Dockerified the pyop example app

Author: John Van de Meulebrouck Brendgard

Dockerfile

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+FROM ubuntu:16.04
+
+ENV DEBIAN_FRONTEND noninteractive
+
+RUN /bin/echo -e "deb http://se.archive.ubuntu.com/ubuntu xenial main restricted universe\ndeb http://archive.ubuntu.com/ubuntu xenial-updates main restricted universe\ndeb http://security.ubuntu.com/ubuntu xenial-security main restricted universe" > /etc/apt/sources.list
+
+RUN apt-get update && \
+    apt-get -y dist-upgrade && \
+    apt-get -y install \
+        python3-pip \
+        python-virtualenv \
+        libpython3-dev \
+        python-setuptools \
+        build-essential \
+        libffi-dev \
+        libssl-dev \
+        iputils-ping \
+    && apt-get clean
+
+RUN rm -rf /var/lib/apt/lists/*
+
+RUN adduser --system --no-create-home --shell /bin/false --group pyop
+
+COPY . /opt/pyop/src/
+COPY docker/setup.sh /opt/pyop/setup.sh
+COPY docker/start.sh /start.sh
+RUN /opt/pyop/setup.sh
+
+# Add Dockerfile to the container as documentation
+COPY Dockerfile /Dockerfile
+
+WORKDIR /
+
+EXPOSE 9090
+
+CMD ["bash", "/start.sh"]

application.cfg

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+example/application.cfg

docker/setup.sh

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+#!/bin/bash
+#
+# Install all requirements
+#
+
+set -e
+set -x
+
+PYPI="https://pypi.nordu.net/simple/"
+ping -c 1 -q pypiserver.docker && PYPI="http://pypiserver.docker:8080/simple/"
+
+echo "#############################################################"
+echo "$0: Using PyPi URL ${PYPI}"
+echo "#############################################################"
+
+virtualenv -p python3 /opt/pyop
+/opt/pyop/bin/pip install -U pip
+
+# setup.py points to current directory
+# so we need to change to the right one.
+cd /opt/pyop/src
+
+/opt/pyop/bin/python3 setup.py install
+/opt/pyop/bin/pip install Flask
+/opt/pyop/bin/pip install gunicorn

docker/start.sh

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+#!/bin/sh
+
+set -e
+set -x
+
+. /opt/pyop/bin/activate
+
+# nice to have in docker run output, to check what
+# version of something is actually running.
+/opt/pyop/bin/pip freeze
+
+export PYTHONPATH=/opt/pyop/src
+
+start-stop-daemon --start \
+    -c pyop:pyop \
+    --exec /opt/pyop/bin/gunicorn \
+    --pidfile /var/run/pyop.pid \
+    --chdir /opt/pyop/src \
+    -- \
+    example.wsgi:app \
+    -b :9090 \
+    --certfile example/https.crt \
+    --keyfile example/https.key
+

example/__init__.py

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+example/signing_key.pem