[charms] placement charm
corey.bryant at canonical.com
Fri Oct 4 13:41:12 UTC 2019
I'd like to see if I can get some input on the current state of the
Placement API split.
For some background, the nova placement API was removed from nova in train,
and it's been split into its own project. It's mostly just a basic API
charm. The tricky part is the migration of tables from the nova_api
database to the placement database.
Code is located at:
Test scenarios I've been testing with:
1) deploy nova-cc et al train, configure keystonev3, deploy instance
2) deploy nova-cc et al stein, configure keystonev3, deploy instance 1,
deploy placement train, deploy instance 2, upgrade nova-cc to train, deploy
There is currently an issue with the second test scenario where instance 2
creation errors because nova-scheduler can't find a valid placement
candidate (not sure of the exact error atm). However if I delete instance 1
before creating instance 2 it is created successfully. It feels like a DB
related issue but I'm really not sure so I'll keep digging.
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