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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.

Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current 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")
""