# syntax=docker/dockerfile:1.4 FROM python:3-alpine AS builder WORKDIR /code COPY requirements.txt /code RUN target=/root/.cache/pip \ pip3 install -r requirements.txt COPY . . ENV FLASK_APP app.py # This might be scary to leave on #ENV FLASK_ENV development ENV FLASK_RUN_PORT 8000 ENV FLASK_RUN_HOST 0.0.0.0 RUN flask --version EXPOSE 8000 CMD ["flask", "run"]