Add password to redis connection

Author: mmumshad

vote/app.py

@@ -7,13 +7,14 @@
 
 option_a = os.getenv('OPTION_A', "Cats")
 option_b = os.getenv('OPTION_B', "Dogs")
+redis_password = os.getenv('REDIS_PASSWORD', "Dogs")
 hostname = socket.gethostname()
 
 app = Flask(__name__)
 
 def get_redis():
     if not hasattr(g, 'redis'):
-        g.redis = Redis(host="redis", db=0, socket_timeout=5)
+        g.redis = Redis(host="redis", db=0, password=redis_password, socket_timeout=5)
     return g.redis
 
 @app.route("/", methods=['POST','GET'])