title: Docker: supervisord doesn't start uwsgi
body: <p><strong>Dockerfile</strong></p>
  
  <pre><code>FROM ubuntu:14.04.2
  RUN rm /bin/sh &amp;&amp; ln -s /bin/bash /bin/sh
  RUN apt-get -y update &amp;&amp; apt-get upgrade -y
  RUN apt-get install supervisor python build-essential python-dev python-pip python-setuptools -y
  RUN apt-get install libxml2-dev libxslt1-dev python-dev -y
  RUN apt-get install libpq-dev postgresql-common postgresql-client -y
  RUN apt-get install openssl openssl-blacklist openssl-blacklist-extra -y
  RUN apt-get install nginx -y
  RUN pip install "pip&gt;=7.0"
  RUN pip install virtualenv uwsgi
  
  RUN mkdir -p /var/log/supervisor
  ADD configs/new-canon/supervisord.conf /etc/supervisor/conf.d/supervisord.conf
  ADD canonicaliser_api /home/ubuntu/canonicaliser_api
  ADD config_local.py /home/ubuntu/canonicaliser_api/config/config_local.py
  RUN virtualenv /home/ubuntu/canonicaliser_api/venv
  RUN source /home/ubuntu/canonicaliser_api/venv/bin/activate &amp;&amp; pip install -r /home/ubuntu/canonicaliser_api/requirements.txt
  RUN export CFLAGS=-I/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/numpy/core/include/
  RUN source /home/ubuntu/canonicaliser_api/venv/bin/activate &amp;&amp; cd /home/ubuntu/canonicaliser_api/canonicaliser/cython_extensions/ &amp;&amp; python setup.py build_ext --inplace
  RUN cp /home/ubuntu/canonicaliser_api/canonicaliser/cython_extensions/canonicaliser/cython_extensions/*.so /home/ubuntu/canonicaliser_api/canonicaliser/cython_extensions
  RUN rm -rf /home/ubuntu/canonicaliser_api/canonicaliser/cython_extensions/canonicaliser
  RUN rm -r /home/ubuntu/canonicaliser_api/canonicaliser/cython_extensions/build
  
  RUN mkdir /var/run/flask-uwsgi
  RUN chown -R www-data:www-data /var/run/flask-uwsgi
  # RUN chown -R www-data:www-data /home/ubuntu/canonicaliser_api
  RUN mkdir /var/log/flask-uwsgi
  RUN touch /var/log/flask-uwsgi/dqs_canon.log
  RUN chown -R www-data:www-data /var/log/flask-uwsgi
  RUN mkdir /etc/flask-uwsgi
  
  ADD configs/new-canon/flask-uwsgi/flask-uwsgi.conf /etc/init/
  ADD configs/new-canon/flask-uwsgi/flask-uwsgi.ini /etc/flask-uwsgi/
  
  RUN echo "daemon off;" &gt;&gt; /etc/nginx/nginx.conf
  EXPOSE 8888
  #CMD uwsgi --ini /etc/flask-uwsgi/flask-uwsgi.ini
  CMD ["/usr/bin/supervisord"]
  </code></pre>
  
  <p><strong>supervisord:</strong></p>
  
  <pre><code>[supervisord]
  nodaemon=true
  
  [program:flask-uwsgi]
  command=/bin/bash -c "exec uwsgi --ini /etc/flask-uwsgi/flask-uwsgi.ini -DFOREGROUND"
  </code></pre>
  
  <p><strong>flask-uwsgi.ini:</strong></p>
  
  <pre><code>[uwsgi]
  chdir = /home/ubuntu/canonicaliser_api
  socket = /var/run/flask-uwsgi/flask-uwsgi.sock
  home = /home/ubuntu/canonicaliser_api/venv
  wsgi-file = /home/ubuntu/canonicaliser_api/flask_uwsgi.py
  callable = app
  master = true
  ; www-data uid/gid
  uid = 33
  gid = 33
  http-socket = :8888
  die-on-term = true
  processes = 4
  threads = 2
  logger = file:/var/log/flask-uwsgi/flask-uwsgi.log
  </code></pre>
  
  <p><strong>Error message:</strong></p>
  
  <pre><code>bash-3.2$ docker run -p 8888:8888 canon
  /usr/lib/python2.7/dist-packages/supervisor/options.py:295: UserWarning: Supervisord is running as root and it is searching for its configuration file in default locations (including its current working directory); you probably want to specify a "-c" argument specifying an absolute path to a configuration file for improved security.
    'Supervisord is running as root and it is searching '
  2015-08-06 11:27:42,590 CRIT Supervisor running as root (no user in config file)
  2015-08-06 11:27:42,591 WARN Included extra file "/etc/supervisor/conf.d/supervisord.conf" during parsing
  2015-08-06 11:27:42,625 INFO RPC interface 'supervisor' initialized
  2015-08-06 11:27:42,625 CRIT Server 'unix_http_server' running without any HTTP authentication checking
  2015-08-06 11:27:42,625 INFO supervisord started with pid 1
  2015-08-06 11:27:43,629 INFO spawned: 'flask-uwsgi' with pid 7
  2015-08-06 11:27:43,666 INFO exited: flask-uwsgi (exit status 1; not expected)
  2015-08-06 11:27:44,671 INFO spawned: 'flask-uwsgi' with pid 8
  2015-08-06 11:27:44,678 INFO exited: flask-uwsgi (exit status 1; not expected)
  2015-08-06 11:27:46,687 INFO spawned: 'flask-uwsgi' with pid 9
  2015-08-06 11:27:46,694 INFO exited: flask-uwsgi (exit status 1; not expected)
  2015-08-06 11:27:49,707 INFO spawned: 'flask-uwsgi' with pid 10
  2015-08-06 11:27:49,713 INFO exited: flask-uwsgi (exit status 1; not expected)
  2015-08-06 11:27:50,715 INFO gave up: flask-uwsgi entered FATAL state, too many start retries too quickly
  </code></pre>
  
  <p>if I run this like instead, it works fine. So It can't be bad uwsgi settings:</p>
  
  <pre><code>CMD uwsgi --ini /etc/flask-uwsgi/flask-uwsgi.ini
  </code></pre>