name: Build and Publish Docker Image

on:

  push:

    # Publish when tags are pushed

    tags:

      - '*'

env:

  REGISTRY: ghcr.io

  # github.repository as <account>/<repo>

  IMAGE_NAME: ${{ github.repository }}

jobs:

  build-and-push-image:

    runs-on: ubuntu-latest

    permissions:

      contents: read

      packages: write

    steps:

      - name: Checkout repository

        uses: actions/checkout@v3

      # Login to GitHub Container Registry

      - name: Log in to the Container registry

        uses: docker/login-action@v2

        with:

          registry: ${{ env.REGISTRY }}

          username: ${{ github.actor }}

          password: ${{ secrets.GITHUB_TOKEN }}

      # Extract metadata for Docker

      - name: Extract Docker metadata

        id: meta

        uses: docker/metadata-action@v4

        with:

          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

          tags: |

            type=ref,event=tag

            type=semver,pattern={{version}}

            type=semver,pattern={{major}}.{{minor}}

            type=semver,pattern={{major}}

      # Build and push Docker image

      - name: Build and push Docker image

        uses: docker/build-push-action@v4

        with:

          context: .

          push: true

          tags: ${{ steps.meta.outputs.tags }}

          labels: ${{ steps.meta.outputs.labels }}