initial commit

compose/production/django/Dockerfile

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+ARG PYTHON_VERSION=3.9-slim-bullseye
+
+
+
+# define an alias for the specfic python version used in this file.
+FROM python:${PYTHON_VERSION} as python
+
+# Python build stage
+FROM python as python-build-stage
+
+ARG BUILD_ENVIRONMENT=production
+
+# Install apt packages
+RUN apt-get update && apt-get install --no-install-recommends -y \
+  # dependencies for building Python packages
+  build-essential \
+  # psycopg2 dependencies
+  libpq-dev
+
+# Requirements are installed here to ensure they will be cached.
+COPY ./requirements .
+
+# Create Python Dependency and Sub-Dependency Wheels.
+RUN pip wheel --wheel-dir /usr/src/app/wheels  \
+  -r ${BUILD_ENVIRONMENT}.txt
+
+
+# Python 'run' stage
+FROM python as python-run-stage
+
+ARG BUILD_ENVIRONMENT=production
+ARG APP_HOME=/app
+
+ENV PYTHONUNBUFFERED 1
+ENV PYTHONDONTWRITEBYTECODE 1
+ENV BUILD_ENV ${BUILD_ENVIRONMENT}
+
+WORKDIR ${APP_HOME}
+
+RUN addgroup --system django \
+    && adduser --system --ingroup django django
+
+
+# Install required system dependencies
+RUN apt-get update && apt-get install --no-install-recommends -y \
+  # psycopg2 dependencies
+  libpq-dev \
+  # Translations dependencies
+  gettext \
+  # cleaning up unused files
+  && apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false \
+  && rm -rf /var/lib/apt/lists/*
+
+# All absolute dir copies ignore workdir instruction. All relative dir copies are wrt to the workdir instruction
+# copy python dependency wheels from python-build-stage
+COPY --from=python-build-stage /usr/src/app/wheels  /wheels/
+
+# use wheels to install python dependencies
+RUN pip install --no-cache-dir --no-index --find-links=/wheels/ /wheels/* \
+  && rm -rf /wheels/
+
+
+COPY --chown=django:django ./compose/production/django/entrypoint /entrypoint
+RUN sed -i 's/\r$//g' /entrypoint
+RUN chmod +x /entrypoint
+
+
+COPY --chown=django:django ./compose/production/django/start /start
+RUN sed -i 's/\r$//g' /start
+RUN chmod +x /start
+
+
+# copy application code to WORKDIR
+COPY --chown=django:django . ${APP_HOME}
+
+# make django owner of the WORKDIR directory as well.
+RUN chown django:django ${APP_HOME}
+
+USER django
+
+ENTRYPOINT ["/entrypoint"]

compose/production/django/entrypoint

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+#!/bin/bash
+
+set -o errexit
+set -o pipefail
+set -o nounset
+
+
+
+
+if [ -z "${POSTGRES_USER}" ]; then
+    base_postgres_image_default_user='postgres'
+    export POSTGRES_USER="${base_postgres_image_default_user}"
+fi
+export DATABASE_URL="postgres://${POSTGRES_USER}:${POSTGRES_PASSWORD}@${POSTGRES_HOST}:${POSTGRES_PORT}/${POSTGRES_DB}"
+
+postgres_ready() {
+python << END
+import sys
+
+import psycopg2
+
+try:
+    psycopg2.connect(
+        dbname="${POSTGRES_DB}",
+        user="${POSTGRES_USER}",
+        password="${POSTGRES_PASSWORD}",
+        host="${POSTGRES_HOST}",
+        port="${POSTGRES_PORT}",
+    )
+except psycopg2.OperationalError:
+    sys.exit(-1)
+sys.exit(0)
+
+END
+}
+until postgres_ready; do
+  >&2 echo 'Waiting for PostgreSQL to become available...'
+  sleep 1
+done
+>&2 echo 'PostgreSQL is available'
+
+exec "$@"

compose/production/django/start

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+#!/bin/bash
+
+set -o errexit
+set -o pipefail
+set -o nounset
+
+
+python /app/manage.py collectstatic --noinput
+
+/usr/local/bin/gunicorn config.wsgi --bind 0.0.0.0:5000 --chdir=/app