Fixed service-instance delete issue

During the loadbalancer delete, If the instance ip
is removed before the service instance, the evalute of
service instance would call the create_service_instance()
which would do the chown/update for the instance_ip which
may not be there which would cause this error.

Added exception handler to handle this.

Change-Id: I7688b8818f4b68c117ebc024d192fa3f2b4454fb
Closes-bug: #1716881

src/config/api-server/vnc_cfg_api_server.py

@@ -1928,8 +1928,9 @@ def obj_chown_http_post(self):
 
         try:
             obj_type = self._db_conn.uuid_to_obj_type(obj_uuid)
-        except NoIdError:
-            raise cfgm_common.exceptions.HttpError(400, 'Invalid object id')
+        except NoIdError as e:
+            # Not present in DB
+            raise cfgm_common.exceptions.HttpError(404, str(e))
 
         # ensure user has RW permissions to object
         perms = self._permissions.obj_perms(get_request(), obj_uuid)
@@ -1961,8 +1962,9 @@ def obj_chmod_http_post(self):
 
         try:
             obj_type = self._db_conn.uuid_to_obj_type(obj_uuid)
-        except NoIdError:
-            raise cfgm_common.exceptions.HttpError(400, 'Invalid object id')
+        except NoIdError as e:
+            # Not present in DB
+            raise cfgm_common.exceptions.HttpError(404, str(e))
 
         # ensure user has RW permissions to object
         perms = self._permissions.obj_perms(get_request(), obj_uuid)

src/config/svc-monitor/svc_monitor/instance_manager.py

@@ -143,7 +143,10 @@ def _link_and_update_iip_for_family(self, si, vmi_obj, iip_obj):
                 iip_obj.set_instance_ip_mode(u'active-standby')
 
             iip_obj.add_virtual_machine_interface(vmi_obj)
-            self._vnc_lib.instance_ip_update(iip_obj)
+            try:
+                self._vnc_lib.instance_ip_update(iip_obj)
+            except NoIdError:
+                pass
 
     def _link_and_update_iip(self, si, vmi_obj, iip_obj, iipv6_obj):
         if iip_obj:
@@ -603,7 +606,7 @@ def _create_svc_vm_port(self, nic, instance_name, si, st,
             self._vnc_lib.virtual_machine_interface_update(vmi_obj)
 
         # VMI should be owned by tenant
-        self._vnc_lib.chown(vmi_obj.uuid, si.parent_key)
+        self._vnc_lib.chown(vmi_obj.uuid, proj_obj.uuid)
 
         VirtualMachineInterfaceSM.locate(vmi_obj.uuid)
 
@@ -628,10 +631,13 @@ def _create_svc_vm_port(self, nic, instance_name, si, st,
             return
 
         # instance-ip should be owned by tenant
-        if iip_obj:
-            self._vnc_lib.chown(iip_obj.uuid, si.parent_key)
-        if iipv6_obj:
-            self._vnc_lib.chown(iipv6_obj.uuid, si.parent_key)
+        try:
+            if iip_obj:
+                self._vnc_lib.chown(iip_obj.uuid, proj_obj.uuid)
+            if iipv6_obj:
+                self._vnc_lib.chown(iipv6_obj.uuid, proj_obj.uuid)
+        except NoIdError:
+            pass
 
         # set mac address
         if vmi_create: