.Reader
+	io.Writer
+}
+
+func (rwNopCloser) Close() error {
+	return nil
+}
+
+// Verifies it doesn't crash. 	Issue 11824.
+func TestMalformedParams(t *testing.T) {
+	input := []byte{
+		// beginRequest, requestId=1, contentLength=8, role=1, keepConn=1
+		1, 1, 0, 1, 0, 8, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0,
+		// params, requestId=1, contentLength=10, k1Len=50, v1Len=50 (malformed, wrong length)
+		1, 4, 0, 1, 0, 10, 0, 0, 50, 50, 3, 4, 5, 6, 7, 8, 9, 10,
+		// end of params
+		1, 4, 0, 1, 0, 0, 0, 0,
+	}
+	rw := rwNopCloser{bytes.NewReader(input), ioutil.Discard}
+	c := newChild(rw, http.DefaultServeMux)
+	c.serve()
+}

plugins/inputs/phpfpm/phpfpm.go

@@ -112,6 +112,7 @@ func (g *phpfpm) gatherServer(addr string, acc telegraf.Accumulator) error {
 		statusPath string
 	)
 
+	var err error
 	if strings.HasPrefix(addr, "fcgi://") || strings.HasPrefix(addr, "cgi://") {
 		u, err := url.Parse(addr)
 		if err != nil {
@@ -120,7 +121,12 @@ func (g *phpfpm) gatherServer(addr string, acc telegraf.Accumulator) error {
 		socketAddr := strings.Split(u.Host, ":")
 		fcgiIp := socketAddr[0]
 		fcgiPort, _ := strconv.Atoi(socketAddr[1])
-		fcgi, _ = NewClient(fcgiIp, fcgiPort)
+		fcgi, err = newFcgiClient(fcgiIp, fcgiPort)
+		if len(u.Path) > 1 {
+			statusPath = strings.Trim(u.Path, "/")
+		} else {
+			statusPath = "status"
+		}
 	} else {
 		socketAddr := strings.Split(addr, ":")
 		if len(socketAddr) >= 2 {
@@ -134,8 +140,13 @@ func (g *phpfpm) gatherServer(addr string, acc telegraf.Accumulator) error {
 		if _, err := os.Stat(socketPath); os.IsNotExist(err) {
 			return fmt.Errorf("Socket doesn't exist  '%s': %s", socketPath, err)
 		}
-		fcgi, _ = NewClient("unix", socketPath)
+		fcgi, err = newFcgiClient("unix", socketPath)
 	}
+
+	if err != nil {
+		return err
+	}
+
 	return g.gatherFcgi(fcgi, statusPath, acc)
 }
 

plugins/inputs/postgresql/postgresql.go

@@ -4,27 +4,30 @@ import (
 	"bytes"
 	"database/sql"
 	"fmt"
+	"regexp"
 	"sort"
 	"strings"
 
 	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/plugins/inputs"
 
-	_ "github.com/lib/pq"
+	"github.com/lib/pq"
 )
 
 type Postgresql struct {
-	Address        string
+	Address          string
-	Databases      []string
+	Databases        []string
-	OrderedColumns []string
+	OrderedColumns   []string
-	AllColumns     []string
+	AllColumns       []string
+	sanitizedAddress string
 }
 
 var ignoredColumns = map[string]bool{"datid": true, "datname": true, "stats_reset": true}
 
 var sampleConfig = `
   ## specify address via a url matching:
-  ##   postgres://[pqgotest[:password]]@localhost[/dbname]?sslmode=[disable|verify-ca|verify-full]
+  ##   postgres://[pqgotest[:password]]@localhost[/dbname]\
+  ##       ?sslmode=[disable|verify-ca|verify-full]
   ## or a simple string:
   ##   host=localhost user=pqotest password=... sslmode=... dbname=app_production
   ##
@@ -133,6 +136,23 @@ type scanner interface {
 	Scan(dest ...interface{}) error
 }
 
+var passwordKVMatcher, _ = regexp.Compile("password=\\S+ ?")
+
+func (p *Postgresql) SanitizedAddress() (_ string, err error) {
+	var canonicalizedAddress string
+	if strings.HasPrefix(p.Address, "postgres://") || strings.HasPrefix(p.Address, "postgresql://") {
+		canonicalizedAddress, err = pq.ParseURL(p.Address)
+		if err != nil {
+			return p.sanitizedAddress, err
+		}
+	} else {
+		canonicalizedAddress = p.Address
+	}
+	p.sanitizedAddress = passwordKVMatcher.ReplaceAllString(canonicalizedAddress, "")
+
+	return p.sanitizedAddress, err
+}
+
 func (p *Postgresql) accRow(row scanner, acc telegraf.Accumulator) error {
 	var columnVars []interface{}
 	var dbname bytes.Buffer
@@ -165,7 +185,13 @@ func (p *Postgresql) accRow(row scanner, acc telegraf.Accumulator) error {
 		dbname.WriteString("postgres")
 	}
 
-	tags := map[string]string{"server": p.Address, "db": dbname.String()}
+	var tagAddress string
+	tagAddress, err = p.SanitizedAddress()
+	if err != nil {
+		return err
+	}
+
+	tags := map[string]string{"server": tagAddress, "db": dbname.String()}
 
