A docker base container that contains Python and runs a gunicorn application server.

The number of workers to start can be configured using the GUNICORN_WORKERS environment variable. It defaults to 4.

The gunicorn logs are written to stdout, but also stored in two files in /app/log inside the container. By default, those are named access.log and error.log, but a prefix can be configured using the LOG_PREFIX environment variable. This allows multiple containers to share a volume.

Suppose your application lives in src/flubber and you have a package called flubber.app that contains a WSGI application with entrypoint application. The following Dockerfile will create an gunicorn image running that application:

FROM srittau/gunicorn:latest
COPY ./requirements.txt /app/requirements.txt
RUN /app/virtualenv/bin/pip --disable-pip-version-check install -q -r /app/requirements.txt
COPY ./src/flubber /app/flubber
RUN python -m compileall /app
CMD ["flubber.app"]