Also re-trigger existing swift relations after os upgrade.

hooks/glance-common

@@ -126,6 +126,7 @@ do_openstack_upgrade() {
     juju-log "$CHARM: Configuring identity service after upgrade to $rel."
     keystone_changed $r_id
   fi
+
   local ceph_ids="$(relation-ids ceph)"
   [[ -n "$ceph_ids" ]] && apt-get -y install librbd1
   for r_id in $ceph_ids ; do
@@ -133,6 +134,8 @@ do_openstack_upgrade() {
       ceph_changed "$r_id" "$unit"
     done
   done
+
+  [[ -n "$(relation-ids object-store)" ]] && object-store_joined
 }
 
 configure_https() {

revision

@@ -1 +1 @@
-141
+142