 	fields := make(map[string]interface{})
 	for col, val := range columnMap {

plugins/inputs/postgresql_extensible/README.md

@@ -0,0 +1,231 @@
+# PostgreSQL plugin
+
+This postgresql plugin provides metrics for your postgres database. It has been
+designed to parse ithe sql queries in the plugin section of your telegraf.conf.
+
+For now only two queries are specified and it's up to you to add more; some per
+query parameters have been added :
+
+* The SQl query itself
+* The minimum version supported (here in numeric display visible in pg_settings)
+* A boolean to define if the query have to be run against some specific
+* variables (defined in the databaes variable of the plugin section)
+* The list of the column that have to be defined has tags
+
+```
+[[inputs.postgresql_extensible]]
+  # specify address via a url matching:
+  # postgres://[pqgotest[:password]]@localhost[/dbname]?sslmode=...
+  # or a simple string:
+  #   host=localhost user=pqotest password=... sslmode=... dbname=app_production
+  #
+  # All connection parameters are optional.  #
+  # Without the dbname parameter, the driver will default to a database
+  # with the same name as the user. This dbname is just for instantiating a
+  # connection with the server and doesn't restrict the databases we are trying
+  # to grab metrics for.
+  #
+  address = "host=localhost user=postgres sslmode=disable"
+  # A list of databases to pull metrics about. If not specified, metrics for all
+  # databases are gathered.
+  # databases = ["app_production", "testing"]
+  #
+  # Define the toml config where the sql queries are stored
+  # New queries can be added, if the withdbname is set to true and there is no
+  # databases defined in the 'databases field', the sql query is ended by a 'is
+  # not null' in order to make the query succeed.
+  # Be careful that the sqlquery must contain the where clause with a part of
+  # the filtering, the plugin will add a 'IN (dbname list)' clause if the
+  # withdbname is set to true
+  # Example :
+  # The sqlquery : "SELECT * FROM pg_stat_database where datname" become
+  # "SELECT * FROM pg_stat_database where datname IN ('postgres', 'pgbench')"
+  # because the databases variable was set to ['postgres', 'pgbench' ] and the
+  # withdbname was true.
+  # Be careful that if the withdbname is set to false you d'ont have to define
+  # the where clause (aka with the dbname)
+  # the tagvalue field is used to define custom tags (separated by comas)
+  #
+  # Structure :
+  # [[inputs.postgresql_extensible.query]]
+  #   sqlquery string
+  #   version string
+  #   withdbname boolean
+  #   tagvalue string (coma separated)
+  [[inputs.postgresql_extensible.query]]
+    sqlquery="SELECT * FROM pg_stat_database where datname"
+    version=901
+    withdbname=false
+    tagvalue=""
+  [[inputs.postgresql_extensible.query]]
+    sqlquery="SELECT * FROM pg_stat_bgwriter"
+    version=901
+    withdbname=false
+    tagvalue=""
+```
+
+The system can be easily extended using homemade metrics collection tools or
+using postgreql extensions ([pg_stat_statements](http://www.postgresql.org/docs/current/static/pgstatstatements.html), [pg_proctab](https://github.com/markwkm/pg_proctab),[powa](http://dalibo.github.io/powa/)...)
+
+# Sample Queries :
+- telegraf.conf postgresql_extensible queries (assuming that you have configured
+ correctly your connection)
+```
+[[inputs.postgresql_extensible.query]]
+  sqlquery="SELECT * FROM pg_stat_database"
+  version=901
+  withdbname=false
+  tagvalue=""
+[[inputs.postgresql_extensible.query]]
+  sqlquery="SELECT * FROM pg_stat_bgwriter"
+  version=901
+  withdbname=false
+  tagvalue=""
+[[inputs.postgresql_extensible.query]]
+  sqlquery="select * from sessions"
+  version=901
+  withdbname=false
+  tagvalue="db,username,state"
+[[inputs.postgresql_extensible.query]]
+  sqlquery="select setting as max_connections from pg_settings where \
+  name='max_connections'"
+  version=801
+  withdbname=false
+  tagvalue=""
+[[inputs.postgresql_extensible.query]]
+  sqlquery="select * from pg_stat_kcache"
+  version=901
+  withdbname=false
+  tagvalue=""
+[[inputs.postgresql_extensible.query]]
+  sqlquery="select setting as shared_buffers from pg_settings where \
+  name='shared_buffers'"
+  version=801
+  withdbname=false
+  tagvalue=""
+[[inputs.postgresql_extensible.query]]
+  sqlquery="SELECT db, count( distinct blocking_pid ) AS num_blocking_sessions,\
+  count( distinct blocked_pid) AS num_blocked_sessions FROM \
+  public.blocking_procs group by db"
+  version=901
+  withdbname=false
+  tagvalue="db"
+```
+
+# Postgresql Side
+postgresql.conf :
+```
+shared_preload_libraries = 'pg_stat_statements,pg_stat_kcache'
+```
+
+Please follow the requirements to setup those extensions.
+
+In the database (can be a specific monitoring db)
+```
+create extension pg_stat_statements;
+create extension pg_stat_kcache;
+create extension pg_proctab;
+```
+(assuming that the extension is installed on the OS Layer)
+
+ - pg_stat_kcache is available on the postgresql.org yum repo
+ - pg_proctab is available at : https://github.com/markwkm/pg_proctab
+
+ ##Views
+ - Blocking sessions
+```
+CREATE OR REPLACE VIEW public.blocking_procs AS
+ SELECT a.datname AS db,
+    kl.pid AS blocking_pid,
+    ka.usename AS blocking_user,
+    ka.query AS blocking_query,
+    bl.pid AS blocked_pid,
+    a.usename AS blocked_user,
+    a.query AS blocked_query,
+    to_char(age(now(), a.query_start), 'HH24h:MIm:SSs'::text) AS age
+   FROM pg_locks bl
+     JOIN pg_stat_activity a ON bl.pid = a.pid
+     JOIN pg_locks kl ON bl.locktype = kl.locktype AND NOT bl.database IS
+     DISTINCT FROM kl.database AND NOT bl.relation IS DISTINCT FROM kl.relation
+     AND NOT bl.page IS DISTINCT FROM kl.page AND NOT bl.tuple IS DISTINCT FROM
+     kl.tuple AND NOT bl.virtualxid IS DISTINCT FROM kl.virtualxid AND NOT
+     bl.transactionid IS DISTINCT FROM kl.transactionid AND NOT bl.classid IS
+     DISTINCT FROM kl.classid AND NOT bl.objid IS DISTINCT FROM kl.objid AND
+      NOT bl.objsubid IS DISTINCT FROM kl.objsubid AND bl.pid <> kl.pid
+     JOIN pg_stat_activity ka ON kl.pid = ka.pid
+  WHERE kl.granted AND NOT bl.granted
+  ORDER BY a.query_start;
+```
+  - Sessions Statistics
+```
+CREATE OR REPLACE VIEW public.sessions AS
+ WITH proctab AS (
+         SELECT pg_proctab.pid,
+                CASE
+                    WHEN pg_proctab.state::text = 'R'::bpchar::text
+                      THEN 'running'::text
+                    WHEN pg_proctab.state::text = 'D'::bpchar::text
+                      THEN 'sleep-io'::text
+                    WHEN pg_proctab.state::text = 'S'::bpchar::text
+                      THEN 'sleep-waiting'::text
+                    WHEN pg_proctab.state::text = 'Z'::bpchar::text
+                      THEN 'zombie'::text
+                    WHEN pg_proctab.state::text = 'T'::bpchar::text
+                      THEN 'stopped'::text
+                    ELSE NULL::text
+                END AS proc_state,
+            pg_proctab.ppid,
+            pg_proctab.utime,
+            pg_proctab.stime,
+            pg_proctab.vsize,
+            pg_proctab.rss,
+            pg_proctab.processor,
+            pg_proctab.rchar,
+            pg_proctab.wchar,
+            pg_proctab.syscr,
+            pg_proctab.syscw,
+            pg_proctab.reads,
+            pg_proctab.writes,
+            pg_proctab.cwrites
+           FROM pg_proctab() pg_proctab(pid, comm, fullcomm, state, ppid, pgrp,
+             session, tty_nr, tpgid, flags, minflt, cminflt, majflt, cmajflt,
+             utime, stime, cutime, cstime, priority, nice, num_threads,
+             itrealvalue, starttime, vsize, rss, exit_signal, processor,
+             rt_priority, policy, delayacct_blkio_ticks, uid, username, rchar,
+             wchar, syscr, syscw, reads, writes, cwrites)
+        ), stat_activity AS (
+         SELECT pg_stat_activity.datname,
+            pg_stat_activity.pid,
+            pg_stat_activity.usename,
+                CASE
+                    WHEN pg_stat_activity.query IS NULL THEN 'no query'::text
+                    WHEN pg_stat_activity.query IS NOT NULL AND
+                    pg_stat_activity.state = 'idle'::text THEN 'no query'::text
+                    ELSE regexp_replace(pg_stat_activity.query, '[\n\r]+'::text,
+                       ' '::text, 'g'::text)
+                END AS query
+           FROM pg_stat_activity
+        )
+ SELECT stat.datname::name AS db,
+    stat.usename::name AS username,
+    stat.pid,
+    proc.proc_state::text AS state,
+('"'::text || stat.query) || '"'::text AS query,
+    (proc.utime/1000)::bigint AS session_usertime,
+    (proc.stime/1000)::bigint AS session_systemtime,
+    proc.vsize AS session_virtual_memory_size,
+    proc.rss AS session_resident_memory_size,
+    proc.processor AS session_processor_number,
+    proc.rchar AS session_bytes_read,
+    proc.rchar-proc.reads AS session_logical_bytes_read,
+    proc.wchar AS session_bytes_written,
+    proc.wchar-proc.writes AS session_logical_bytes_writes,
+    proc.syscr AS session_read_io,
+    proc.syscw AS session_write_io,
+    proc.reads AS session_physical_reads,
+    proc.writes AS session_physical_writes,
+    proc.cwrites AS session_cancel_writes
+   FROM proctab proc,
+    stat_activity stat
+  WHERE proc.pid = stat.pid;
+```

