added feature flag

app/config.py

@@ -89,6 +89,9 @@ class Config(object):
     }
 
 
+    FEATURE_SOCKET_ENABLED = getenv("FEATURE_SOCKET_ENABLED", "false") == "true"
+
+
 def _s3_credentials_from_env(bucket_prefix):
     return {
         "bucket": getenv(