call-docker-build-worker.yaml

name: Build Worker

on:
  # we want pull requests so we can build(test) but not push to image registry
  push:
    branches:
      - 'main'
    # only build when important files change
    paths:
      - 'worker/**'
      - '.github/workflows/call-docker-build-worker.yaml'
  pull_request:
    branches:
      - 'main'
    # only build when important files change
    paths:
      - 'worker/**'
      - '.github/workflows/call-docker-build-worker.yaml'
  schedule:
    # re-run monthly to keep image fresh with upstream base images
    - cron: '0 12 15 * *'

jobs:
  call-docker-build:

    name: Call Docker Build

    uses: bretfisher/docker-build-workflow/.github/workflows/reusable-docker-build.yaml@main

    permissions:
      contents: read
      packages: write # needed to push docker image to ghcr.io
      pull-requests: write # needed to create and update comments in PRs
    
    secrets:

      # Only needed if with:dockerhub-enable is true below
      dockerhub-username: ${{ secrets.DOCKERHUB_USERNAME }}

      # Only needed if with:dockerhub-enable is true below
      dockerhub-token: ${{ secrets.DOCKERHUB_TOKEN }}

    with:
      
      ### REQUIRED
      ### ENABLE ONE OR BOTH REGISTRIES
      ### tell docker where to push.
      ### NOTE if Docker Hub is set to true, you must set secrets above and also add account/repo/tags below
      dockerhub-enable: true
      ghcr-enable: true

      ### REQUIRED 
      ### A list of the account/repo names for docker build. List should match what's enabled above
      ### defaults to:
      image-names: |
        bretfisher/examplevotingapp_worker
        ghcr.io/bretfisher/example-voting-app-worker

      ### REQUIRED set rules for tagging images, based on special action syntax:
      ### https://github.com/docker/metadata-action#tags-input
      ### defaults to:
      # tag-rules: |
      #   type=raw,value=latest,enable=${{ endsWith(github.ref, github.event.repository.default_branch) }}
      #   type=ref,event=pr
      #   type=ref,event=branch
      #   type=semver,pattern={{version}}
      #   type=raw,value=gha-${{ github.run_id }}
      
      ### path to where docker should copy files into image
      ### defaults to root of repository (.)
      context: "{{defaultContext}}:worker"
      
      ### Dockerfile alternate name. Default is Dockerfile (relative to context path)
      # file: Containerfile

      ### build stage to target, defaults to empty, which builds to last stage in Dockerfile
      # target:
      
      ### platforms to build for, defaults to linux/amd64
      ### other options: linux/amd64,linux/arm64,linux/arm/v7
      platforms: linux/amd64,linux/arm64,linux/arm/v7
      
      ### Create a PR comment with image tags and labels
      ### defaults to false
      # comment-enable: false