Use oslo-versioned-objects to help with dealing with upgrades.

Registered by lvmxh

We are looking to improve the way we deal with versioning (of all sorts db/rpc/rest/templates/plugins).
Versioned-objects can help us deal with DB schema being at a different version than the code expects. This will allow ironic to be operated safely during upgrades.

Ironic also has come up with the idea of versioned objects, and it is base on his own versioned objects Implementation. But there is already an commom versioned objects lib. https://github.com/openstack/oslo.versionedobjects

We can migrate it to oslo.versionedobjects

Blueprint information

Status:
Not started
Approver:
None
Priority:
Undefined
Drafter:
lvmxh
Direction:
Needs approval
Assignee:
Tan Lin
Definition:
New
Series goal:
None
Implementation:
Unknown
Milestone target:
None

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