Merge branch 'issue-264' into 'master'

Issue 264

fixes #264

circle/vm/models/instance.py

@@ -32,6 +32,7 @@ from django.core.exceptions import PermissionDenied
 from django.db.models import (BooleanField, CharField, DateTimeField,
                               IntegerField, ForeignKey, Manager,
                               ManyToManyField, permalink, SET_NULL, TextField)
+from django.db import IntegrityError
 from django.dispatch import Signal
 from django.utils import timezone
 from django.utils.translation import ugettext_lazy as _, ugettext_noop
@@ -926,8 +927,16 @@ class Instance(AclBase, VirtualMachineDescModel, StatusModel, OperatedMixin,
 
     def allocate_vnc_port(self):
         if self.vnc_port is None:
+            while True:
+                try:
                     self.vnc_port = find_unused_vnc_port()
                     self.save()
+                except IntegrityError:
+                    # Another thread took this port get another one
+                    logger.debug("Port %s is in use.", self.vnc_port)
+                    pass
+                else:
+                    break
 
     def yield_vnc_port(self):
         if self.vnc_port is not None:

circle/vm/operations.py

@@ -261,6 +261,10 @@ class DeployOperation(InstanceOperation):
 
     def on_commit(self, activity):
         activity.resultant_state = 'RUNNING'
+        activity.result = create_readable(
+            ugettext_noop("virtual machine successfully "
+                          "deployed to node: %(node)s"),
+            node=self.instance.node)
 
     def _operation(self, activity, timeout=15):
         # Allocate VNC port and host node
@@ -275,9 +279,11 @@ class DeployOperation(InstanceOperation):
 
         # Deploy VM on remote machine
         if self.instance.state not in ['PAUSED']:
+            rn = create_readable(ugettext_noop("deploy virtual machine"),
+                                 ugettext_noop("deploy vm to %(node)s"),
+                                 node=self.instance.node)
             with activity.sub_activity(
-                'deploying_vm', readable_name=ugettext_noop(
-                    "deploy virtual machine")) as deploy_act:
+                    'deploying_vm', readable_name=rn) as deploy_act:
                 deploy_act.result = self.instance.deploy_vm(timeout=timeout)
 
         # Establish network connection (vmdriver)