docker-tag.yml

name: Docker Tag CI

on:
  workflow_dispatch:
    inputs:
      existing_tag:
        description: 'The existing tag of the docker image'
        required: true
        type: string
      new_tag:
        description: 'The new tag of the docker image'
        required: true
        type: string
      image_name:
        description: 'The name of the docker image to tag'
        required: true
        type: string
      tracker_hash:
        description: '[Internal usage] Used for tracking workflow job status within Meta infra'
        required: false
        type: str


env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ghcr.io/${{ github.repository }}/${{ github.event.inputs.image_name }}

jobs:

  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
    - name: Print Tracker Hash
      run: echo ${{ github.event.inputs.tracker_hash}}

    - uses: docker/login-action@v1
      with:
         registry: ${{ env.REGISTRY }}
         username: ${{ github.actor }}
         password: ${{ secrets.GITHUB_TOKEN }}

    - name: Pull image from rc registry
      run: docker pull ${{ env.IMAGE_NAME }}:${{ github.event.inputs.existing_tag }}

    - name: Tag docker image
      run: docker tag ${{ env.IMAGE_NAME }}:${{ github.event.inputs.existing_tag }} ${{ env.IMAGE_NAME }}:${{ github.event.inputs.new_tag }}

    - name: Push docker image to prod registry
      run: docker push --all-tags ${{ env.IMAGE_NAME }}