plugins/inputs/postgresql_extensible/postgresql_extensible.go

@@ -0,0 +1,278 @@
+package postgresql_extensible
+
+import (
+	"bytes"
+	"database/sql"
+	"fmt"
+	"regexp"
+	"strings"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/inputs"
+
+	"github.com/lib/pq"
+)
+
+type Postgresql struct {
+	Address          string
+	Databases        []string
+	OrderedColumns   []string
+	AllColumns       []string
+	AdditionalTags   []string
+	sanitizedAddress string
+	Query            []struct {
+		Sqlquery   string
+		Version    int
+		Withdbname bool
+		Tagvalue   string
+	}
+}
+
+type query []struct {
+	Sqlquery   string
+	Version    int
+	Withdbname bool
+	Tagvalue   string
+}
+
+var ignoredColumns = map[string]bool{"datid": true, "datname": true, "stats_reset": true}
+
+var sampleConfig = `
+  ## specify address via a url matching:
+  ##   postgres://[pqgotest[:password]]@localhost[/dbname]\
+  ##       ?sslmode=[disable|verify-ca|verify-full]
+  ## or a simple string:
+  ##   host=localhost user=pqotest password=... sslmode=... dbname=app_production
+  #
+  ## All connection parameters are optional.  #
+  ## Without the dbname parameter, the driver will default to a database
+  ## with the same name as the user. This dbname is just for instantiating a
+  ## connection with the server and doesn't restrict the databases we are trying
+  ## to grab metrics for.
+  #
+  address = "host=localhost user=postgres sslmode=disable"
+  ## A list of databases to pull metrics about. If not specified, metrics for all
+  ## databases are gathered.
+  ## databases = ["app_production", "testing"]
+  #
+  ## Define the toml config where the sql queries are stored
+  ## New queries can be added, if the withdbname is set to true and there is no
+  ## databases defined in the 'databases field', the sql query is ended by a
+  ## 'is not null' in order to make the query succeed.
+  ## Example :
+  ## The sqlquery : "SELECT * FROM pg_stat_database where datname" become
+  ## "SELECT * FROM pg_stat_database where datname IN ('postgres', 'pgbench')"
+  ## because the databases variable was set to ['postgres', 'pgbench' ] and the
+  ## withdbname was true. Be careful that if the withdbname is set to false you
+  ## don't have to define the where clause (aka with the dbname) the tagvalue
+  ## field is used to define custom tags (separated by comas)
+  #
+  ## Structure :
+  ## [[inputs.postgresql_extensible.query]]
+  ##   sqlquery string
+  ##   version string
+  ##   withdbname boolean
+  ##   tagvalue string (coma separated)
+  [[inputs.postgresql_extensible.query]]
+    sqlquery="SELECT * FROM pg_stat_database"
+    version=901
+    withdbname=false
+    tagvalue=""
+  [[inputs.postgresql_extensible.query]]
+    sqlquery="SELECT * FROM pg_stat_bgwriter"
+    version=901
+    withdbname=false
+    tagvalue=""
+`
+
+func (p *Postgresql) SampleConfig() string {
+	return sampleConfig
+}
+
+func (p *Postgresql) Description() string {
+	return "Read metrics from one or many postgresql servers"
+}
+
+func (p *Postgresql) IgnoredColumns() map[string]bool {
+	return ignoredColumns
+}
+
+var localhost = "host=localhost sslmode=disable"
+
+func (p *Postgresql) Gather(acc telegraf.Accumulator) error {
+
+	var sql_query string
+	var query_addon string
+	var db_version int
+	var query string
+	var tag_value string
+
+	if p.Address == "" || p.Address == "localhost" {
+		p.Address = localhost
+	}
+
+	db, err := sql.Open("postgres", p.Address)
+	if err != nil {
+		return err
+	}
+
+	defer db.Close()
+
+	// Retreiving the database version
+
+	query = `select substring(setting from 1 for 3) as version from pg_settings where name='server_version_num'`
+	err = db.QueryRow(query).Scan(&db_version)
+	if err != nil {
+		return err
+	}
+	// We loop in order to process each query
+	// Query is not run if Database version does not match the query version.
+
+	for i := range p.Query {
+		sql_query = p.Query[i].Sqlquery
+		tag_value = p.Query[i].Tagvalue
+
+		if p.Query[i].Withdbname {
+			if len(p.Databases) != 0 {
+				query_addon = fmt.Sprintf(` IN ('%s')`,
+					strings.Join(p.Databases, "','"))
+			} else {
+				query_addon = " is not null"
+			}
+		} else {
+			query_addon = ""
+		}
+		sql_query += query_addon
+
+		if p.Query[i].Version <= db_version {
+			rows, err := db.Query(sql_query)
+			if err != nil {
+				return err
+			}
+
+			defer rows.Close()
+
+			// grab the column information from the result
+			p.OrderedColumns, err = rows.Columns()
+			if err != nil {
+				return err
+			} else {
+				for _, v := range p.OrderedColumns {
+					p.AllColumns = append(p.AllColumns, v)
+				}
+			}
+			p.AdditionalTags = nil
+			if tag_value != "" {
+				tag_list := strings.Split(tag_value, ",")
+				for t := range tag_list {
+					p.AdditionalTags = append(p.AdditionalTags, tag_list[t])
+				}
+			}
