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Caution

Grafana Alloy is the new name for our distribution of the OTel collector. Grafana Agent has been deprecated and is in Long-Term Support (LTS) through October 31, 2025. Grafana Agent will reach an End-of-Life (EOL) on November 1, 2025. Read more about why we recommend migrating to Grafana Alloy.

This is documentation for the next version of Agent. For the latest stable release, go to the latest version.

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Open source

env

The env function gets the value of an environment variable from the system Grafana Agent Flow is running on. If the environment variable does not exist, env returns an empty string.

Examples

> env("HOME")
"/home/grafana-agent"

> env("DOES_NOT_EXIST")
""