db9ddd39d3
During a rolling upgrade, ironic conductor and api services are running with different versions. When an object is received in an incompatible version, IncompatibleObjectVersion is raised. Implementation of the indirection API allows the object to be backported to a supported version by the conductor (conductor has to be the first service to be upgraded). This change enables backporting of objects from Mitaka. This lays the foundation to be able to do rolling upgrades from Liberty (or from this patch onwards) to Mitaka. There may still be other issues that will need fixing in Mitaka before we will be able to do a full rolling upgrade. Enabling the indirection_api causes all object methods decorated with the remotable or remotable_classmethod to do RPC from ironic-api to ironic-conductor service. To keep the current behavior, I'm removing all remotable decorators on object methods and thus not enabling object RPC calls in this patch. These calls caused random timeouts on the CI gates (probably due to a race in which Nova calls the ironic-api service before ironic-conductor is up). RPC calls made via the indirection_api should be enabled one-by-one, when the implications are fully understood. Change-Id: Ia381348da93f95d764c83f3ec2a2ed5a1db5ad6d Closes-Bug: 1493816 Depends-On: I81400305f166d62aa4612aab54602abb8178b64c |
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| .. | ||
| __init__.py | ||
| base.py | ||
| chassis.py | ||
| conductor.py | ||
| fields.py | ||
| node.py | ||
| port.py | ||