push-to-registry/.github/workflows/verify-login-push.yml

# This workflow will perform a test whenever there
# is some change in code done to ensure that the changes
# are not buggy and we are getting the desired output.
name: Login and Push
on:
  push:
  workflow_dispatch:
  schedule:
    - cron: '0 0 * * *'  # every day at midnight

env:
  IMAGE_NAME: myimage
  IMAGE_REGISTRY: quay.io
  IMAGE_TAGS: v1 ${{ github.sha }}

jobs:
  login-and-push:
    name: Login and push image to Quay.io
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
      matrix:
        install_latest: [ true, false ]
      
    steps:
      - name: Install latest podman
        if: matrix.install_latest
        # https://podman.io/getting-started/installation
        run: |
          . /etc/os-release
          echo "deb https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/xUbuntu_${VERSION_ID}/ /" | sudo tee /etc/apt/sources.list.d/devel:kubic:libcontainers:stable.list
          curl -sSfL "https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/xUbuntu_${VERSION_ID}/Release.key" | sudo apt-key add -
          sudo apt-get update
          sudo apt-get -y upgrade
          sudo apt-get -y install podman          

      # Checkout push-to-registry action github repository
      - name: Checkout Push to Registry action
        uses: actions/checkout@v2

      - name: Create Dockerfile
        run: |
          cat > Dockerfile<<EOF
          FROM busybox
          RUN echo "hello world"
          EOF          

      # Build image using Buildah action
      - name: Build Image
        id: build_image
        uses: redhat-actions/buildah-build@v2
        with:
          image: ${{ env.IMAGE_NAME }}
          layers: false
          tags: ${{ env.IMAGE_TAGS }}
          dockerfiles: |
            ./Dockerfile            

      # Authenticate to container image registry to push the image
      - name: Podman Login
        uses: redhat-actions/podman-login@v1
        with:
          registry: quay.io
          username: ${{ secrets.REGISTRY_USER }}
          password: ${{ secrets.REGISTRY_PASSWORD }}

      # Push the image to Quay.io (Image Registry)
      - name: Push To Quay
        uses: ./
        id: push
        with:
          image: ${{ steps.build_image.outputs.image }}
          tags: ${{ steps.build_image.outputs.tags }}
          registry: ${{ env.IMAGE_REGISTRY }}/${{ secrets.REGISTRY_USER }}
          extra-args: |
            --disable-content-trust            

      - name: Echo outputs
        run: |
          echo "${{ toJSON(steps.push.outputs) }}"