Feature: Support custom TLS certificates when using HTTPS to the backends

[ghost]

I'd like to be able to configure the certificates that the LB uses to re-encrypt traffic to the backend services. The use case being that I want to be able to build a strong cryptographic identity of north-south traffic (managed by GCE) into my service mesh.

Google already supports defining which scheme to use through the service.alpha.kubernetes.io/app-protocols annotation, however our service mesh does not trust that traffic; it does not trust the certificate it originates from.

The Service Mesh in question here is Consul - and I've raised an issue with them too to determine how they can better actually support external Ingress controllers, however the abstract concept of being able to configure the root of trust that the LB uses to re-encrypt traffic -- so that any external service mesh can use this pattern -- is probably something that GCE should support

[kundan2707]

/kind feature

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/lifecycle stale

[ghost]

/remove-lifecycle stale

[fejta-bot]

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/lifecycle stale

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/lifecycle rotten

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/close

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue.

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[enj]

/reopen
/remove-lifecycle rotten

This seems like valuable functionality to have 😄

[k8s-ci-robot]

@enj: Reopened this issue.

In response to this:

/reopen
/remove-lifecycle rotten

This seems like valuable functionality to have 😄

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[plgingembre]

We currently do not verify the cert issued to the backend. TLS to the backend is on our roadmap.

[k8s-triage-robot]

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/lifecycle stale

[k8s-triage-robot]

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

This bot triages issues and PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
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/lifecycle rotten

[k8s-triage-robot]

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

This bot triages issues 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 issue is closed

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/close not-planned

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue, marking it as "Not Planned".

In response to this:

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

This bot triages issues 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 issue is closed

You can:

• Reopen this issue with /reopen
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/close not-planned

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