2.2 KiB
Migrate to oslo-messaging
Problem description
Neutron currently uses an older version of Oslo's RPC code which is being deprecated in favor of oslo.messaging.
Proposed change
Neutron will be updated to utilize oslo.messaging and the copied code from oslo-incubator will be removed from the tree.
Alternatives
None. oslo.messaging is the only supported RPC framework from the Oslo team.
Data model impact
None
REST API impact
None
Security impact
None
Notifications impact
The content of the notifications should not change; however, configuration options will slightly change.
Other end user impact
The underlying library uses the compatible wire format, so users upgrading should not be impacted.
Performance Impact
This is a code refactor for a new library api, so performance changes will be minimal.
Other deployer impact
Configuration options will change slightly to utilize the standard set from oslo.messaging. The options are standard across other OpenStack projects, so deployers will benefit from the standardization.
Developer impact
None. Shims will be used to provide compatibility with internal code interfaces.
Implementation
Assignee(s)
ihrachys
Work Items
- Introduce shims modules for existing RPC classes with Neutron
- Introduce exception compatibility layer
- Convert shims to use oslo.messaging constructs
- Future work could include removal of shims, but this can be done later.
Dependencies
None
Testing
Exisiting Unit, Functional, and Tempest tests will ensure the refactor does not introduce any regressions. Grenade testing should validate that the message payload are compatible.
Documentation Impact
Messaging configuration will need to be updated to reflect the set of options provided by oslo.messaging.
References
N/A