+
+			for rows.Next() {
+				err = p.accRow(rows, acc)
+				if err != nil {
+					return err
+				}
+			}
+		}
+	}
+	return nil
+}
+
+type scanner interface {
+	Scan(dest ...interface{}) error
+}
+
+var passwordKVMatcher, _ = regexp.Compile("password=\\S+ ?")
+
+func (p *Postgresql) SanitizedAddress() (_ string, err error) {
+	var canonicalizedAddress string
+	if strings.HasPrefix(p.Address, "postgres://") || strings.HasPrefix(p.Address, "postgresql://") {
+		canonicalizedAddress, err = pq.ParseURL(p.Address)
+		if err != nil {
+			return p.sanitizedAddress, err
+		}
+	} else {
+		canonicalizedAddress = p.Address
+	}
+	p.sanitizedAddress = passwordKVMatcher.ReplaceAllString(canonicalizedAddress, "")
+
+	return p.sanitizedAddress, err
+}
+
+func (p *Postgresql) accRow(row scanner, acc telegraf.Accumulator) error {
+	var columnVars []interface{}
+	var dbname bytes.Buffer
+
+	// this is where we'll store the column name with its *interface{}
+	columnMap := make(map[string]*interface{})
+
+	for _, column := range p.OrderedColumns {
+		columnMap[column] = new(interface{})
+	}
+
+	// populate the array of interface{} with the pointers in the right order
+	for i := 0; i < len(columnMap); i++ {
+		columnVars = append(columnVars, columnMap[p.OrderedColumns[i]])
+	}
+
+	// deconstruct array of variables and send to Scan
+	err := row.Scan(columnVars...)
+
+	if err != nil {
+		return err
+	}
+	if columnMap["datname"] != nil {
+		// extract the database name from the column map
+		dbnameChars := (*columnMap["datname"]).([]uint8)
+		for i := 0; i < len(dbnameChars); i++ {
+			dbname.WriteString(string(dbnameChars[i]))
+		}
+	} else {
+		dbname.WriteString("postgres")
+	}
+
+	var tagAddress string
+	tagAddress, err = p.SanitizedAddress()
+	if err != nil {
+		return err
+	}
+
+	// Process the additional tags
+
+	tags := map[string]string{}
+	tags["server"] = tagAddress
+	tags["db"] = dbname.String()
+	var isATag int
+	fields := make(map[string]interface{})
+	for col, val := range columnMap {
+		_, ignore := ignoredColumns[col]
+		//if !ignore && *val != "" {
+		if !ignore {
+			isATag = 0
+			for tag := range p.AdditionalTags {
+				if col == p.AdditionalTags[tag] {
+					isATag = 1
+					value_type_p := fmt.Sprintf(`%T`, *val)
+					if value_type_p == "[]uint8" {
+						tags[col] = fmt.Sprintf(`%s`, *val)
+					} else if value_type_p == "int64" {
+						tags[col] = fmt.Sprintf(`%v`, *val)
+					}
+				}
+			}
+			if isATag == 0 {
+				fields[col] = *val
+			}
+		}
+	}
+	acc.AddFields("postgresql", fields, tags)
+	return nil
+}
+
+func init() {
+	inputs.Add("postgresql_extensible", func() telegraf.Input {
+		return &Postgresql{}
+	})
+}

plugins/inputs/postgresql_extensible/postgresql_extensible_test.go

@@ -0,0 +1,98 @@
+package postgresql_extensible
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/influxdata/telegraf/testutil"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestPostgresqlGeneratesMetrics(t *testing.T) {
+	if testing.Short() {
+		t.Skip("Skipping integration test in short mode")
+	}
+
+	p := &Postgresql{
+		Address: fmt.Sprintf("host=%s user=postgres sslmode=disable",
+			testutil.GetLocalHost()),
+		Databases: []string{"postgres"},
+		Query: query{
+			{Sqlquery: "select * from pg_stat_database",
+				Version:    901,
+				Withdbname: false,
+				Tagvalue:   ""},
+		},
+	}
+	var acc testutil.Accumulator
+	err := p.Gather(&acc)
+	require.NoError(t, err)
+
+	availableColumns := make(map[string]bool)
+	for _, col := range p.AllColumns {
+		availableColumns[col] = true
+	}
+	intMetrics := []string{
+		"xact_commit",
+		"xact_rollback",
+		"blks_read",
+		"blks_hit",
+		"tup_returned",
+		"tup_fetched",
+		"tup_inserted",
+		"tup_updated",
+		"tup_deleted",
+		"conflicts",
+		"temp_files",
+		"temp_bytes",
+		"deadlocks",
+		"numbackends",
+	}
+
+	floatMetrics := []string{
+		"blk_read_time",
+		"blk_write_time",
+	}
+
+	metricsCounted := 0
+
+	for _, metric := range intMetrics {
+		_, ok := availableColumns[metric]
+		if ok {
+			assert.True(t, acc.HasIntField("postgresql", metric))
+			metricsCounted++
+		}
+	}
+
+	for _, metric := range floatMetrics {
+		_, ok := availableColumns[metric]
+		if ok {
+			assert.True(t, acc.HasFloatField("postgresql", metric))
+			metricsCounted++
+		}
+	}
+
+	assert.True(t, metricsCounted > 0)
+	assert.Equal(t, len(availableColumns)-len(p.IgnoredColumns()), metricsCounted)
+}
+
+func TestPostgresqlIgnoresUnwantedColumns(t *testing.T) {
+	if testing.Short() {
+		t.Skip("Skipping integration test in short mode")
+	}
+
+	p := &Postgresql{
+		Address: fmt.Sprintf("host=%s user=postgres sslmode=disable",
+			testutil.GetLocalHost()),
+	}
+
+	var acc testutil.Accumulator
+
+	err := p.Gather(&acc)
+	require.NoError(t, err)
+
+	for col := range p.IgnoredColumns() {
+		assert.False(t, acc.HasMeasurement(col))
+	}
+}

