Add python-zaqarclient to python runtime

Add an example using zaqar.

Change-Id: I130a87d2b1315dca8b8712db5baea31c8eebbd9e

example/functions/python/openstack/send_zaqar_message.py

@@ -0,0 +1,45 @@
+import os
+
+import requests
+from zaqarclient.queues import client
+
+
+def _send_message(z_client, queue_name, status, message=''):
+    queue_name = queue_name or 'test_queue'
+    queue = z_client.queue(queue_name)
+    queue.post({"body": {'status': status, 'message': message}})
+    print 'message posted.'
+
+
+def check_and_trigger(context, **kwargs):
+    file_name = 'count.txt'
+    r = requests.get('http://httpbin.org/status/500')
+
+    if r.status_code != requests.codes.ok:
+        if not os.path.isfile(file_name):
+            count = 1
+            with open(file_name, 'w') as f:
+                f.write(str(count))
+        else:
+            with open(file_name, 'r+') as f:
+                count = int(f.readline())
+                count += 1
+                if count >= 3:
+                    z_client = client.Client(
+                        session=context['os_session'],
+                        version=2,
+                    )
+                    _send_message(z_client, kwargs.get('queue'), r.status_code,
+                                  'Service Not Available!')
+                    count = 0
+
+                f.seek(0)
+                f.write(str(count))
+                f.truncate()
+
+        print('new count: %s' % count)
+    else:
+        try:
+            os.remove(file_name)
+        except OSError:
+            pass

runtimes/python2/requirements.txt

@@ -3,4 +3,7 @@ python-openstackclient>=3.3.0,!=3.10.0  # Apache-2.0
 python-neutronclient>=6.3.0  # Apache-2.0
 python-swiftclient>=3.2.0  # Apache-2.0
 python-ceilometerclient>=2.5.0  # Apache-2.0
+python-zaqarclient>=1.0.0  # Apache-2.0
+python-octaviaclient>=1.0.0  # Apache-2.0
+python-mistralclient>=3.1.0  # Apache-2.0
 keystoneauth1>=2.21.0  # Apache-2.0

tools/clear_resources.sh

@@ -34,4 +34,4 @@ function delete_resources(){
     fi
 }
 
-delete_resources
+delete_resources $1