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Sumo Logic

Configuring sourceCategory and sourceHost using variables

Collector versions 19.216-22 and later allow you to define Source Category and Source Host metadata values with system environment variables from the host machine.

When configuring your Source, specify the system environment variables by prepending sys. and wrapping them in double curly brackets {{}} in this form:

{{sys.VAR_NAME}}

Where VAR_NAME is an environment variable name, for example:

{{sys.PATH}}

You can use multiple variables, for example:

{{sys.PATH}}-{{sys.YourEnvVar}}

environment variable usage.png

You can incorporate text in the metadata expression, for example:

AnyTextYouWant_{{sys.PATH}}_{{sys.YourEnvVar}}

If a user-defined variable doesn’t exist, that portion of the metadata field will be blank.