this is about a simple flask-restplus microservice with an echo endpoint, that can be found here that runs locally by default on port 5000:
cd $src_folder
python app.py
but when running in a docker container with a simple Dockerfile...
RUN pip install --no-cache-dir -r requirements.txt
CMD [ "python", "./app.py" ]
...with the correct port mapping/exposing, it is not reachable for some reason:
docker run -d -h $HOST --name $CONTAINER \
--publish $SERVER_PORT:$CONTAINER_PORT $DOCKER_HUB_IMG:$IMAGE_VERSION
...even if the container logs are telling that it has started correctly:
(venv) .../flaskexample$ docker logs flaskexample
2017-09-17 18:23:12,505 - werkzeug - INFO - * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
2017-09-17 18:23:12,506 - werkzeug - INFO - * Restarting with stat
2017-09-17 18:23:13,016 - werkzeug - WARNING - * Debugger is active!
2017-09-17 18:23:13,021 - werkzeug - INFO - * Debugger PIN: 246-320-471
(venv) .../flaskexample$
...and also looking ok in docker ps:
(venv) .../flaskexample$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9d90da7ae192 kakicode/flaskexample:latest "python ./app.py" 4 minutes ago Up 4 minutes 0.0.0.0:5000->5000/tcp flaskexample
..but for some reason I keep getting:
...and I am running out of ideas...have to say that I am not providing the SERVER_NAME in flask-restplus configuration, as it does not make any difference, still getting the same issue, and also that every other container requiring port mapping/exposing works fine in my docker daemon. I am running these experiment in Ubuntu 14.04.5.
...has anyone experienced anything similar with flask-restplus out there?
thanking you all in advance