Aodh notifier now uses port defined in OS_NOTIFIER_URI

Aodh notifier was using always port 8662, instead of
getting the port defined in config. That has been fixed.

Signed-off-by: Benjamin Diaz <bdiaz@whitestack.com>
diff --git a/osm_mon/plugins/OpenStack/Aodh/notifier.py b/osm_mon/plugins/OpenStack/Aodh/notifier.py
index a1c85e6..b63e581 100644
--- a/osm_mon/plugins/OpenStack/Aodh/notifier.py
+++ b/osm_mon/plugins/OpenStack/Aodh/notifier.py
@@ -25,6 +25,7 @@
 import json
 import logging
 import os
+import re
 import sys
 import time
 
@@ -138,10 +139,11 @@
 
 
 if __name__ == "__main__":
-    from sys import argv
-
-    # Runs the webserver
-    if len(argv) == 2:
-        run(port=int(argv[1]))
+    cfg = Config.instance()
+    p = re.compile(':(\d+)', re.IGNORECASE)
+    m = p.search(cfg.OS_NOTIFIER_URI)
+    if m:
+        port = m.group(1)
+        run(port=int(port))
     else:
         run()