Request traits in Nova
This blueprint aims at leveraging traits to standardize the way
of requesting qualitative resources in Nova.
The main improvements are:
1. Allow to specify traits in flavors and image metadata.
2. Allow nova to validate traits when create a flavor.
3. Fail fast in nova-api when a requested traits doesn't exist or isn't valid in the cloud.
4. Standardize and encapsulate the implementation about how to request traits to scheduler through request spec.
Blueprint information
- Status:
- Complete
- Approver:
- Jay Pipes
- Priority:
- Low
- Drafter:
- Lei Zhang
- Direction:
- Approved
- Assignee:
- Lei Zhang
- Definition:
- Approved
- Series goal:
- Accepted for queens
- Implementation:
-
Implemented
- Milestone target:
-
queens-rc1
- Started by
- Matt Riedemann
- Completed by
- Matt Riedemann
Related branches
Related bugs
Sprints
Whiteboard
Addressed by: https:/
Request traits in Nova
Gerrit topic: https:/
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placement: extract traits from flavor extra spec
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placement: the common method to filter resource providers by traits
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placement: add traits support to get resource_providers with shared
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placement: add traits support in the AllocationCandi
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placement: add traits to the 'GET /allocation_
Gerrit topic: https:/
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[DNM] Add _get_provider_
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[DNM] placement: add traits support in the AllocationCandi
Gerrit topic: https:/
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placement: support traits in allocation candidates API
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placement: using the dict format for the allocations
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placement: enable required traits from the flavor extra specs
Gerrit topic: https:/
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Add functional tests for traits-based scheduling
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Fix nits in support traits changes
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Mention required traits in the flavors user docs
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doc: placement upgrade notes for queens
Work Items
Dependency tree
* Blueprints in grey have been implemented.
