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# Django impress
# ---- base image to inherit from ----
FROM python:3.12.6-alpine3.20 AS base
# Upgrade pip to its latest release to speed up dependencies installation
RUN python -m pip install --upgrade pip setuptools
# Upgrade system packages to install security updates
RUN apk update && \
apk upgrade
# ---- Back-end builder image ----
FROM base AS back-builder
WORKDIR /builder
# Install Rust and Cargo using Alpine's package manager
RUN apk add --no-cache \
build-base \
libffi-dev \
rust \
cargo
# Copy required python dependencies
COPY ./src/backend /builder
RUN mkdir /install && \
pip install --prefix=/install .
# ---- mails ----
FROM node:20 AS mail-builder
COPY ./src/mail /mail/app
WORKDIR /mail/app
RUN yarn install --frozen-lockfile && \
yarn build
# ---- static link collector ----
FROM base AS link-collector
ARG IMPRESS_STATIC_ROOT=/data/static
# Install pango & rdfind
RUN apk add \
pango \
rdfind
# Copy installed python dependencies
COPY --from=back-builder /install /usr/local
# Copy impress application (see .dockerignore)
COPY ./src/backend /app/
WORKDIR /app
# collectstatic
RUN DJANGO_CONFIGURATION=Build \
python manage.py collectstatic --noinput
# Replace duplicated file by a symlink to decrease the overall size of the
# final image
RUN rdfind -makesymlinks true -followsymlinks true -makeresultsfile false ${IMPRESS_STATIC_ROOT}
# ---- Core application image ----
FROM base AS core
ENV PYTHONUNBUFFERED=1
# Install required system libs
RUN apk add \
cairo \
file \
font-noto \
font-noto-emoji \
gettext \
gdk-pixbuf \
libffi-dev \
pango \
shared-mime-info
RUN wget https://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types -O /etc/mime.types
# Copy entrypoint
COPY ./docker/files/usr/local/bin/entrypoint /usr/local/bin/entrypoint
# Give the "root" group the same permissions as the "root" user on /etc/passwd
# to allow a user belonging to the root group to add new users; typically the
# docker user (see entrypoint).
RUN chmod g=u /etc/passwd
# Copy installed python dependencies
COPY --from=back-builder /install /usr/local
# Copy impress application (see .dockerignore)
COPY ./src/backend /app/
WORKDIR /app
# Generate compiled translation messages
RUN DJANGO_CONFIGURATION=Build \
python manage.py compilemessages
# We wrap commands run in this container by the following entrypoint that
# creates a user on-the-fly with the container user ID (see USER) and root group
# ID.
ENTRYPOINT [ "/usr/local/bin/entrypoint" ]
# ---- Development image ----
FROM core AS backend-development
# Switch back to the root user to install development dependencies
USER root:root
# Install psql
RUN apk add postgresql-client
# Uninstall impress and re-install it in editable mode along with development
# dependencies
RUN pip uninstall -y impress
RUN pip install -e .[dev]
# Restore the un-privileged user running the application
ARG DOCKER_USER
USER ${DOCKER_USER}
# Target database host (e.g. database engine following docker compose services
# name) & port
ENV DB_HOST=postgresql \
DB_PORT=5432
# Run django development server
CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]
# ---- Production image ----
FROM core AS backend-production
ARG IMPRESS_STATIC_ROOT=/data/static
# Gunicorn
RUN mkdir -p /usr/local/etc/gunicorn
COPY docker/files/usr/local/etc/gunicorn/impress.py /usr/local/etc/gunicorn/impress.py
# Un-privileged user running the application
ARG DOCKER_USER
USER ${DOCKER_USER}
# Copy statics
COPY --from=link-collector ${IMPRESS_STATIC_ROOT} ${IMPRESS_STATIC_ROOT}
# Copy impress mails
COPY --from=mail-builder /mail/backend/core/templates/mail /app/core/templates/mail
# The default command runs gunicorn WSGI server in impress's main module
CMD ["gunicorn", "-c", "/usr/local/etc/gunicorn/impress.py", "impress.wsgi:application"]