plugins/inputs/procstat/README.md

@@ -35,6 +35,10 @@ The above configuration would result in output like:
 # Measurements
 Note: prefix can be set by the user, per process.
 
+
+Threads related measurement names:
+- procstat_[prefix_]num_threads value=5
+
 File descriptor related measurement names:
 - procstat_[prefix_]num_fds value=4
 

plugins/inputs/procstat/procstat.go

@@ -43,6 +43,8 @@ var sampleConfig = `
 
   ## Field name prefix
   prefix = ""
+  ## comment this out if you want raw cpu_time stats
+  fielddrop = ["cpu_time_*"]
 `
 
 func (_ *Procstat) SampleConfig() string {

plugins/inputs/procstat/spec_processor.go

@@ -52,6 +52,7 @@ func NewSpecProcessor(
 }
 
 func (p *SpecProcessor) pushMetrics() {
+	p.pushNThreadsStats()
 	p.pushFDStats()
 	p.pushCtxStats()
 	p.pushIOStats()
@@ -60,6 +61,15 @@ func (p *SpecProcessor) pushMetrics() {
 	p.flush()
 }
 
+func (p *SpecProcessor) pushNThreadsStats() error {
+	numThreads, err := p.proc.NumThreads()
+	if err != nil {
+		return fmt.Errorf("NumThreads error: %s\n", err)
+	}
+	p.add("num_threads", numThreads)
+	return nil
+}
+
 func (p *SpecProcessor) pushFDStats() error {
 	fds, err := p.proc.NumFDs()
 	if err != nil {

plugins/inputs/prometheus/README.md

@@ -0,0 +1,75 @@
+# Prometheus Input Plugin
+
+The prometheus input plugin gathers metrics from any webpage
+exposing metrics with Prometheus format
+
+### Configuration:
+
+Example for Kubernetes apiserver
+```toml
+# Get all metrics from Kube-apiserver
+[[inputs.prometheus]]
+  # An array of urls to scrape metrics from.
+  urls = ["http://my-kube-apiserver:8080/metrics"]
+```
+
+You can use more complex configuration
+to filter and some tags
+
+```toml
+# Get all metrics from Kube-apiserver
+[[inputs.prometheus]]
+  # An array of urls to scrape metrics from.
+  urls = ["http://my-kube-apiserver:8080/metrics"]
+  # Get only metrics with "apiserver_" string is in metric name
+  namepass = ["apiserver_"]
+  # Add a metric name prefix
+  name_prefix = "k8s_"
+  # Add tags to be able to make beautiful dashboards
+  [inputs.prometheus.tags]
+    kubeservice = "kube-apiserver"
+```
+
+### Measurements & Fields & Tags:
+
+Measurements and fields could be any thing.
+It just depends of what you're quering.
+
+Example:
+
+```
+# HELP go_gc_duration_seconds A summary of the GC invocation durations.
+# TYPE go_gc_duration_seconds summary
+go_gc_duration_seconds{quantile="0"} 0.00010425500000000001
+go_gc_duration_seconds{quantile="0.25"} 0.000139108
+go_gc_duration_seconds{quantile="0.5"} 0.00015749400000000002
+go_gc_duration_seconds{quantile="0.75"} 0.000331463
+go_gc_duration_seconds{quantile="1"} 0.000667154
+go_gc_duration_seconds_sum 0.0018183950000000002
+go_gc_duration_seconds_count 7
+# HELP go_goroutines Number of goroutines that currently exist.
+# TYPE go_goroutines gauge
+go_goroutines 15
+```
+
+- go_goroutines,
+    - gauge (integer, unit)
+- go_gc_duration_seconds
+    - field3 (integer, bytes)
+
+- All measurements have the following tags:
+    - url=http://my-kube-apiserver:8080/metrics
+- go_goroutines has the following tags:
+    - kubeservice=kube-apiserver
+- go_gc_duration_seconds has the following tags:
+    - kubeservice=kube-apiserver
+
+### Example Output:
+
+Example of output with configuration given above:
+
+```
+$ ./telegraf -config telegraf.conf  -test
+k8s_go_goroutines,kubeservice=kube-apiserver,url=http://my-kube-apiserver:8080/metrics gauge=536 1456857329391929813
+k8s_go_gc_duration_seconds,kubeservice=kube-apiserver,url=http://my-kube-apiserver:8080/metrics 0=0.038002142,0.25=0.041732467,0.5=0.04336492,0.75=0.047271799,1=0.058295811,count=0,sum=208.334617406 1456857329391929813
+```

