# syntax=docker/dockerfile:1.4 FROM --platform=$BUILDPLATFORM python:3.10-alpine AS builder WORKDIR /code COPY requirements.txt /code RUN --mount=type=cache,target=/root/.cache/pip \ pip3 install -r requirements.txt COPY . . ENV FLASK_APP hello.py ENV FLASK_ENV development ENV FLASK_RUN_PORT 8000 ENV FLASK_RUN_HOST 0.0.0.0 EXPOSE 8000 CMD ["flask", "run"] FROM builder AS dev-envs RUN <