As an advanced use case, you may wish to configure environment variables in your {agent} policy. This is useful, for example, if there are configuration details about the system on which {agent} is running that you may not know in advance. As a solution, you may want to configure environment variables to be interpreted by {agent} at runtime, using information from the running environment.
For {fleet}-managed {agents}, you can configure environment variables using the Env Provider. Refer to Variables and conditions in input configurations in the standalone {agent} documentation for more detail.