Plan/Upgrade without cloud database backup¶
By default, COU plans for and runs a backup step of the cloud database before proceeding to actual upgrade steps. This can be turned off with –no-backup flag.
Usage examples¶
Plan:
user@host:~$ cou plan --no-backupFull execution log: '/home/ubuntu/.local/share/cou/log/cou-20231215211717.log'Connected to 'test-model' ✔Analyzing cloud... ✔Generating upgrade plan... ✔Upgrade cloud from 'ussuri' to 'victoria' Verify that all OpenStack applications are in idle state # note that there's no backup step planned Archive old database data on nova-cloud-controller Control Plane principal(s) upgrade plan Upgrade plan for 'rabbitmq-server' to 'victoria' Upgrade software packages of 'rabbitmq-server' from the current APT repositories Upgrade software packages on unit 'rabbitmq-server/0' Upgrade software packages on unit 'rabbitmq-server/1' Upgrade software packages on unit 'rabbitmq-server/2' ...Upgrade:
user@host:~$ cou upgrade --no-backupFull execution log: '/home/ubuntu/.local/share/cou/log/cou-20231215211717.log'Connected to 'test-model' ✔Analyzing cloud... ✔Generating upgrade plan... ✔...Running cloud upgrade...Verify that all OpenStack applications are in idle state ✔# note that there's no backup step being executed Upgrade plan for 'rabbitmq-server' to 'victoria' Upgrade software packages of 'rabbitmq-server' from the current APT repositories Upgrade software packages on unit 'rabbitmq-server/0' Upgrade software packages on unit 'rabbitmq-server/1' Upgrade software packages on unit 'rabbitmq-server/2' Upgrade 'rabbitmq-server' to the new channel: '3.9/stable' Change charm config of 'rabbitmq-server' 'source' to 'cloud:focal-victoria' Wait for up to 2400s for model 'test-model' to reach the idle state Verify that the workload of 'rabbitmq-server' has been upgraded Continue (y/n): yUpgrade plan for 'rabbitmq-server' to 'victoria' ✔ ... # apply stepsUpgrade completed.