Introduce GitHub Models support

[geoand]

GitHub Models offers a bunch of models using the OpenAI API.
To consume the API a GitHub API key is needed.

It would be nice if we had an extension that integrates GitHub OIDC

[geoand]

cc @sberyozkin

[sberyozkin]

Oh sorry, @geoand, just noticed it... Keeping fingers crossed it should work out of the box already, since we have Github support in Quarkus, the tricky question if Github allows using the user access tokens, I'll experiment soon enough

[geoand]

Thanks

[sberyozkin]

Hi @geoand
Right now, there appears to be no way of using GitHub OAuth2 tokens to access GitHub models, I think they need to add a scope here, https://docs.github.com/en/apps/oauth-apps/building-oauth-apps/scopes-for-oauth-apps#available-scopes, so that Quarkus can request a permission to access the models on behalf of the user authenticated to Quarkus with Github...
I can try it to access them without requesting a model specific scope, but I can't find anywhere the description of their REST endpoints :-)

[geoand]

I can try it to access them without requesting a model specific scope, but I can't find anywhere the description of their REST endpoints :-)

Which endpoints are you referring to?

[sberyozkin]

@geoand Sorry, similar to those available for other remote models where a token is passed as HTTP Authorization header's Bearer scheme value, that would let me test if I can pass a Github OAuth2 token to such an endpoint and get something in return.

[geoand]

Interesting