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nstat plugin cleanups and formatting 

closes #1104
closes #1138
This commit is contained in:
Cameron Sparr 2016-05-17 17:00:46 +01:00
parent 7557056a31
commit dc89f029ad
4 changed files with 36 additions and 21 deletions
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1
README.md
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@ -186,6 +186,7 @@ Currently implemented sources:
* [net_response](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/net_response) * [net_response](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/net_response)
* [nginx](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/nginx) * [nginx](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/nginx)
* [nsq](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/nsq) * [nsq](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/nsq)
* [nstat](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/nstat)
* [ntpq](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/ntpq) * [ntpq](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/ntpq)
* [phpfpm](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/phpfpm) * [phpfpm](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/phpfpm)
* [phusion passenger](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/passenger) * [phusion passenger](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/passenger)

12
etc/telegraf.conf
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@ -940,6 +940,18 @@
# endpoints = ["http://localhost:4151"] # endpoints = ["http://localhost:4151"]
# # Collect kernel snmp counters and network interface statistics
# [[inputs.nstat]]
# ## file paths for proc files. If empty default paths will be used:
# ## /proc/net/netstat, /proc/net/snmp, /proc/net/snmp6
# ## These can also be overridden with env variables, see README.
# proc_net_netstat = ""
# proc_net_snmp = ""
# proc_net_snmp6 = ""
# ## dump metrics with 0 values too
# dump_zeros = true
# # Get standard NTP query metrics, requires ntpq executable. # # Get standard NTP query metrics, requires ntpq executable.
# [[inputs.ntpq]] # [[inputs.ntpq]]
# ## If false, set the -n ntpq flag. Can reduce metric gather time. # ## If false, set the -n ntpq flag. Can reduce metric gather time.

27
plugins/inputs/nstat/README.md
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@ -1,27 +1,28 @@
## Nstat input plugin ## Nstat input plugin
Plugin collects network metrics from ```/proc/net/netstat```, ```/proc/net/snmp``` and ```/proc/net/snmp6``` files Plugin collects network metrics from `/proc/net/netstat`, `/proc/net/snmp` and `/proc/net/snmp6` files
### Configuration ### Configuration
The plugin firstly tries to read file paths from config values The plugin firstly tries to read file paths from config values
if it is empty, then it reads from env variables. if it is empty, then it reads from env variables.
* ```PROC_NET_NETSTAT``` * `PROC_NET_NETSTAT`
* ```PROC_NET_SNMP``` * `PROC_NET_SNMP`
* ```PROC_NET_SNMP6``` * `PROC_NET_SNMP6`
If these variables are also not set, If these variables are also not set,
then it tries to read the proc root from env - ```PROC_ROOT```, then it tries to read the proc root from env - `PROC_ROOT`,
and sets ```/proc``` as a root path if ```PROC_ROOT``` is also empty. and sets `/proc` as a root path if `PROC_ROOT` is also empty.
Then appends default file paths: Then appends default file paths:
* ```/net/netstat``` * `/net/netstat`
* ```/net/snmp``` * `/net/snmp`
* ```/net/snmp6``` * `/net/snmp6`
So if nothing is given, no paths in config and in env vars, the plugin takes the default paths. So if nothing is given, no paths in config and in env vars, the plugin takes the default paths.
* ```/proc/net/netstat``` * `/proc/net/netstat`
* ```/proc/net/snmp``` * `/proc/net/snmp`
* ```/proc/net/snmp6``` * `/proc/net/snmp6`
The sample config file The sample config file
```toml ```toml

17
plugins/inputs/nstat/nstat.go
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@ -40,17 +40,18 @@ type Nstat struct {
} }
var sampleConfig = ` var sampleConfig = `
# file paths ## file paths for proc files. If empty default paths will be used:
# e.g: /proc/net/netstat, /proc/net/snmp, /proc/net/snmp6 ## /proc/net/netstat, /proc/net/snmp, /proc/net/snmp6
proc_net_netstat = "" ## These can also be overridden with env variables, see README.
proc_net_snmp = "" proc_net_netstat = ""
proc_net_snmp6 = "" proc_net_snmp = ""
# dump metrics with 0 values too proc_net_snmp6 = ""
dump_zeros = true ## dump metrics with 0 values too
dump_zeros = true
` `
func (ns *Nstat) Description() string { func (ns *Nstat) Description() string {
return "Collect network metrics from '/proc/net/netstat', '/proc/net/snmp' & '/proc/net/snmp6' files" return "Collect kernel snmp counters and network interface statistics"
} }
func (ns *Nstat) SampleConfig() string { func (ns *Nstat) SampleConfig() string {