backendconfig: add GRPC and GRPC_WITH_TLS health check support;

[manishprivet]

What

Add support for GRPC and GRPC_WITH_TLS in BackendConfig CRD

Why

GCP Healthcheck natively supports grpc protocol but BackendConfig does not (#1502).

Disclaimer: I used a bit of AI help for this PR, so please review thoroughly 🙇🏼

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: manishprivet
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[linux-foundation-easycla]

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• ✅ login: manishprivet / name: Manish Kumar ⛄ (b8d5fb9)

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[k8s-ci-robot]

Hi @manishprivet. Thanks for your PR.

I'm waiting for a github.com 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.

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/lifecycle stale

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/lifecycle rotten

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/close

[k8s-ci-robot]

@k8s-triage-robot: Closed this PR.

Details

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the PR is closed

You can:

• Reopen this PR with /reopen
• Mark this PR as fresh with /remove-lifecycle rotten
• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/close

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