[csi-cinder-plugin] Support volume encryption with user provided keys

[NotTheEvilOne]

/kind feature

What happened: Currently volumes can be encrypted if the required features are set up in OpenStack. The remaining handling is done transparently in OpenStack (nova and barbican). A feature missing is the "bring your own keys" approach were the key is stored in a k8s secret and predefined when the API request to create a volume is send.

What you expected to happen: A user provided secret can be used to control the encryption from the k8s layer. Remaining mechanisms in OpenStack should remain the same including storage in Barbican and transparent handling in Nova.

Anything else we need to know?: The OpenStack feature request is https://bugs.launchpad.net/nova/+bug/2051108

[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.

This bot triages un-triaged 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
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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
• Mark this issue as fresh with /remove-lifecycle rotten
• Offer to help out with Issue Triage

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

/close not-planned

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