Weigh hosts by hypervisor version

Registered by sean mooney

As an operator, i would like the nova-scheduler to prefer newer compute hosts based on the hypervisor version installed.
This will enable me to simplify rolling upgrades and retirement of old hardware by preferring the upgraded hosts.
As with all weighers I wish to control the impact of the weigher via a multiplier to increase its weight or invert the behaviour.

Blueprint information

Status:
Complete
Approver:
Sylvain Bauza
Priority:
Undefined
Drafter:
sean mooney
Direction:
Approved
Assignee:
sean mooney
Definition:
Approved
Series goal:
Accepted for bobcat
Implementation:
Implemented
Milestone target:
None
Started by
sean mooney
Completed by
sean mooney

Related branches

Sprints

Whiteboard

[20230411 bauzas] Approved as a specless blueprint during today's nova meeting.

Gerrit topic: https://review.opendev.org/#/q/topic:spec/weigh-host-by-hypervisor-version

Addressed by: https://review.opendev.org/c/openstack/nova/+/880231
    [WIP] add hypervisor version weigher

(?)

Work Items

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