Environment variables
Engine linkage (panel .env)
| Variable | Purpose |
|---|---|
ENGINE_API_URL |
Base URL, often http://127.0.0.1:9090 on single-node installs |
ENGINE_INTERNAL_KEY |
Shared secret between panel and Engine |
ENGINE_API_SECRET |
Signed requests (e.g. web terminal JWT) |
Mismatch causes silent failures when creating sites or renewing certificates.
Licensing
| Variable | Purpose |
|---|---|
LICENSE_SERVER_URL |
Central hub (e.g. https://panelze.com) for online validation |
LICENSE_KEY |
Optional in .env; many teams paste in the UI instead |
LICENSE_SERVER_API_SECRET |
Bearer token matching the hub |
See License server hub.