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config: parse environment variables in the config file

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closes #663
This commit is contained in:
Cameron Sparr
2016-04-01 13:53:34 -06:00
parent 9211d22b2b
commit 8e041420cd
6 changed files with 132 additions and 25 deletions
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48
etc/telegraf.conf
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@@ -8,12 +8,18 @@
#
# 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
@@ -1114,27 +1120,6 @@
# SERVICE INPUT PLUGINS #
###############################################################################
# # Generic UDP listener
# [[inputs.udp_listener]]
# ## Address and port to host UDP listener on
# service_address = ":8092"
#
# ## Number of UDP messages allowed to queue up. Once filled, the
# ## UDP listener will start dropping packets.
# allowed_pending_messages = 10000
#
# ## UDP packet size for the server to listen for. This will depend
# ## on the size of the packets that the client is sending, which is
# ## usually 1500 bytes, but can be as large as 65,535 bytes.
# udp_packet_size = 1500
#
# ## 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"
# # A Github Webhook Event collector
# [[inputs.github_webhooks]]
# ## Address and port to host Webhook listener on
@@ -1277,3 +1262,24 @@
# ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
# data_format = "influx"
# # Generic UDP listener
# [[inputs.udp_listener]]
# ## Address and port to host UDP listener on
# service_address = ":8092"
#
# ## Number of UDP messages allowed to queue up. Once filled, the
# ## UDP listener will start dropping packets.
# allowed_pending_messages = 10000
#
# ## UDP packet size for the server to listen for. This will depend
# ## on the size of the packets that the client is sending, which is
# ## usually 1500 bytes, but can be as large as 65,535 bytes.
# udp_packet_size = 1500
#
# ## 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"