Functions/template/python3-flask/Dockerfile

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ARG PYTHON_VERSION=3.11
FROM --platform=${TARGETPLATFORM:-linux/amd64} ghcr.io/openfaas/of-watchdog:0.9.10 as watchdog
FROM --platform=${TARGETPLATFORM:-linux/amd64} python:${PYTHON_VERSION}-alpine as build
COPY --from=watchdog /fwatchdog /usr/bin/fwatchdog
RUN chmod +x /usr/bin/fwatchdog
ARG ADDITIONAL_PACKAGE
# Alternatively use ADD https:// (which will not be cached by Docker builder)
RUN apk --no-cache add openssl-dev ${ADDITIONAL_PACKAGE}
# Add non root user
RUN addgroup -S app && adduser app -S -G app
RUN chown app /home/app
USER app
ENV PATH=$PATH:/home/app/.local/bin
WORKDIR /home/app/
COPY --chown=app:app index.py .
COPY --chown=app:app requirements.txt .
USER root
RUN pip install --no-cache-dir -r requirements.txt
# Build the function directory and install any user-specified components
USER app
RUN mkdir -p function
RUN touch ./function/__init__.py
WORKDIR /home/app/function/
COPY --chown=app:app function/requirements.txt .
RUN pip install --no-cache-dir --user -r requirements.txt
#install function code
USER root
COPY --chown=app:app function/ .
FROM build as test
ARG TEST_COMMAND=tox
ARG TEST_ENABLED=true
RUN [ "$TEST_ENABLED" = "false" ] && echo "skipping tests" || eval "$TEST_COMMAND"
FROM build as ship
WORKDIR /home/app/
#configure WSGI server and healthcheck
USER app
ENV fprocess="python index.py"
ENV cgi_headers="true"
ENV mode="http"
ENV upstream_url="http://127.0.0.1:5000"
HEALTHCHECK --interval=5s CMD [ -e /tmp/.lock ] || exit 1
CMD ["fwatchdog"]