update docker hostnames to avoid conflicts when sharing network

populater/src/app.py

@@ -16,7 +16,7 @@ CLIENT_SECRET = os.environ.get('CLIENT_SECRET', None)
 if CLIENT_SECRET is None:
     raise ValueError("CLIENT_SECRET cannot be None, set using environment variable")
 
-db = Db('redis', 6379, 0, CLIENT_ID, CLIENT_SECRET)
+db = Db('heartbets-redis', 6379, 0, CLIENT_ID, CLIENT_SECRET)
 
 
 def get_args():