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README.md

Telegraf customization tool

Telegraf's custom_builder is a tool to select the plugins compiled into the Telegraf binary. By doing so, Telegraf can become smaller, saving both disk space and memory if only a sub-set of plugins is selected.

Building

To build custom_builder run the following command:

# make build_tools

The resulting binary is located in the tools/custom_builder folder.

Running

The easiest way of building a customized Telegraf is to use your Telegraf configuration file(s). Assuming your configuration is in /etc/telegraf/telegraf.conf you can run

# ./tools/custom_builder/custom_builder --config /etc/telegraf/telegraf.conf

to build a Telegraf binary tailored to your configuration. You can also specify a configuration directory similar to Telegraf itself. To additionally use the configurations in /etc/telegraf/telegraf.d run

# ./tools/custom_builder/custom_builder                      \
    --config     /etc/telegraf/telegraf.conf \
    --config-dir /etc/telegraf/telegraf.d

Configurations can also be retrieved from remote locations just like for Telegraf.

# ./tools/custom_builder/custom_builder --config http://myserver/telegraf.conf

will download the configuration from myserver.

The --config and --config-dir option can be used multiple times. In case you want to deploy Telegraf to multiple systems with different configurations, simply specify the super-set of all configurations you have. custom_builder will figure out the list for you

# ./tools/custom_builder/custom_builder             \
    --config system1/telegraf.conf  \
    --config system2/telegraf.conf  \
    --config ...                    \
    --config systemN/telegraf.conf  \
    --config-dir system1/telegraf.d \
    --config-dir system2/telegraf.d \
    --config-dir ...                \
    --config-dir systemN/telegraf.d

The Telegraf customization uses Golang's build-tags to select the set of plugins. To see which tags are set use the --tags flag.

To get more help run

# ./tools/custom_builder/custom_builder --help

Notes

Please make sure to include all parsers you intend to use and check the enabled-plugins list.

Additional plugins can potentially be enabled automatically due to dependencies without being shown in the enabled-plugins list.