fix port

obfsproxy/Dockerfile

@@ -18,8 +18,6 @@ ENV RUN_MODE server
 ENV LISTEN_ADDR 0.0.0.0
 ENV LISTEN_PORT 4911
 
-EXPOSE $LISTEN_PORT
-
 CMD obfsproxy --log-min-severity=$LOG_MIN_SEVERITY --data-dir=$DATA_DIR \
               scramblesuit --password=$PASSWORD --dest=$DEST_ADDR:$DEST_PORT \
               $RUN_MODE $LISTEN_ADDR:$LISTEN_PORT

obfsproxy/README.md

@@ -85,3 +85,5 @@ You can generate one via this command:
 ```
 python -c 'import base64, os; print base64.b32encode(os.urandom(20))'
 ```
+
+Note: There's no ports exposed in Dockerfile. You need to expose port explicitly.