docker-publish.yml

name: Push Docker Image

# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

on:
  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:
    inputs:
      docker_tag:
        description: 'Docker tag'
        required: true
        default: 'latest' 
        type: string


env:
  # Use docker.io for Docker Hub if empty
  REGISTRY: ghcr.io
  # github.repository as <account>/<repo>
  # IMAGE_NAME: ${{ github.repository }}


jobs:
  build-push:

    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3


      # https://github.com/docker/login-action
      - name: Log into registry ${{ env.REGISTRY }}
        uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}


      - id: imagename
        uses: ASzc/change-string-case-action@v2
        with:
          string: ${{ github.repository }}

      # Build and push Docker image with Buildx (don't push on PR)
      # https://github.com/docker/build-push-action
      - name: Build and push Docker image
        id: build-and-push
        uses: docker/build-push-action@ac9327eae2b366085ac7f6a2d02df8aa8ead720a
        with:
          context: ./image-updater/source-code
          file: ./image-updater/source-code/Dockerfile
          push: true
          tags: ghcr.io/${{ steps.imagename.outputs.lowercase }}:${{ inputs.docker_tag }}