build-and-publish.yml

name: Build and publish on GHCR

on:
  workflow_dispatch:
  push:
    tags:
      - 'v*.*.*'

permissions: 
  packages: write

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v3
      - name: Login to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Docker meta
        id: image_metadata
        uses: docker/metadata-action@v5
        with:
          images: ghcr.io/${{ github.repository }}
          tags: |
            type=semver,pattern={{version}}
            type=sha
      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          platforms: linux/amd64,linux/arm/v7,linux/arm64,linux/arm/v8
          tags: ${{ steps.image_metadata.outputs.tags }}
          labels: ${{ steps.image_metadata.outputs.labels }}