publish-to-dockerhub.yml

name: Publish to Docker Hub

on:
  release:
    types: [published]

jobs:
  publish:
    runs-on: ubuntu-22.04
    steps:
    - uses: actions/checkout@v4
    - name: Set up QEMU
      uses: docker/setup-qemu-action@v3
    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3
    - name: Cache Docker layers
      uses: actions/cache@v4
      with:
        path: /tmp/.buildx-cache
        key: ${{ runner.os }}-build-x-${{ github.sha }}
        restore-keys: |
          ${{ runner.os }}-build-x-
    - name: Login to DockerHub
      uses: docker/login-action@v3.3.0
      with:
        username: ${{ secrets.DOCKERHUB_USERNAME }}
        password: ${{ secrets.DOCKERHUB_TOKEN }}
    - name: Build and push
      id: docker_build
      uses: docker/build-push-action@v6.7.0
      with:
        platforms: linux/amd64,linux/arm64
        push: true
        tags: |
          oittaa/gcp-storage-emulator:latest
          oittaa/gcp-storage-emulator:${{ github.event.release.tag_name }}
        cache-from: type=local,src=/tmp/.buildx-cache
        cache-to: type=local,dest=/tmp/.buildx-cache
    - name: Image digest
      run: echo ${{ steps.docker_build.outputs.digest }}