build-push-dev-image.yml

# Workflow responsible for the 
# development release processes.
#
name: Build-Push-Dev-Image
on:
  push:
    branches:
      - develop
    paths-ignore:
      - README.md
      - .old_cicd/*
      - .github/*
      - .github/workflows/*
      - LICENSE
      - .gitignore
      - .dockerignore
      - .githooks
  # Do not build another image on a pull request.
  # Any push to develop will trigger a new build however.
  pull_request:
    branches-ignore:
      - '*'

jobs:
  build-push-dev-image:
    runs-on: ubuntu-latest
    steps:
    
    - name: Checkout Code
      uses: actions/checkout@v3
      with:
        ref: ${{ github.head_ref }} 
        # fetch-depth: 0 means, get all branches and commits
        fetch-depth: 0

    - name: Set short git commit SHA
      id: vars
      run: |
        echo "short_sha=$(git rev-parse --short ${{ github.sha }})" >> $GITHUB_OUTPUT
    # https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

    - name: Confirm git commit SHA output
      run: echo ${{ steps.vars.outputs.short_sha }}

    # Docker Buildx is important to caching in the Build And Push Container
    # step
    # https://github.com/marketplace/actions/build-and-push-docker-images

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3
      with:
        driver-opts: |
          network=host

    - name: Login to DockerHub
      uses: docker/login-action@v3
      with:
        username: ${{ secrets.DOCKERHUB_USERNAME }}
        password: ${{ secrets.DOCKERHUB_TOKEN }}
        logout: true

    - name: Login to Container Registry
      uses: docker/login-action@v3
      with:
        registry: containers.renci.org
        username: ${{ secrets.CONTAINERHUB_USERNAME }}
        password: ${{ secrets.CONTAINERHUB_TOKEN }}
        logout: true


    # Notes on Cache: 
    # https://docs.docker.com/build/ci/github-actions/examples/#inline-cache
    - name: Build Push Container
      uses: docker/build-push-action@v5
      with:
        context: .
        push: true
        # Push to renci-registry and dockerhub here.
        # cache comes from dockerhub.
        tags: |
          ${{ github.repository }}:develop
          ${{ github.repository }}:${{ steps.vars.outputs.short_sha }}
          containers.renci.org/${{ github.repository }}:develop
          containers.renci.org/${{ github.repository }}:${{ steps.vars.outputs.short_sha }}
        cache-from: type=registry,ref=${{ github.repository }}:buildcache-dev
        cache-to: type=registry,ref=${{ github.repository }}:buildcache-dev,mode=max