powerdns-admin/docker/Dockerfile

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Docker
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FROM alpine:3.12 AS builder
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LABEL maintainer="k@ndk.name"
ARG BUILD_DEPENDENCIES="build-base \
libffi-dev \
libxml2-dev \
mariadb-connector-c-dev \
openldap-dev \
python3-dev \
xmlsec-dev \
yarn"
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ENV LC_ALL=en_US.UTF-8 \
LANG=en_US.UTF-8 \
LANGUAGE=en_US.UTF-8 \
FLASK_APP=/build/powerdnsadmin/__init__.py
# Get dependencies
# py3-pip should not belong to BUILD_DEPENDENCIES. Otherwise, when we remove
# them with "apk del" at the end of build stage, the python requests module
# will be removed as well - (Tested with alpine:3.12 and python 3.8.5).
RUN apk add --no-cache ${BUILD_DEPENDENCIES} && \
apk add --no-cache py3-pip
WORKDIR /build
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# We copy just the requirements.txt first to leverage Docker cache
COPY ./requirements.txt /build/requirements.txt
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# Get application dependencies
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RUN pip install --upgrade pip && \
pip install -r requirements.txt
# Add sources
COPY . /build
# Prepare assets
RUN yarn install --pure-lockfile --production && \
yarn cache clean && \
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sed -i -r -e "s|'cssmin',\s?'cssrewrite'|'cssmin'|g" /build/powerdnsadmin/assets.py && \
flask assets build
RUN mv /build/powerdnsadmin/static /tmp/static && \
mkdir /build/powerdnsadmin/static && \
cp -r /tmp/static/generated /build/powerdnsadmin/static && \
cp -r /tmp/static/assets /build/powerdnsadmin/static && \
cp -r /tmp/static/img /build/powerdnsadmin/static && \
find /tmp/static/node_modules -name 'fonts' -exec cp -r {} /build/powerdnsadmin/static \; && \
find /tmp/static/node_modules/icheck/skins/square -name '*.png' -exec cp {} /build/powerdnsadmin/static/generated \;
RUN { \
echo "from flask_assets import Environment"; \
echo "assets = Environment()"; \
echo "assets.register('js_login', 'generated/login.js')"; \
echo "assets.register('js_validation', 'generated/validation.js')"; \
echo "assets.register('css_login', 'generated/login.css')"; \
echo "assets.register('js_main', 'generated/main.js')"; \
echo "assets.register('css_main', 'generated/main.css')"; \
} > /build/powerdnsadmin/assets.py
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# Move application
RUN mkdir -p /app && \
cp -r /build/migrations/ /build/powerdnsadmin/ /build/run.py /app && \
mkdir -p /app/configs && \
cp -r /build/configs/docker_config.py /app/configs
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# Cleanup
RUN pip install pip-autoremove && \
pip-autoremove cssmin -y && \
pip-autoremove jsmin -y && \
pip-autoremove pytest -y && \
pip uninstall -y pip-autoremove && \
apk del ${BUILD_DEPENDENCIES}
# Build image
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FROM alpine:3.12
ENV FLASK_APP=/app/powerdnsadmin/__init__.py \
USER=pda
RUN apk add --no-cache mariadb-connector-c postgresql-client py3-gunicorn py3-psycopg2 xmlsec tzdata libcap && \
addgroup -S ${USER} && \
adduser -S -D -G ${USER} ${USER} && \
mkdir /data && \
chown ${USER}:${USER} /data && \
setcap cap_net_bind_service=+ep $(readlink -f /usr/bin/python3) && \
apk del libcap
COPY --from=builder /usr/bin/flask /usr/bin/
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COPY --from=builder /usr/lib/python3.8/site-packages /usr/lib/python3.8/site-packages/
COPY --from=builder --chown=root:${USER} /app /app/
COPY ./docker/entrypoint.sh /usr/bin/
WORKDIR /app
RUN chown ${USER}:${USER} ./configs /app && \
cat ./powerdnsadmin/default_config.py ./configs/docker_config.py > ./powerdnsadmin/docker_config.py
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EXPOSE 80/tcp
USER ${USER}
HEALTHCHECK CMD ["wget","--output-document=-","--quiet","--tries=1","http://127.0.0.1/"]
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ENTRYPOINT ["entrypoint.sh"]
CMD ["gunicorn","powerdnsadmin:create_app()"]