Test velero in CI
https://open.greenhost.net/openappstack/openappstack/-/issues/991#note_30453:
Installing velero in CI would be nice indeed. It's not entirely trivial, depending on how far we want to take it, because to configure it properly you need to give it S3 credentials. Creating a ceph account with us is a manual step right now, so we can't do that from the CI. Maybe we can make it so all CI machines share a single set of credentials and a single bucket, which each CI machine having its own suffix inside the bucket. If I recall correctly velero has a configurable suffix that it puts all its backups under.