add share server update to manila-manage share update_host

Change-Id: Ifb19d926a84fae986b8d296959cfce71bf0c2e9e
Closes-Bug: #1881098

manila/cmd/manage.py

@@ -364,7 +364,7 @@ class ShareCommands(object):
     @args('--force', required=False, type=bool, default=False,
           help="Ignore validations.")
     def update_host(self, current_host, new_host, force=False):
-        """Modify the host name associated with a share.
+        """Modify the host name associated with a share and share server.
 
            Particularly to recover from cases where one has moved
            their Manila Share node, or modified their 'host' opt
@@ -378,6 +378,11 @@ class ShareCommands(object):
               "to %(nhost)s." % {'count': updated, 'chost': current_host,
                                  'nhost': new_host})
 
+        servers = db.share_servers_host_update(ctxt, current_host, new_host)
+        print("Updated host of %(count)s share servers on %(chost)s "
+              "to %(nhost)s." % {'count': servers, 'chost': current_host,
+                                 'nhost': new_host})
+
 
 CATEGORIES = {
     'config': ConfigCommands,

manila/db/api.py

@@ -991,6 +991,11 @@ def share_server_backend_details_set(context, share_server_id, server_details):
                                                  server_details)
 
 
+def share_servers_host_update(context, current_host, new_host):
+    """Update the host attr of all share servers that are on current_host."""
+    return IMPL.share_servers_host_update(context, current_host, new_host)
+
+
 ##################
 
 

manila/db/sqlalchemy/api.py

@@ -3867,6 +3867,20 @@ def share_server_backend_details_delete(context, share_server_id,
         item.soft_delete(session)
 
 
+@require_admin_context
+def share_servers_host_update(context, current_host, new_host):
+    session = get_session()
+    host_field = models.ShareServer.host
+    with session.begin():
+        query = model_query(
+            context, models.ShareServer, session=session, read_deleted="no",
+        ).filter(host_field.like('{}%'.format(current_host)))
+        result = query.update(
+            {host_field: func.replace(host_field, current_host, new_host)},
+            synchronize_session=False)
+    return result
+
+
 ###################
 
 def _driver_private_data_query(session, context, entity_id, key=None,

manila/tests/cmd/test_manage.py

@@ -392,13 +392,19 @@ class ManilaCmdManageTestCase(test.TestCase):
                          mock.Mock(return_value='admin_ctxt'))
         self.mock_object(db, 'share_instances_host_update',
                          mock.Mock(return_value=20))
+        self.mock_object(db, 'share_servers_host_update',
+                         mock.Mock(return_value=5))
 
         with mock.patch('sys.stdout', new=six.StringIO()) as intercepted_op:
             self.share_cmds.update_host(current_host, new_host, force)
 
-        expected_op = ("Updated host of 20 share instances on "
+        expected_op_si = ("Updated host of 20 share instances on "
-                       "%(chost)s to %(nhost)s." %
+                          "%(chost)s to %(nhost)s." %
-                       {'chost': current_host, 'nhost': new_host})
+                          {'chost': current_host, 'nhost': new_host})
-        self.assertEqual(expected_op, intercepted_op.getvalue().strip())
+        expected_op_sv = ("Updated host of 5 share servers on "
+                          "%(chost)s to %(nhost)s." %
+                          {'chost': current_host, 'nhost': new_host})
+        self.assertEqual(expected_op_si + "\n" + expected_op_sv,
+                         intercepted_op.getvalue().strip())
         db.share_instances_host_update.assert_called_once_with(
             'admin_ctxt', current_host, new_host)

releasenotes/notes/bug-1881098-add-share-server-update-to-manila-manage-share-update-host-bbbc4fe2da48cae9.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    The ``manila-manage share update_host`` command now updates the host
+    attribute of share servers in addition to shares.