Make our fedmsg ansible callback resilient to failure.

callback_plugins/fedmsg_callback.py

@@ -46,13 +46,19 @@ class CallbackModule(object):
         # It seems like recursive playbooks call this over and over again and
         # fedmsg doesn't like to be initialized more than once.  So, here, just
         # catch that and ignore it.
+        failed = False
         try:
             fedmsg.init(**config)
         except ValueError:
+            import traceback
+            traceback.print_exc()
+            self.failed = True
             pass
 
 
     def playbook_on_play_start(self, pattern):
+        if self.failed:
+            return
         # This gets called once for each play.. but we just issue a message once
         # for the first one.  One per "playbook"
         play = getattr(self, 'play', None)
@@ -79,6 +85,8 @@ class CallbackModule(object):
                 self.playbook_path = path
 
     def playbook_on_stats(self, stats):
+        if self.failed:
+            return
         if not self.playbook_path:
             return