Docker compose update (and rollback)

Of course your critical systems should have either backups/snapshots (for example lxc snapshot), or a full deploy pipeline that allows you to revert to older versions in case of problems.&#xA;But sometimes you just don't, because you're running some non-critical thingy temporarily just as a simple docker-compose.yml.&#xA;Even in that case there should be some way to rollback/revert to the original…