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Provide a multi-staged Dockerfile

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Many of the Docker images on hub.docker.com are outdated. The one
specified in the documentation doesn't exist anymore. We provide a
decent Dockerfile to build our own Docker image.

This uses a multi-stage build to avoid polluting the final image with
the intermediate artifacts. The final image is 155 MB. It should be
possible to squeeze it even more by using Alpine Linux for the last
two parts instead of Stretch.

The service is using gunicorn. The user is expected to complete the
installation with a reverse proxy configuration.
This commit is contained in:
Vincent Bernat 2018-04-16 20:43:54 +02:00
parent d854ce8347
commit 2b7c17a361
2 changed files with 45 additions and 1 deletions
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33
Dockerfile Normal file
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# First, compile JS stuff
FROM node
WORKDIR /src/
COPY . .
RUN npm install -g requirejs uglify-js jade bower
RUN make init js
# Second, create virtualenv
FROM python:3-stretch
WORKDIR /src/
COPY --from=0 /src .
RUN apt-get -qqy update && apt-get -qqy install python3-dev sqlite3
RUN python3 -m venv /isso \
&& . /isso/bin/activate \
&& python setup.py install \
&& pip install gunicorn
# Third, create final repository
FROM python:3-slim-stretch
WORKDIR /isso/
COPY --from=1 /isso .
# Configuration
VOLUME /db /config
EXPOSE 8080
ENV ISSO_SETTINGS /config/isso.cfg
CMD ["/isso/bin/gunicorn", "-b", "0.0.0.0:8080", "-w", "4", "--preload", "isso.run"]
# Example of use:
#
# docker build -t isso .
# docker run -it --rm -v /opt/isso:/config -v /opt/isso:/db -v $PWD:$PWD isso /isso/bin/isso -c \$ISSO_SETTINGS import disqus.xml
# docker run -d --rm --name isso -p 8080:8080 -v /opt/isso:/config -v /opt/isso:/db isso

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docs/docs/install.rst
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@ -149,7 +149,18 @@ Prebuilt Packages
* Fedora: https://copr.fedoraproject.org/coprs/jujens/isso/ — copr
repository. Built from Pypi, includes a systemctl unit script.
* Docker Image: https://registry.hub.docker.com/u/bl4n/isso/
Build a Docker image
--------------------
You can get a Docker image by running ``docker build . -t
isso``. Assuming you have your configuration in ``/opt/isso``, you can
use the following command to spawn the Docker container:
.. code-block:: sh
~> docker run -d --rm --name isso -p 127.0.0.1:8080:8080 -v /opt/isso:/config -v /opt/isso:/db isso
Then, you can use a reverse proxy to expose port 8080.
Install from Source
-------------------