Definition of Done:

On jenkins CI, add a rollback job for 127_IPI_on_baremetal-rdu profile.

Scenarios to be covered:

1. Customer is running release 4.12.0
2. Customer initiates update to 4.12.nightly/4.12.z
3. Cluster upgrades to 4.12.nightly/4.12.z successfully
4. Some user applications go wrong
5. Customer rolls back to 4.12.0
6. Cluster rolls back to 4.12.0 successfully
7. Cluster is healthy