Aurelien Lourot be45f77945 Publish releases packages map to principal charm ...

For principal - subordinate plugin type relations where the
principal Python payload imports code from packages managed by a
subordinate, upgrades can be problematic.

This change will allow a subordinate charm that have opted into the
feature to inform its principal about all implemented release -
packages combinations ahead of time. With this information in place
the principal can do the upgrade in one operation without risk of
charm relation RPC type processing at a critical moment.

This is similar to
https://review.opendev.org/c/openstack/charm-interface-keystone-domain-backend/+/781658
https://review.opendev.org/c/openstack/charm-layer-openstack/+/781624

Change-Id: Ibd5bdcb141fc3103ee97123ff284fb2957802eba
Closes-Bug: #1927277

2021-10-04 14:36:24 +02:00

9.8 KiB

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