Add a modify function to the floating ip dns api.

Removed the dns driver function rename_entry().  Since 'name'
is the unique identifier for an entry, trying to rename things
causes various confusions.  Better to leave the user to
delete and recreate.

For blueprint public-and-private-dns.

Change-Id: I766af01299b7b28ad8d9f6c072a8f3e049bd286b

1 files changed, 22 insertions, 0 deletions

diff --git a/nova/api/openstack/v2/contrib/floating_ip_dns.py b/nova/api/openstack/v2/contrib/floating_ip_dns.py
index 17efd6d84..1f1cf824c 100644
--- a/nova/api/openstack/v2/contrib/floating_ip_dns.py
+++ b/nova/api/openstack/v2/contrib/floating_ip_dns.py
@@ -168,6 +168,28 @@ class FloatingIPDNSController(object):
                                           'type': dns_type,
                                           'zone': zone})
 
+    def update(self, req, id, body):
+        """Modify a dns entry."""
+        context = req.environ['nova.context']
+        zone = _unquote_zone(id)
+
+        try:
+            entry = body['dns_entry']
+            name = entry['name']
+            new_ip = entry['ip']
+        except (TypeError, KeyError):
+            raise webob.exc.HTTPUnprocessableEntity()
+
+        try:
+            self.network_api.modify_dns_entry(context, name,
+                                              new_ip, zone)
+        except exception.NotFound:
+            return webob.Response(status_int=404)
+
+        return _translate_dns_entry_view({'ip': new_ip,
+                                          'name': name,
+                                          'zone': zone})
+
     def delete(self, req, id):
         """Delete the entry identified by req and id. """
         context = req.environ['nova.context']