How would one successfully downgrade a Rancher Server if needed?
For example, I have a DB backup. Would the process be as follows:
- Stop server
- Restore DB to backup
- ?? Kill agents ??
- Deploy old rancher-server image
I’ll likely be doing a dry run of this before doing it for real, but I was wondering if anyone has done this that could share their learnings. Namely, what do I have to do around old system containers on hosts? Will the server safely re-attach to all existing docker containers?