OIDC client QUARKUS_OIDC_CLIENT_GRANT_OPTIONS__GRANT_NAME_ options

[NMichas]

For a password grant type, I'm trying to pass username and password as environment variables. I've tried various naming combinations but everything seems to be ignored, resulting in:
io.quarkus.oidc.client.OidcClientException: {"error":"invalid_request","error_description":"Missing parameter: username"}

Reading the relevant documentation, it seems like passing the following should work (but doesn't):
QUARKUS_OIDC_CLIENT_GRANT_OPTIONS__PASSWORD_USERNAME=myuser

Passing it as a parameter with -D works fine, e.g.
-Dquarkus.oidc-client.grant-options.password.username=myuser

Could someone please point me to the right direction?

[quarkus-bot[bot]]

/cc @pedroigor (oidc), @sberyozkin (oidc)

[sberyozkin]

@NMichas As Far as I understand, due to the slash in the quarkus.oidc-client configuration namespace, for it to pick up env properties, one need to declare a property like this quarkus.oidc-client.grant-options.password.username= and that should be enough for QUARKUS_OIDC_CLIENT_GRANT_OPTIONS__PASSWORD_USERNAME=myuser be effective, give it a try please

CC-ing Roberto, @radcortez as well

[NMichas]

Thanks @sberyozkin, you mean to define this property in application properties? I tried adding it to my application.yaml as:

And then make sure the env variables are indeed passed (it runs in Kubernetes):

Now I get:
io.quarkus.oidc.client.OidcClientException: {"error":"invalid_grant","error_description":"Invalid user credentials"}

So, I guess Quarkus is using the dummy values I provided in application.yaml and the environment variables are still ignored.

[dmlloyd]

The environment variable in this case is incorrect; remove the double __ and replace it with a single _ and it should work.

Apart from a few specific circumstances, env vars cannot establish configuration, they can only override configuration.

[NMichas]

Indeed, that worked, thanks a lot!

[sberyozkin]

Thanks @dmlloyd, @NMichas