mirror-docker-image.yml

name: Mirror docker image

on:
  workflow_dispatch:
    inputs:
      source-image:
        description: 'Source of the image on ghcr.io'
        required: true
      target-image:
        description: 'Target of the image hosted on docker hub'
        required: true
      free-space-before:
        description: 'Free space on the runner before pulling and pushing docker image'
        required: false
        default: 'true'

jobs:

  copy-to-docker-hub-alpha:
    if: github.ref_name == 'alpha'
    runs-on: ubuntu-latest
    environment:
      name: alpha
    steps:
      # Free disk space
      - name: Free Disk space
        if: github.event.inputs.free-space-before == 'true'
        shell: bash
        run: |
          sudo rm -rf /usr/local/lib/android  # will release about 10 GB if you don't need Android
          sudo rm -rf /usr/share/dotnet # will release about 20GB if you don't need .NET
      # Login to docker hub
      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
      # Copy ghrc.io image to Docker Hub
      - name: Pull image from GHCR
        run: docker pull "${{ github.event.inputs.source-image }}"
      - name: Tag image for Docker Hub
        run: docker tag "${{ github.event.inputs.source-image }}" "${{ github.event.inputs.target-image }}"
      - name: Push image to Docker Hub
        run: docker push "${{ github.event.inputs.target-image }}"

  copy-to-docker-hub-main:
    if: github.ref_name == 'main' || startsWith(github.ref_name, 'v')
    runs-on: ubuntu-latest
    environment:
      name: beta
    steps:
      # Free disk space
      - name: Free Disk space
        if: github.event.inputs.free-space-before == 'true'
        shell: bash
        run: |
          sudo rm -rf /usr/local/lib/android  # will release about 10 GB if you don't need Android
          sudo rm -rf /usr/share/dotnet # will release about 20GB if you don't need .NET
      # Login to docker hub
      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
      # Copy ghrc.io image to Docker Hub
      - name: Pull image from GHCR
        run: docker pull "${{ github.event.inputs.source-image }}"
      - name: Tag image for Docker Hub
        run: docker tag "${{ github.event.inputs.source-image }}" "${{ github.event.inputs.target-image }}"
      - name: Push image to Docker Hub
        run: docker push "${{ github.event.inputs.target-image }}"