[GCS]Deleting a controller role and adding againg leads to backup fail

[okosse]

Step for reproducing:
  1. Install GCS plugin
  2. Create an environment
  3. Add following nodes:
  * 1 controller
  * 2 controller+ceph-osd
  * 1 compute+ceph-osd
  * 1 compute
  4. Configure GCS plugin
  5. Deploy the cluster
  6. Run OSTF
  7. Verify GCS plugin
  8. Delete node with controller role
  9. Deploy changes
  10. Run OSTF
  11. Verify GCS plugin
  12. Add a node with controller role
  13. Deploy changes
  14. Run OSTF
  15. Verify GCS plugin

Expected result: all steps are success
Actual result: 15 step is failed

[okosse (okosse)]

I verified it