Do not create cinder backup pool and key when cephadm is used

When cephadm is used, if ENABLE_CEPH_C_BAK is True both pool and
key are created by devstack-plugin-ceph. This piece of code can
still stay here to make sure the cinder config is properly built.

Change-Id: I799521f008123b8e42b2021c1c11d374b834bec3

lib/cinder_backups/ceph

@@ -26,12 +26,15 @@ CINDER_BAK_CEPH_USER=${CINDER_BAK_CEPH_USER:-cinder-bak}
 
 
 function configure_cinder_backup_ceph {
-    sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${CINDER_BAK_CEPH_POOL} ${CINDER_BAK_CEPH_POOL_PG} ${CINDER_BAK_CEPH_POOL_PGP}
-    if [[ "$REMOTE_CEPH" = "False" && "$CEPH_REPLICAS" -ne 1 ]]; then
-        sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_BAK_CEPH_POOL} crush_ruleset ${RULE_ID}
+    # Execute this part only when cephadm is not used
+    if [[ "$CEPHADM_DEPLOY" = "False" ]]; then
+        sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${CINDER_BAK_CEPH_POOL} ${CINDER_BAK_CEPH_POOL_PG} ${CINDER_BAK_CEPH_POOL_PGP}
+        if [[ "$REMOTE_CEPH" = "False" && "$CEPH_REPLICAS" -ne 1 ]]; then
+            sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_BAK_CEPH_POOL} crush_ruleset ${RULE_ID}
+        fi
+        sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create client.${CINDER_BAK_CEPH_USER} mon "allow r" osd "allow class-read object_prefix rbd_children, allow rwx pool=${CINDER_BAK_CEPH_POOL}, allow rwx pool=${CINDER_CEPH_POOL}" | sudo tee ${CEPH_CONF_DIR}/ceph.client.${CINDER_BAK_CEPH_USER}.keyring
+        sudo chown $(whoami):$(whoami) ${CEPH_CONF_DIR}/ceph.client.${CINDER_BAK_CEPH_USER}.keyring
     fi
-    sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create client.${CINDER_BAK_CEPH_USER} mon "allow r" osd "allow class-read object_prefix rbd_children, allow rwx pool=${CINDER_BAK_CEPH_POOL}, allow rwx pool=${CINDER_CEPH_POOL}" | sudo tee ${CEPH_CONF_DIR}/ceph.client.${CINDER_BAK_CEPH_USER}.keyring
-    sudo chown $(whoami):$(whoami) ${CEPH_CONF_DIR}/ceph.client.${CINDER_BAK_CEPH_USER}.keyring
 
     iniset $CINDER_CONF DEFAULT backup_driver "cinder.backup.drivers.ceph.CephBackupDriver"
     iniset $CINDER_CONF DEFAULT backup_ceph_conf "$CEPH_CONF_FILE"