Feature 10910: Migration of Openstack based VM instances

Added feature support for Migration of Openstack based VM instances
from OSM

Change-Id: I1e16c3ba323d284c30e4761aec614b18119691af
Signed-off-by: elumalai <deepika.e@tataelxsi.co.in>
diff --git a/RO-plugin/osm_ro_plugin/vimconn.py b/RO-plugin/osm_ro_plugin/vimconn.py
index 8b207b1..b2ba979 100644
--- a/RO-plugin/osm_ro_plugin/vimconn.py
+++ b/RO-plugin/osm_ro_plugin/vimconn.py
@@ -1078,6 +1078,15 @@
         """
         raise VimConnNotImplemented("SFC support not implemented")
 
+    def migrate_instance(self, vm_id, compute_host=None):
+        """Migrate a vdu
+        Params:
+            vm_id: ID of an instance
+            compute_host: Host to migrate the vdu to
+        Returns the vm state or raises an exception upon error
+        """
+        raise VimConnNotImplemented("Should have implemented this")
+
     # NOT USED METHODS in current version. Deprecated
     @deprecated
     def host_vim2gui(self, host, server_dict):