set the value of auth_jwt_key implicitely

[farzadam]

I try to use this module. when I explicitly set the value for auth_jwt_key it works just fine. But if I set it as: auth_jwt_key $public_key; which is set by a js module beforehand, I get the error: nginx: [error] failed to open public key file
is there a way to solve this issue?

[JoshMcCullough]

Sorry for the delay in response. We'll look into allowing variables to be used in the auth_jwt_key directive and others where it might make sense.

[AndreMiras]

If what we want to achieve is retrieving from an environment variable, the Nginx official Docker image runs envsubst as part of the entrypoint.
This is a common way for filing config from environment variables.
https://github.com/nginxinc/docker-nginx/blob/1.25.2/entrypoint/20-envsubst-on-templates.sh#L31-L74