61 lines
2 KiB
Text
61 lines
2 KiB
Text
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# Use an official Python runtime based on Debian 10 "buster" as a parent image.
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FROM python:3.8.1-slim-buster
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# Add user that will be used in the container.
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RUN useradd wagtail
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# Port used by this container to serve HTTP.
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EXPOSE 8000
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# Set environment variables.
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# 1. Force Python stdout and stderr streams to be unbuffered.
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# 2. Set PORT variable that is used by Gunicorn. This should match "EXPOSE"
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# command.
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ENV PYTHONUNBUFFERED=1 \
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PORT=8000
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# Install system packages required by Wagtail and Django.
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RUN apt-get update --yes --quiet && apt-get install --yes --quiet --no-install-recommends \
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build-essential \
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libpq-dev \
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libmariadbclient-dev \
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libjpeg62-turbo-dev \
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zlib1g-dev \
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libwebp-dev \
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&& rm -rf /var/lib/apt/lists/*
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# Install the application server.
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RUN pip install "gunicorn==20.0.4"
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# Install the project requirements.
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COPY requirements.txt /
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RUN pip install -r /requirements.txt
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# Use /app folder as a directory where the source code is stored.
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WORKDIR /app
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# Set this directory to be owned by the "wagtail" user. This Wagtail project
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# uses SQLite, the folder needs to be owned by the user that
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# will be writing to the database file.
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RUN chown wagtail:wagtail /app
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# Copy the source code of the project into the container.
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COPY --chown=wagtail:wagtail . .
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# Use user "wagtail" to run the build commands below and the server itself.
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USER wagtail
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# Collect static files.
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RUN python manage.py collectstatic --noinput --clear
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# Runtime command that executes when "docker run" is called, it does the
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# following:
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# 1. Migrate the database.
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# 2. Start the application server.
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# WARNING:
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# Migrating database at the same time as starting the server IS NOT THE BEST
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# PRACTICE. The database should be migrated manually or using the release
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# phase facilities of your hosting platform. This is used only so the
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# Wagtail instance can be started with a simple "docker run" command.
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CMD set -xe; python manage.py migrate --noinput; gunicorn blog.wsgi:application
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