populate cluster config from client.authentication.k8s.io/exec extension

[wkloucek]

What type of PR is this?

/kind bug

What this PR does / why we need it:

populate ExecCredentialSpec.Cluster.config from the client.authentication.k8s.io/exec extension

Which issue(s) this PR fixes:

Fixes #2395

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Adds cluster config information to the exec credential provider if the client.authentication.k8s.io/exec extension is provided.

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[linux-foundation-easycla[bot]]

• :x: - login: @wkloucek / name: Willy Kloucek . The commit (6a0df45ac724850747a73d633513746c8659efdf) is not authorized under a signed CLA. Please click here to be authorized. For further assistance with EasyCLA, please submit a support request ticket.

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: wkloucek Once this PR has been reviewed and has the lgtm label, please assign roycaihw for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

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• kubernetes/base/OWNERS

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[k8s-ci-robot]

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[roycaihw]

Please sign the CLA. Also please add a unit test for this.

[ma-ts]

Hi! Can this be implemented? @wkloucek: if the CLA is prohibited by your organisation, more than happy to re-contribute from our organisation.

Merging this also fixes issues with the Azure CLI, connecting on-prem clusters to Azure (see https://github.com/Azure/azure-cli-extensions/issues/8788).

Validated that this fixes the issue there as well (by patching the function call manually)

[wkloucek]

Hi! Can this be implemented? @wkloucek: if the CLA is prohibited by your organisation, more than happy to re-contribute from our organisation.

I'm currently waiting for my company to register for the CLA. I didn't hear back how long it's gonna take though

[ma-ts]

Can I republish? More than happy to give you all credits

[wkloucek]

Unfortunately, I couldn't get the CLA setup so far. Also meanwhile this is not needed any longer on my side.

@ma-ts already picked those changes up in https://github.com/kubernetes-client/python/pull/2399, therefore I'm gonna close here