Dockerfile for development

Signed-off-by: Rolf Håvard Blindheim <rhblind@gmail.com>

Dockerfile

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+FROM        python:3-alpine
+
+ENV         DEBIAN_FRONTEND noninteractive
+ENV         PYTHONPATH /usr/local/src
+
+RUN         apk add --no-cache --update \
+                --repository http://dl-cdn.alpinelinux.org/alpine/edge/testing \
+                binutils build-base python3-dev gdal geos \
+                && rm -rf /var/cache/apk/*
+
+COPY        . /usr/local/src
+WORKDIR     /usr/local/src
+RUN         pip install -U pip setuptools \
+                && pip install -r requirements.txt
+
+VOLUME      /usr/local/src
+CMD         ["sh"]