plugins/inputs/prometheus/parser.go

@@ -0,0 +1,171 @@
+package prometheus
+
+// Parser inspired from
+// https://github.com/prometheus/prom2json/blob/master/main.go
+
+import (
+	"bufio"
+	"bytes"
+	"fmt"
+	"io"
+	"math"
+	"mime"
+
+	"github.com/influxdata/telegraf"
+
+	"github.com/matttproud/golang_protobuf_extensions/pbutil"
+	dto "github.com/prometheus/client_model/go"
+	"github.com/prometheus/common/expfmt"
+)
+
+// PrometheusParser is an object for Parsing incoming metrics.
+type PrometheusParser struct {
+	// PromFormat
+	PromFormat map[string]string
+	// DefaultTags will be added to every parsed metric
+	//	DefaultTags map[string]string
+}
+
+// Parse returns a slice of Metrics from a text representation of a
+// metrics
+func (p *PrometheusParser) Parse(buf []byte) ([]telegraf.Metric, error) {
+	var metrics []telegraf.Metric
+	var parser expfmt.TextParser
+	// parse even if the buffer begins with a newline
+	buf = bytes.TrimPrefix(buf, []byte("\n"))
+	// Read raw data
+	buffer := bytes.NewBuffer(buf)
+	reader := bufio.NewReader(buffer)
+
+	// Get format
+	mediatype, params, err := mime.ParseMediaType(p.PromFormat["Content-Type"])
+	// Prepare output
+	metricFamilies := make(map[string]*dto.MetricFamily)
+	if err == nil && mediatype == "application/vnd.google.protobuf" &&
+		params["encoding"] == "delimited" &&
+		params["proto"] == "io.prometheus.client.MetricFamily" {
+		for {
+			metricFamily := &dto.MetricFamily{}
+			if _, err = pbutil.ReadDelimited(reader, metricFamily); err != nil {
+				if err == io.EOF {
+					break
+				}
+				return nil, fmt.Errorf("reading metric family protocol buffer failed: %s", err)
+			}
+			metricFamilies[metricFamily.GetName()] = metricFamily
+		}
+	} else {
+		metricFamilies, err = parser.TextToMetricFamilies(reader)
+		if err != nil {
+			return nil, fmt.Errorf("reading text format failed: %s", err)
+		}
+		// read metrics
+		for metricName, mf := range metricFamilies {
+			for _, m := range mf.Metric {
+				// reading tags
+				tags := makeLabels(m)
+				/*
+					for key, value := range p.DefaultTags {
+						tags[key] = value
+					}
+				*/
+				// reading fields
+				fields := make(map[string]interface{})
+				if mf.GetType() == dto.MetricType_SUMMARY {
+					// summary metric
+					fields = makeQuantiles(m)
+					fields["count"] = float64(m.GetHistogram().GetSampleCount())
+					fields["sum"] = float64(m.GetSummary().GetSampleSum())
+				} else if mf.GetType() == dto.MetricType_HISTOGRAM {
+					// historgram metric
+					fields = makeBuckets(m)
+					fields["count"] = float64(m.GetHistogram().GetSampleCount())
+					fields["sum"] = float64(m.GetSummary().GetSampleSum())
+
+				} else {
+					// standard metric
+					fields = getNameAndValue(m)
+				}
+				// converting to telegraf metric
+				if len(fields) > 0 {
+					metric, err := telegraf.NewMetric(metricName, tags, fields)
+					if err == nil {
+						metrics = append(metrics, metric)
+					}
+				}
+			}
+		}
+	}
+	return metrics, err
+}
+
+// Parse one line
+func (p *PrometheusParser) ParseLine(line string) (telegraf.Metric, error) {
+	metrics, err := p.Parse([]byte(line + "\n"))
+
+	if err != nil {
+		return nil, err
+	}
+
+	if len(metrics) < 1 {
+		return nil, fmt.Errorf(
+			"Can not parse the line: %s, for data format: prometheus", line)
+	}
+
+	return metrics[0], nil
+}
+
+/*
+// Set default tags
+func (p *PrometheusParser) SetDefaultTags(tags map[string]string) {
+	p.DefaultTags = tags
+}
+*/
+
+// Get Quantiles from summary metric
+func makeQuantiles(m *dto.Metric) map[string]interface{} {
+	fields := make(map[string]interface{})
+	for _, q := range m.GetSummary().Quantile {
+		if !math.IsNaN(q.GetValue()) {
+			fields[fmt.Sprint(q.GetQuantile())] = float64(q.GetValue())
+		}
+	}
+	return fields
+}
+
+// Get Buckets  from histogram metric
+func makeBuckets(m *dto.Metric) map[string]interface{} {
+	fields := make(map[string]interface{})
+	for _, b := range m.GetHistogram().Bucket {
+		fields[fmt.Sprint(b.GetUpperBound())] = float64(b.GetCumulativeCount())
+	}
+	return fields
+}
+
+// Get labels from metric
+func makeLabels(m *dto.Metric) map[string]string {
+	result := map[string]string{}
+	for _, lp := range m.Label {
+		result[lp.GetName()] = lp.GetValue()
+	}
+	return result
+}
+
+// Get name and value from metric
+func getNameAndValue(m *dto.Metric) map[string]interface{} {
+	fields := make(map[string]interface{})
+	if m.Gauge != nil {
+		if !math.IsNaN(m.GetGauge().GetValue()) {
+			fields["gauge"] = float64(m.GetGauge().GetValue())
+		}
+	} else if m.Counter != nil {
+		if !math.IsNaN(m.GetGauge().GetValue()) {
+			fields["counter"] = float64(m.GetCounter().GetValue())
+		}
+	} else if m.Untyped != nil {
+		if !math.IsNaN(m.GetGauge().GetValue()) {
+			fields["value"] = float64(m.GetUntyped().GetValue())
+		}
+	}
+	return fields
+}

