name: Dockerlint
on:
  push:
  pull_request:
  workflow_dispatch:
jobs:
  docker-lint:
    runs-on: ubuntu-latest
    name: docker-lint
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install hadolint
        run: |
          sudo wget https://github.com/hadolint/hadolint/releases/latest/download/hadolint-Linux-x86_64 -O /usr/bin/hadolint
          sudo chmod +x /usr/bin/hadolint
      - name: run lint
        run: |
          DOCKERFILES="$(find . -name "*Dockerfile*")"
          for file in $(echo "$DOCKERFILES" | tr " " "\n"); do
            # DL3003 warning: Use WORKDIR to switch to a directory
            # DL3018 warning: Pin versions in apk add. Instead of `apk add <package>` use `apk add <package>=<version>`
            # DL3013 warning: Pin versions in pip. Instead of `pip install <package>` use `pip install <package>==<version>` or `pip install --requirement <requirements file>`
            hadolint "$file" --ignore DL3003 --ignore DL3013 --ignore DL3018 | tee -a hadolint.log
          done
          if grep -q "DL[0-9]\+\|SC[0-9]\+" hadolint.log; then
            exit 1
          fi