Dockerfile

# vim: syntax=dockerfile
### Multi-stage build

### 1. django: install dependencies
# FROM python:3.7.7-alpine3.11 for build step
FROM python@sha256:778802b5b9797279772814fb15a7c6ee494848ced17965bb57092a0b900c0e4f as builder

# install dependencies to build c-extensions
RUN apk update && apk add --no-cache \
        gcc                          \
        build-base                   \
        libstdc++                    \
        libffi-dev                   \
        linux-headers                \
        make                         \
        musl-dev                     \
        postgresql-dev==12.2-r0 &&   \
        python -m pip install pipenv==2018.11.26

# set some env vars for python stuffs
ENV PIPENV_COLORBLIND=true         \
  PIPENV_HIDE_EMOJIS=true          \
  PIPENV_NOSPIN=true               \
  PIP_DEFAULT_TIMEOUT=100          \
  PIP_DISABLE_PIP_VERSION_CHECK=on \
  PIP_NO_CACHE_DIR=off             \
  PYTHONDONTWRITEBYTECODE=1        \
  PYTHONFAULTHANDLER=1             \
  PYTHONHASHSEED=random            \
  PYTHONUNBUFFERED=1               \
  ENV=prod

# install python dependencies with pip
WORKDIR /code
COPY Pipfile Pipfile.lock /code/
RUN pipenv install --system --deploy --ignore-pipfile

# purge dependencies we only needed to build c-extensions
RUN apk del --purge   \
        gcc           \
        build-base    \
        linux-headers \
        musl-dev      \
        make &&       \
        rm -rf /root/.cache /tmp/* &&            \
        find /usr -name '*.h' -type f -delete && \
        { find /usr/local/lib -name '*.dist-info' -exec rm -rf '{}' \; 2> /dev/null || true; }

# copy source
COPY . /code

ARG GIT_HEAD
ARG GIT_BRANCH
ENV  GIT_HEAD=$GIT_HEAD     \
     GIT_BRANCH=$GIT_BRANCH

LABEL maintainer="[email protected]"
LABEL branch=$GIT_BRANCH
LABEL version=$GIT_HEAD
RUN pip install importlib_metadata   # so we can build some wheels

CMD ["python", "manage.py", "preflight"]