Use GCP SA json for auth

[NaMNDV]

/kind migration

Testcase Migration for GCP Provider.

Partial revert of #641 to use GCP SA json as secret from GitHub Secrets and use that to authenticate GCP Secrets.

Since GCP Prow is migrating to EKS Prow, this is a temporary workaround to make sure the smooth transition of test cases, upon clarity we will build a permanent solution to use federated WI in EKS Prow.

• squashed commits
• includes documentation
• adds unit tests

[k8s-ci-robot]

@NaMNDV: The label(s) kind/migration cannot be applied, because the repository doesn't have them.

In response to this:

/kind migration

Testcase Migration for GCP Provider.

Partial revert of #641 to use GCP SA json as secret from GitHub Secrets and use that to authenticate GCP Secrets.

Since GCP Prow is migrating to EKS Prow, this is a temporary workaround to make sure the smooth transition of test cases, upon clarity we will build a permanent solution to use federated WI in EKS Prow.

• squashed commits
• includes documentation
• adds unit tests

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: NaMNDV
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[k8s-ci-robot]

Hi @NaMNDV. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[BenTheElder]

Since GCP Prow is migrating to EKS Prow,

That's not it, we're moving jobs to either a GKE cluster running in kubernetes.io (SIG K8s Infra) or an EKS cluster running in SIG K8s Infra's accounts, just not GKE clusters in google.com, or any other company internal non-community-operated assets.

full context: https://groups.google.com/a/kubernetes.io/g/dev/c/p6PAML90ZOU/m/11sDguoxAQAJ

[BenTheElder]

see also: #1583

[aramase]

Since GCP Prow is migrating to EKS Prow,

That's not it, we're moving jobs to either a GKE cluster running in kubernetes.io (SIG K8s Infra) or an EKS cluster running in SIG K8s Infra's accounts, just not GKE clusters in google.com, or any other company internal non-community-operated assets.

full context: https://groups.google.com/a/kubernetes.io/g/dev/c/p6PAML90ZOU/m/11sDguoxAQAJ

@NaMNDV could you look at this? If you use the GKE cluster, you should be able to use workload identity?

[aramase]

@NaMNDV ping on this! Have you had a chance to look at the required resources to re-enable CI?