Environment variables

Environment variables

Variable	Default	Description
SECRET_KEY	(required)	Flask session signing key
GLUETUN_HOST	host.docker.internal	Gluetun HTTP proxy host
GLUETUN_PROXY_PORT	8887	Gluetun HTTP proxy port
GLUETUN_CONTAINER	gluetun-airvpn	Gluetun container name
COMPOSE_DIR	/compose	Path (inside the container) to the Gluetun compose directory
CONTROL_BACKEND	auto	Control backend: automatic detection, or compose / unraid to force a mode
UNRAID_TEMPLATE_DIR	/boot/config/plugins/dockerMan/templates-user	Unraid DockerMan template directory, mounted writable when CONTROL_BACKEND=unraid or when the Gluetun container is detected as DockerMan-managed
DATA_DIR	/data	SQLite database directory
OPENVPN_CONFIG_DIR	/openvpn	Directory writable by Companion for Custom OpenVPN files
OPENVPN_CONTAINER_DIR	/gluetun/openvpn	Equivalent path as seen from the Gluetun container
DOCKER_HOST	(local socket)	Set to tcp://socket-proxy:2375 when using the Tecnativa socket proxy
METRICS_TOKEN	(empty)	If set, the /metrics endpoint requires Authorization: Bearer <token>; leave empty for open access (standard for internal networks)

Benchmark parameters (streams, duration, warm-up, retry…) are configured in the UI → Settings.

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