ARG PYTHON_VERSION=3.6

FROM python:${PYTHON_VERSION}-alpine as base

RUN apk update && \

apk add \

--no-cache \

--virtual \

.build-deps \

gcc musl-dev \

postgresql-dev \

libxml2-dev \

libxslt-dev \

libxslt-dev \

postgresql-libs

FROM base as build

WORKDIR /wheels

COPY requirements/* ./

ARG ENV=production

RUN pip install -U pip \

&& pip wheel -r ./${ENV}.txt

FROM base as final

ARG APP_DIR=/app

WORKDIR $APP_DIR

COPY --from=build /wheels /wheels

ARG ENV=production

RUN pip install -U pip \

&& pip install -r /wheels/${ENV}.txt \

-f /wheels \

&& rm -rf /wheels \

&& rm -rf /root/.cache/pip/*

COPY . .