design-proposal: instancetype.kubevirt.io - Support declarative VirtualMachine management

[lyarwood]

What this PR does / why we need it:

At present a VirtualMachine using instance types and/or preferences will have runtime derived data such as the name of a ControllerRevision capturing the state of each resource mutated into the core spec during submission.

This breaks declarative management of VirtualMachines as an owner has no way of pre-populating these runtime derived values and will always see changes made to the spec of their VirtualMachine after submission.

This design proposal aims to enable declarative management of VirtualMachines using instance types and/or preferences by using status to track runtime derived data while retaining all existing behavior and lifecycle support of a VirtualMachine using an instance type and/or preference.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged): Fixes #

Special notes for your reviewer:

Checklist

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• [ ] Design: A design document was considered and is present (link) or not required
• [ ] PR: The PR description is expressive enough and will help future contributors
• [ ] Code: Write code that humans can understand and Keep it simple
• [ ] Refactor: You have left the code cleaner than you found it (Boy Scout Rule)
• [ ] Upgrade: Impact of this change on upgrade flows was considered and addressed if required
• [ ] Testing: New code requires new unit tests. New features and bug fixes require at least on e2e test
• [ ] Documentation: A user-guide update was considered and is present (link) or not required. You want a user-guide update if it's a user facing feature / API change.
• [ ] Community: Announcement to kubevirt-dev was considered

Release note:

NONE

[kubevirt-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[xpivarc]

/sig compute

[aburdenthehand]

@lyarwood is this just waiting on re-reviews after changes?

[lyarwood]

/close

[kubevirt-bot]

@lyarwood: Closed this PR.

In response to this:

/close

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