plugins/inputs/prometheus/parser_test.go

@@ -0,0 +1,175 @@
+package prometheus
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+var exptime = time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
+
+const validUniqueGauge = `# HELP cadvisor_version_info A metric with a constant '1' value labeled by kernel version, OS version, docker version, cadvisor version & cadvisor revision.
+# TYPE cadvisor_version_info gauge
+cadvisor_version_info{cadvisorRevision="",cadvisorVersion="",dockerVersion="1.8.2",kernelVersion="3.10.0-229.20.1.el7.x86_64",osVersion="CentOS Linux 7 (Core)"} 1
+`
+
+const validUniqueCounter = `# HELP get_token_fail_count Counter of failed Token() requests to the alternate token source
+# TYPE get_token_fail_count counter
+get_token_fail_count 0
+`
+
+const validUniqueLine = `# HELP get_token_fail_count Counter of failed Token() requests to the alternate token source
+`
+
+const validUniqueSummary = `# HELP http_request_duration_microseconds The HTTP request latencies in microseconds.
+# TYPE http_request_duration_microseconds summary
+http_request_duration_microseconds{handler="prometheus",quantile="0.5"} 552048.506
+http_request_duration_microseconds{handler="prometheus",quantile="0.9"} 5.876804288e+06
+http_request_duration_microseconds{handler="prometheus",quantile="0.99"} 5.876804288e+06
+http_request_duration_microseconds_sum{handler="prometheus"} 1.8909097205e+07
+http_request_duration_microseconds_count{handler="prometheus"} 9
+`
+
+const validUniqueHistogram = `# HELP apiserver_request_latencies Response latency distribution in microseconds for each verb, resource and client.
+# TYPE apiserver_request_latencies histogram
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="125000"} 1994
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="250000"} 1997
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="500000"} 2000
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="1e+06"} 2005
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="2e+06"} 2012
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="4e+06"} 2017
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="8e+06"} 2024
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="+Inf"} 2025
+apiserver_request_latencies_sum{resource="bindings",verb="POST"} 1.02726334e+08
+apiserver_request_latencies_count{resource="bindings",verb="POST"} 2025
+`
+
+const validData = `# HELP cadvisor_version_info A metric with a constant '1' value labeled by kernel version, OS version, docker version, cadvisor version & cadvisor revision.
+# TYPE cadvisor_version_info gauge
+cadvisor_version_info{cadvisorRevision="",cadvisorVersion="",dockerVersion="1.8.2",kernelVersion="3.10.0-229.20.1.el7.x86_64",osVersion="CentOS Linux 7 (Core)"} 1
+# HELP go_gc_duration_seconds A summary of the GC invocation durations.
+# TYPE go_gc_duration_seconds summary
+go_gc_duration_seconds{quantile="0"} 0.013534896000000001
+go_gc_duration_seconds{quantile="0.25"} 0.02469263
+go_gc_duration_seconds{quantile="0.5"} 0.033727822000000005
+go_gc_duration_seconds{quantile="0.75"} 0.03840335
+go_gc_duration_seconds{quantile="1"} 0.049956604
+go_gc_duration_seconds_sum 1970.341293002
+go_gc_duration_seconds_count 65952
+# HELP http_request_duration_microseconds The HTTP request latencies in microseconds.
+# TYPE http_request_duration_microseconds summary
+http_request_duration_microseconds{handler="prometheus",quantile="0.5"} 552048.506
+http_request_duration_microseconds{handler="prometheus",quantile="0.9"} 5.876804288e+06
+http_request_duration_microseconds{handler="prometheus",quantile="0.99"} 5.876804288e+06
+http_request_duration_microseconds_sum{handler="prometheus"} 1.8909097205e+07
+http_request_duration_microseconds_count{handler="prometheus"} 9
+# HELP get_token_fail_count Counter of failed Token() requests to the alternate token source
+# TYPE get_token_fail_count counter
+get_token_fail_count 0
+# HELP apiserver_request_latencies Response latency distribution in microseconds for each verb, resource and client.
+# TYPE apiserver_request_latencies histogram
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="125000"} 1994
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="250000"} 1997
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="500000"} 2000
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="1e+06"} 2005
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="2e+06"} 2012
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="4e+06"} 2017
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="8e+06"} 2024
+apiserver_request_latencies_bucket{resource="bindings",verb="POST",le="+Inf"} 2025
+apiserver_request_latencies_sum{resource="bindings",verb="POST"} 1.02726334e+08
+apiserver_request_latencies_count{resource="bindings",verb="POST"} 2025
+`
+
+const prometheusMulti = `
+cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
+cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
+cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
+cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
+cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
+cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
+cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
+`
+
+const prometheusMultiSomeInvalid = `
+cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
+cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
+cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
+cpu,cpu=cpu3, host=foo,datacenter=us-east usage_idle=99,usage_busy=1
+cpu,cpu=cpu4 , usage_idle=99,usage_busy=1
+cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
+`
+
+func TestParseValidPrometheus(t *testing.T) {
+	parser := PrometheusParser{}
+
+	// Gauge value
+	metrics, err := parser.Parse([]byte(validUniqueGauge))
+	assert.NoError(t, err)
+	assert.Len(t, metrics, 1)
+	assert.Equal(t, "cadvisor_version_info", metrics[0].Name())
+	assert.Equal(t, map[string]interface{}{
+		"gauge": float64(1),
+	}, metrics[0].Fields())
+	assert.Equal(t, map[string]string{
+		"osVersion":     "CentOS Linux 7 (Core)",
+		"dockerVersion": "1.8.2",
+		"kernelVersion": "3.10.0-229.20.1.el7.x86_64",
+	}, metrics[0].Tags())
+
+	// Counter value
+	//parser.SetDefaultTags(map[string]string{"mytag": "mytagvalue"})
+	metrics, err = parser.Parse([]byte(validUniqueCounter))
+	assert.NoError(t, err)
+	assert.Len(t, metrics, 1)
+	assert.Equal(t, "get_token_fail_count", metrics[0].Name())
+	assert.Equal(t, map[string]interface{}{
+		"counter": float64(0),
+	}, metrics[0].Fields())
+	assert.Equal(t, map[string]string{}, metrics[0].Tags())
+
+	// Summary data
+	//parser.SetDefaultTags(map[string]string{})
+	metrics, err = parser.Parse([]byte(validUniqueSummary))
+	assert.NoError(t, err)
+	assert.Len(t, metrics, 1)
+	assert.Equal(t, "http_request_duration_microseconds", metrics[0].Name())
+	assert.Equal(t, map[string]interface{}{
+		"0.5":   552048.506,
+		"0.9":   5.876804288e+06,
+		"0.99":  5.876804288e+06,
+		"count": 0.0,
+		"sum":   1.8909097205e+07,
+	}, metrics[0].Fields())
+	assert.Equal(t, map[string]string{"handler": "prometheus"}, metrics[0].Tags())
+
+	// histogram data
+	metrics, err = parser.Parse([]byte(validUniqueHistogram))
+	assert.NoError(t, err)
+	assert.Len(t, metrics, 1)
+	assert.Equal(t, "apiserver_request_latencies", metrics[0].Name())
+	assert.Equal(t, map[string]interface{}{
+		"500000": 2000.0,
+		"count":  2025.0,
+		"sum":    0.0,
+		"250000": 1997.0,
+		"2e+06":  2012.0,
+		"4e+06":  2017.0,
+		"8e+06":  2024.0,
+		"+Inf":   2025.0,
+		"125000": 1994.0,
+		"1e+06":  2005.0,
+	}, metrics[0].Fields())
+	assert.Equal(t,
+		map[string]string{"verb": "POST", "resource": "bindings"},
+		metrics[0].Tags())
+
+}
+
+func TestParseLineInvalidPrometheus(t *testing.T) {
+	parser := PrometheusParser{}
+	metric, err := parser.ParseLine(validUniqueLine)
+	assert.NotNil(t, err)
+	assert.Nil(t, metric)
+
+}

plugins/inputs/prometheus/prometheus.go

@@ -1,31 +1,42 @@
 package prometheus
 
 import (
+	"crypto/tls"
 	"errors"
 	"fmt"
 	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/plugins/inputs"
-	"github.com/prometheus/common/expfmt"
+	"io/ioutil"
-	"github.com/prometheus/common/model"
+	"net"
-	"io"
 	"net/http"
 	"sync"
+	"time"
 )
 
 type Prometheus struct {
 	Urls []string
+
+	// Use SSL but skip chain & host verification
+	InsecureSkipVerify bool
+	// Bearer Token authorization file path
+	BearerToken string `toml:"bearer_token"`
 }
 
 var sampleConfig = `
   ## An array of urls to scrape metrics from.
   urls = ["http://localhost:9100/metrics"]
+
+  ## Use SSL but skip chain & host verification
+  # insecure_skip_verify = false
+  ## Use bearer token for authorization
+  # bearer_token = /path/to/bearer/token
 `
 
