FROM alpine:edge

ADD ["requirements.txt", "/"]
RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing/" >> /etc/apk/repositories && \
    apk add --update --no-cache libpng libpng-dev freetype freetype-dev g++ python3 python3-dev libstdc++ openblas-dev && \
    pip3 --no-cache-dir install -r requirements.txt && \
    apk del libpng-dev freetype-dev g++ python3-dev openblas-dev && \
    rm requirements.txt