Django + PostGIS Docker File

Dockerfile

FROM python:3.6-alpine

ENV PYTHONUNBUFFERED 1

RUN apk update \
  # psycopg2 dependencies
  && apk add --virtual build-deps gcc python3-dev musl-dev \
  && apk add postgresql-dev \
  # Pillow dependencies
  && apk add jpeg-dev zlib-dev freetype-dev lcms2-dev openjpeg-dev tiff-dev tk-dev tcl-dev \
  # CFFI dependencies
  && apk add libffi-dev py-cffi \
  # Translations dependencies
  && apk add gettext \
  # Need git to install packages from git
  && apk add git

# ADD PostGIS here
# POSTGIS dependencies
ENV POSTGIS_VERSION 2.4.4
ENV POSTGIS_SHA256 0dff4902556ad45430e2b85dbe7e9baa758c6eb0bfd5ff6948f478beddd56b67

RUN set -ex \
    \
    && apk add --no-cache --virtual .fetch-deps \
        ca-certificates \
        openssl \
        tar \
    \
    && wget -O postgis.tar.gz "https://github.com/postgis/postgis/archive/$POSTGIS_VERSION.tar.gz" \
    && echo "$POSTGIS_SHA256 *postgis.tar.gz" | sha256sum -c - \
    && mkdir -p /usr/src/postgis \
    && tar \
        --extract \
        --file postgis.tar.gz \
        --directory /usr/src/postgis \
        --strip-components 1 \
    && rm postgis.tar.gz \
    \
    && apk add --no-cache --virtual .build-deps \
        autoconf \
        automake \
        g++ \
        json-c-dev \
        libtool \
        libxml2-dev \
        make \
        perl \
    \
    # add libcrypto from (edge:main) for gdal-2.3.0
    && apk add --no-cache --virtual .crypto-rundeps \
        --repository http://dl-cdn.alpinelinux.org/alpine/edge/main \
        libressl2.7-libcrypto \
    && apk add --no-cache --virtual .build-deps-testing \
        --repository http://dl-cdn.alpinelinux.org/alpine/edge/testing \
        gdal-dev \
        geos-dev \
        proj4-dev \
        protobuf-c-dev \
    && cd /usr/src/postgis \
    && ./autogen.sh \
# configure options taken from:
# https://anonscm.debian.org/cgit/pkg-grass/postgis.git/tree/debian/rules?h=jessie
    && ./configure \
#       --with-gui \
    && make \
    && make install \
    && apk add --no-cache --virtual .postgis-rundeps \
        json-c \
    && apk add --no-cache --virtual .postgis-rundeps-testing \
        --repository http://dl-cdn.alpinelinux.org/alpine/edge/testing \
        geos \
        gdal \
        proj4 \
        protobuf-c \
    && cd / \
    && rm -rf /usr/src/postgis \
    && apk del .fetch-deps .build-deps .build-deps-testing
#  && apk del .fetch-deps .build-deps .build-deps-testing
# END POSTGIS Changes

# Requirements have to be pulled and installed here, otherwise caching won't work
COPY ./requirements /requirements
RUN pip install -r /requirements/local.txt

COPY ./compose/production/django/entrypoint.sh /entrypoint.sh
RUN sed -i 's/\r//' /entrypoint.sh
RUN chmod +x /entrypoint.sh

COPY ./compose/local/django/start.sh /start.sh
RUN sed -i 's/\r//' /start.sh
RUN chmod +x /start.sh

COPY ./compose/local/django/celery/worker/start.sh /start-celeryworker.sh
RUN sed -i 's/\r//' /start-celeryworker.sh
RUN chmod +x /start-celeryworker.sh

COPY ./compose/local/django/celery/beat/start.sh /start-celerybeat.sh
RUN sed -i 's/\r//' /start-celerybeat.sh
RUN chmod +x /start-celerybeat.sh

WORKDIR /app

ENTRYPOINT ["/entrypoint.sh"]

ERROR: unsatisfiable constraints:
  libressl2.7-libcrypto (missing):
    required by: .crypto-rundeps-20200203.110329[libressl2.7-libcrypto]