push-to-registry.yaml

# Shamelessly stolen from https://binx.io/2022/07/08/a-ready-to-use-github-action-workflow-for-pushing-container-images-to-the-registry/

---
name: Build and publish the container image

on:
  push:
    branches:
      - master

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    steps:
      -
        name: Checkout repository
        uses: actions/checkout@v2
        with:
          fetch-depth: 0

      -
        name: Get tag
        id: repository
        run: echo "tag=$(git describe --tags HEAD)" > $GITHUB_ENV

      -
        name: Set up QEMU
        uses: docker/setup-qemu-action@v1

      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      -
        name: Log in to the Container registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      -
        name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          platforms: linux/amd64
          push: true
          tags: ghcr.io/${{ github.repository }}:latest