commit a6bbe031f17d82e2a4ef7338de65acb762e9527a
author Yuriy Nesenenko <ynesenenko@mirantis.com> Wed Dec 23 16:00:02 2015 +0200
committer Yuriy Nesenenko <ynesenenko@mirantis.com> Wed Dec 23 16:40:44 2015 +0200
tree cd9f5334baa0fcddedef6baae64c7ecd8f95d72a
parent d21747952e32e6495b35f83d0dcea644f3a08a43

Fix restoring a backup volume to a larger volume

We cannot restore a backup to a larger volume on ceph because it
fails with status "error_restoring". This patch adds read/write
permissions to volumes pool for backup user. We need such permissions
to change volume size during restoring backup when the backup is
smaller than a volume.

Change-Id: I794c1126bcee4e07baf5a9dcfee779fd61da5636
Closes-Bug: 1519749

lib/cinder_backends/ceph

diff --git a/lib/cinder_backends/ceph b/lib/cinder_backends/ceph
index c21350b..9bff5be 100644
--- a/lib/cinder_backends/ceph
+++ b/lib/cinder_backends/ceph
@@ -62,7 +62,7 @@
                 sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_BAK_CEPH_POOL} crush_ruleset ${RULE_ID}
             fi
         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}" | sudo tee ${CEPH_CONF_DIR}/ceph.client.${CINDER_BAK_CEPH_USER}.keyring
+        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"