FROM python:alpine

ADD requirements.txt /app/requirements.txt

RUN apk update && apk upgrade && \
    apk add --no-cache bash && \
    rm -rf /var/cache/apk/* && \
    set -ex && \
    python -m venv /env && \
    /env/bin/pip install --upgrade pip && \
    /env/bin/pip install --no-cache-dir -r /app/requirements.txt && \
    runDeps="$(scanelf --needed --nobanner --recursive /env \
        | awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
        | sort -u \
        | xargs -r apk info --installed \
        | sort -u)" && \
    apk add --virtual rundeps $runDeps && \
    apk del rundeps

ADD . /app
WORKDIR /app

ENV VIRTUAL_ENV=/env
ENV PATH=/env/bin:$PATH

CMD ["python", "main.py"]