publish.yml

name: "Automated release"

on:
  push:
    tags:
      - "v*"

jobs:
  publish-docker:
    name: "Build and publish Docker image on ghcr.io"
    runs-on: ubuntu-latest
    steps:
      - name: "⬇️ Checkout repository"
        uses: actions/checkout@v2

      - name: "❓ Find the release semantic version"
        id: semver
        uses: Steffo99/actions-semver@v0.3.4
        with:
          string: ${{ github.ref_name }}

      - name: "🔨 Setup Buildx"
        uses: docker/setup-buildx-action@v2

      - name: "🔑 Login to GitHub Containers"
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: "🔽 Find the lowercase name of the repository"
        id: reponame
        uses: ASzc/change-string-case-action@v2
        with:
          string: ${{ github.repository }}

      - name: "🏗 Build and push the Docker image"
        uses: docker/build-push-action@v3
        with:
          target: "entrypoint"
          tags: >-
            ghcr.io/${{ steps.reponame.outputs.lowercase }}:${{ steps.semver.outputs.precedence }},
            ghcr.io/${{ steps.reponame.outputs.lowercase }}:${{ steps.semver.outputs.core }},
            ghcr.io/${{ steps.reponame.outputs.lowercase }}:${{ steps.semver.outputs.pair }},
            ghcr.io/${{ steps.reponame.outputs.lowercase }}:${{ steps.semver.outputs.major }},
            ghcr.io/${{ steps.reponame.outputs.lowercase }}:latest
          push: true