docker_librom.yml

name: docker-image
on:
  workflow_call:

env:
  REGISTRY: ghcr.io
  # github.repository as <account>/<repo>
  IMAGE_NAME: llnl/pylibROM/pylibROM_env
  DOCKERPATH: docker/librom

jobs:
  docker-ci:
    runs-on: ubuntu-latest
    name: "docker env"
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
      - uses: Ana06/get-changed-files@v2.2.0       
        id: files
      - name: DockerPATH configuration
        run: echo "DOCKERPATH=$DOCKERPATH"
      - name: DockerPATH - check if files in docker path changed
        if: contains(steps.files.outputs.all,env.DOCKERPATH) || contains(steps.files.outputs.all,'docker_librom.yml')
        run: |
          echo "CI container needs rebuilding..."
          echo "CI_NEEDS_REBUILD=true" >> $GITHUB_ENV
      - name: Log into registry ${{ env.REGISTRY }}
        if: env.CI_NEEDS_REBUILD
        uses: docker/login-action@v2
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Extract metadata (tags, labels) for Docker
        id: meta
        if: env.CI_NEEDS_REBUILD
        uses: docker/metadata-action@v4
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: type=sha
          flavor: latest=true
      - name: Build Container motd
        if: env.CI_NEEDS_REBUILD
        run: |
          echo "#!/bin/bash" > ${{env.DOCKERPATH}}/motd.sh
          echo "echo --------------------------" >> ${{env.DOCKERPATH}}/motd.sh
          echo "echo pylibrom_env/CI Development Container"  >> ${{env.DOCKERPATH}}/motd.sh
          echo "echo \"Revision: `echo ${GITHUB_SHA} | cut -c1-8`\"" >> ${{env.DOCKERPATH}}/motd.sh
          echo "echo --------------------------" >> ${{env.DOCKERPATH}}/motd.sh
          chmod 755 ${{env.DOCKERPATH}}/motd.sh
          cat ${{env.DOCKERPATH}}/motd.sh
      - name: Docker Image - Build and push
        if: env.CI_NEEDS_REBUILD
        uses: docker/build-push-action@v3
        with:
          push: true
          context: ${{ env.DOCKERPATH }}
          tags: ${{ steps.meta.outputs.tags }}