docker-pre-commit/Dockerfile

FROM python:3-slim

RUN apt-get update && apt-get install -y \
  git \
  docker \
  && rm -rf /var/lib/apt/lists/*

RUN pip install --no-cache-dir pre-commit docker-compose

RUN mkdir -p /data/pre-commit-cache
ENV PRE_COMMIT_HOME=/data/pre-commit-cache

CMD ["pre-commit", "run", "--all-files"]