Extend hypervisor crd for cortex filtering

[PhilippMatthes]

Background

In this pull request we implemented a cortex filtering pipeline for KVM. This pipeline uses the hypervisor CRD as single source of truth to find out on which hypervisors a vm can be scheduled. To complete this implementation, we need to extend the hypervisor CRD.

Tasks

Support filtering based on hypervisor type and other capabilities:

• The capabilities struct should be extended to support the hypervisor type. Later, we will probably need to extend this struct further.
• Add fields for supported devices (e.g. video device), cpu modes, and features (for migration filtering)

Capacity filtering:

• We need a spec + status not only for the size of the host, but also for the currently used capacity. This will be used by cortex to filter out hosts without the required capacity. This scheduling logic can be made more intelligent in the future, by mapping out individual numa cells and including reserved capacity.

Pinned projects:

• Provide a spec to declare pinned projects on this hypervisor.

(Bonus)

• Add numa cell capacity & allocation information so we can implement numa sensitive initial placement

When finished:

• Ensure backwards compatibility so we can roll this out without any issues

Dependencies

Note

The scope of this PR is to establish a minimum viable scheduling pipeline in cortex, with the least amount of changes possible. Refactorings of the hypervisor crd spec can follow if needed.

KVM node agent PR: cobaltcore-dev/kvm-node-agent#40

[github-actions]

Merging this branch will not change overall coverage

Impacted Packages	Coverage Δ	🤖
github.com/cobaltcore-dev/openstack-hypervisor-operator/api/v1	0.00% (ø)
github.com/cobaltcore-dev/openstack-hypervisor-operator/applyconfigurations	0.00% (ø)
github.com/cobaltcore-dev/openstack-hypervisor-operator/applyconfigurations/api/v1	0.00% (ø)

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Coverage by file

Changed files (no unit tests)

Changed File	Coverage Δ	Total	Covered	Missed	🤖
github.com/cobaltcore-dev/openstack-hypervisor-operator/api/v1/hypervisor_types.go	0.00% (ø)	0	0	0
github.com/cobaltcore-dev/openstack-hypervisor-operator/api/v1/zz_generated.deepcopy.go	0.00% (ø)	0	0	0
github.com/cobaltcore-dev/openstack-hypervisor-operator/applyconfigurations/api/v1/capabilities.go	0.00% (ø)	0	0	0
github.com/cobaltcore-dev/openstack-hypervisor-operator/applyconfigurations/api/v1/capabilitiesstatus.go	0.00% (ø)	0	0	0
github.com/cobaltcore-dev/openstack-hypervisor-operator/applyconfigurations/api/v1/cell.go	0.00% (ø)	0	0	0
github.com/cobaltcore-dev/openstack-hypervisor-operator/applyconfigurations/api/v1/domaincapabilities.go	0.00% (ø)	0	0	0
github.com/cobaltcore-dev/openstack-hypervisor-operator/applyconfigurations/api/v1/domaininfo.go	0.00% (ø)	0	0	0
github.com/cobaltcore-dev/openstack-hypervisor-operator/applyconfigurations/api/v1/hypervisorspec.go	0.00% (ø)	0	0	0
github.com/cobaltcore-dev/openstack-hypervisor-operator/applyconfigurations/api/v1/hypervisorstatus.go	0.00% (ø)	0	0	0
github.com/cobaltcore-dev/openstack-hypervisor-operator/applyconfigurations/utils.go	0.00% (ø)	0	0	0

Please note that the "Total", "Covered", and "Missed" counts above refer to code statements instead of lines of code. The value in brackets refers to the test coverage of that file in the old version of the code.