docker-tag.yml

name: Build Docker container on tag

on:
  push:
    tags:
      - v[0-9]+.[0-9]+.[0-9]+
      - v[0-9]+.[0-9]+.[0-9]+-*

jobs:
  build:
    name: Build image
    runs-on: ubuntu-20.04

    steps:
      - name: Checkout project
        uses: actions/checkout@v2

      - name: Set env variables
        run: |
          echo "TAG=${GITHUB_REF/refs\/tags\//}" >> $GITHUB_ENV
          REPO_OWNER=${{ github.repository_owner }}
          echo "IMAGE_NAME=${REPO_OWNER,,}/${GITHUB_REPOSITORY#*/}" >> $GITHUB_ENV

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

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

      - name: Setup Docker buildx action
        uses: docker/setup-buildx-action@v1

      - name: Run Docker buildx
        run: |
                docker buildx build \
                --platform linux/amd64,linux/arm64 \
                --tag ghcr.io/$IMAGE_NAME:$TAG \
                --output "type=registry" ./