Temporarily pin to Ceph Reef

There's a bug in Ceph Squid that prevents
access rules from working as expected with
the Ceph Native driver

Change-Id: I11a3c8f573e5540840a23459d698197a9c3a8f4c
Related-Bug: #2105833
Signed-off-by: Goutham Pacha Ravi <gouthampravi@gmail.com>
diff --git a/zuul.d/manila-tempest-jobs.yaml b/zuul.d/manila-tempest-jobs.yaml
index 4fe7f1a..2fa16bd 100644
--- a/zuul.d/manila-tempest-jobs.yaml
+++ b/zuul.d/manila-tempest-jobs.yaml
@@ -389,6 +389,10 @@
         devstack-plugin-ceph: https://opendev.org/openstack/devstack-plugin-ceph
       tempest_test_regex: manila_tempest_tests.tests
       devstack_localrc:
+        # TODO (gouthamr): update to squid after
+        # https://bugs.launchpad.net/manila/+bug/2105833
+        CEPH_RELEASE: 'reef'
+        CONTAINER_IMAGE: 'quay.io/ceph/ceph:v18.2'
         VOLUME_BACKING_FILE_SIZE: 60GB
         SHARE_DRIVER: manila.share.drivers.cephfs.driver.CephFSDriver
         MANILA_ENABLED_BACKENDS: cephfsnative