-func (r *Prometheus) SampleConfig() string {
+func (p *Prometheus) SampleConfig() string {
 	return sampleConfig
 }
 
-func (r *Prometheus) Description() string {
+func (p *Prometheus) Description() string {
 	return "Read metrics from one or many prometheus clients"
 }
 
@@ -33,16 +44,16 @@ var ErrProtocolError = errors.New("prometheus protocol error")
 
 // Reads stats from all configured servers accumulates stats.
 // Returns one of the errors encountered while gather stats (if any).
-func (g *Prometheus) Gather(acc telegraf.Accumulator) error {
+func (p *Prometheus) Gather(acc telegraf.Accumulator) error {
 	var wg sync.WaitGroup
 
 	var outerr error
 
-	for _, serv := range g.Urls {
+	for _, serv := range p.Urls {
 		wg.Add(1)
 		go func(serv string) {
 			defer wg.Done()
-			outerr = g.gatherURL(serv, acc)
+			outerr = p.gatherURL(serv, acc)
 		}(serv)
 	}
 
@@ -51,8 +62,43 @@ func (g *Prometheus) Gather(acc telegraf.Accumulator) error {
 	return outerr
 }
 
-func (g *Prometheus) gatherURL(url string, acc telegraf.Accumulator) error {
+var tr = &http.Transport{
-	resp, err := http.Get(url)
+	ResponseHeaderTimeout: time.Duration(3 * time.Second),
+}
+
+var client = &http.Client{
+	Transport: tr,
+	Timeout:   time.Duration(4 * time.Second),
+}
+
+func (p *Prometheus) gatherURL(url string, acc telegraf.Accumulator) error {
+	collectDate := time.Now()
+	var req, err = http.NewRequest("GET", url, nil)
+	req.Header = make(http.Header)
+	var token []byte
+	var resp *http.Response
+
+	var rt http.RoundTripper = &http.Transport{
+		Dial: (&net.Dialer{
+			Timeout:   5 * time.Second,
+			KeepAlive: 30 * time.Second,
+		}).Dial,
+		TLSHandshakeTimeout: 5 * time.Second,
+		TLSClientConfig: &tls.Config{
+			InsecureSkipVerify: p.InsecureSkipVerify,
+		},
+		ResponseHeaderTimeout: time.Duration(3 * time.Second),
+	}
+
+	if p.BearerToken != "" {
+		token, err = ioutil.ReadFile(p.BearerToken)
+		if err != nil {
+			return err
+		}
+		req.Header.Set("Authorization", "Bearer "+string(token))
+	}
+
+	resp, err = rt.RoundTrip(req)
 	if err != nil {
 		return fmt.Errorf("error making HTTP request to %s: %s", url, err)
 	}
@@ -60,38 +106,33 @@ func (g *Prometheus) gatherURL(url string, acc telegraf.Accumulator) error {
 	if resp.StatusCode != http.StatusOK {
 		return fmt.Errorf("%s returned HTTP status %s", url, resp.Status)
 	}
-	format := expfmt.ResponseFormat(resp.Header)
 
-	decoder := expfmt.NewDecoder(resp.Body, format)
+	body, err := ioutil.ReadAll(resp.Body)
-
+	if err != nil {
-	options := &expfmt.DecodeOptions{
+		return fmt.Errorf("error reading body: %s", err)
-		Timestamp: model.Now(),
-	}
-	sampleDecoder := &expfmt.SampleDecoder{
-		Dec:  decoder,
-		Opts: options,
 	}
 
-	for {
+	// Headers
-		var samples model.Vector
+	headers := make(map[string]string)
-		err := sampleDecoder.Decode(&samples)
+	for key, value := range headers {
-		if err == io.EOF {
+		headers[key] = value
-			break
+	}
-		} else if err != nil {
+
-			return fmt.Errorf("error getting processing samples for %s: %s",
+	// Prepare Prometheus parser config
-				url, err)
+	promparser := PrometheusParser{
-		}
+		PromFormat: headers,
-		for _, sample := range samples {
+	}
-			tags := make(map[string]string)
+
-			for key, value := range sample.Metric {
+	metrics, err := promparser.Parse(body)
-				if key == model.MetricNameLabel {
+	if err != nil {
-					continue
+		return fmt.Errorf("error getting processing samples for %s: %s",
-				}
+			url, err)
-				tags[string(key)] = string(value)
+	}
-			}
+	// Add (or not) collected metrics
-			acc.Add("prometheus_"+string(sample.Metric[model.MetricNameLabel]),
+	for _, metric := range metrics {
-				float64(sample.Value), tags)
+		tags := metric.Tags()
-		}
+		tags["url"] = url
+		acc.AddFields(metric.Name(), metric.Fields(), tags, collectDate)
 	}
 
 	return nil

plugins/inputs/prometheus/prometheus_test.go

@@ -40,16 +40,6 @@ func TestPrometheusGeneratesMetrics(t *testing.T) {
 	err := p.Gather(&acc)
 	require.NoError(t, err)
 
-	expected := []struct {
+	assert.True(t, acc.HasFloatField("go_gc_duration_seconds", "count"))
-		name  string
+	assert.True(t, acc.HasFloatField("go_goroutines", "gauge"))
-		value float64
-		tags  map[string]string
-	}{
-		{"prometheus_go_gc_duration_seconds_count", 7, map[string]string{}},
-		{"prometheus_go_goroutines", 15, map[string]string{}},
-	}
-
-	for _, e := range expected {
-		assert.True(t, acc.HasFloatField(e.name, "value"))
-	}
 }