Forcing get_node_name to continue searching for a node name if the returned list of nodes doesn't include this one.

There was a race condition where the kubelet was restarting and we were querying the api server for this node.

cluster/juju/layers/kubernetes-worker/reactive/kubernetes_worker.py

@@ -979,14 +979,11 @@ def get_node_name():
     while time.time() < deadline:
         try:
             raw = check_output(cmd)
-            break
         except CalledProcessError:
             hookenv.log('Failed to get node name for node %s.'
                         ' Will retry.' % (gethostname()))
             time.sleep(1)
-    else:
-        msg = 'Failed to get node name for node %s' % gethostname()
-        raise GetNodeNameFailed(msg)
+            continue
 
         result = json.loads(raw.decode('utf-8'))
         if 'items' in result:
@@ -1004,6 +1001,8 @@ def get_node_name():
 
                         # if we didn't match, just bail to the next node
                         break
+        time.sleep(1)
+
     msg = 'Failed to get node name for node %s' % gethostname()
     raise GetNodeNameFailed(msg)