Refresh exec-based API credentials when they expire

[harryharpel]

This issue is to track the problem found here in the non-async library kubernetes-client/python#741.

Currently the authorization token/api key is only refreshed when the config is initially loaded and the client does not support refreshing this credential when it expires.

This can be fixed in this library in a very similar way as it was fixed in the non-async library. Non-async fix: kubernetes-client/python-base#250.

[tomplus]

Thanks for the issue. You are right, refreshing credentials is implemented for providers: oidc, gcp and in the in-cluster config.

[harryharpel]

I have a forked version that I have used in projects that fixes this. I will submit an upstream PR soon. 🙂

[tomplus]

It'd be fantastic if you could contribute. Thanks.