docs/doc/source/storage/kubernetes/uninstall-rook-ceph-cbb046746782.rst

Uninstall Rook Ceph

To completely remove Rook Ceph you must remove the app and clear all the environment configurations to prevent an automatic reinstall.

1. Remove the application by running the script:

   source /etc/platform/openrc
   system application-remove rook-ceph --force
   retry_count=1
   retries=200
   while [ $retry_count -le $retries ]; do
       rookstatus=$(system application-list | grep rook-ceph | awk '{print $10}')
       echo $rookstatus
       if [[ "$rookstatus" == "uploaded" ]]; then
           system application-delete rook-ceph
           break
       fi
       echo "Retry #" $retry_count
       let retry_count++
   done

2. Remove the environment configurations completely.

   1. Remove .

      1. Lock the host.

         ~(keystone_admin)$ system host-lock <hostname>

      2. List all to get the uuid of each .

         ~(keystone_admin)$ system host-stor-list <hostname>

      3. Remove each using the uuid of all .

         ~(keystone_admin)$ system host-stor-delete <uuid>

      4. Unlock the host.

         ~(keystone_admin)$ system host-unlock <hostname>

   2. ( Only) Remove controllerfs.

      1. To remove a controllerfs, the standby controller must be locked and the controllerfs needs to be in Ready state.

         ~(keystone_admin)$ system host-lock <hostname>

      2. Remove the controllerfs.

         ~(keystone_admin)$ system controllerfs-delete ceph-float

      3. Unlock the standby controller.

         ~(keystone_admin)$ system host-unlock <hostname>

   3. Remove the host-fs.

      ~(keystone_admin)$ system host-fs-delete <hostname> ceph

   4. Remove the storage backend ceph-rook.

      ~(keystone_admin)$ system storage-backend-delete ceph-rook-store --force