build-docker.yml

name: 'Build Docker Image'

# Only run this when on the master branch and changes are made to the Dockerfile, src, package.json, package-lock.json, tsconfig.json, or .github/workflows/build-docker.yml
on:
  push:
    branches:
      - master
    paths:
      - 'Dockerfile'
      - 'src/**'
      - 'package.json'
      - 'package-lock.json'
      - 'tsconfig.json'
      - '.github/workflows/build-docker.yml'

  # Allows you to run this workflow manually from the Actions tab. We can override the branch, image name, and docker registry.
  workflow_dispatch:
    inputs:
      branch:
        description: 'Branch'
        required: true
        default: 'master'
      image:
        description: 'Image Name'
        required: true
        default: 'mfdlabs/rbx-proxy'
      registry:
        description: 'Docker Registry'
        required: true
        default: 'docker.io'

jobs:
  build:
    if: "!contains(github.event.head_commit.message, '[SKIP IMAGE]')"
    runs-on: ubuntu-latest

    # If DOCKER_REGISTRY is not set, default to docker.io
    env:
      DOCKER_REGISTRY: ${{ github.event.inputs.registry || secrets.DOCKER_REGISTRY || 'docker.io' }}
      IMAGE_NAME: ${{ github.event.inputs.image || secrets.IMAGE_NAME || 'mfdlabs/rbx-proxy' }}
      DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
      DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}

    # Pushes 2 identical images to the registry, one with the tag latest and one with the version in package.json
    steps:
      - uses: actions/checkout@v2
        with:
          ref: ${{ github.event.inputs.branch || github.ref }}

      - uses: actions/setup-node@v2
        with:
          node-version: '17.x'

      # Error if IMAGE_NAME is not set
      - name: Check IMAGE_NAME
        run: |
          if [ -z "$IMAGE_NAME" ]; then
            echo "IMAGE_NAME is not set"
            exit 1
          fi

      # Error if DOCKER_USERNAME is not set
      - name: Check DOCKER_USERNAME
        run: |
          if [ -z "$DOCKER_USERNAME" ]; then
            echo "DOCKER_USERNAME is not set"
            exit 1
          fi

      # Error if DOCKER_PASSWORD is not set
      - name: Check DOCKER_PASSWORD
        run: |
          if [ -z "$DOCKER_PASSWORD" ]; then
            echo "DOCKER_PASSWORD is not set"
            exit 1
          fi

      # Run updateVersion.js to update the version in package.json
      - name: Update version
        run: node updateVersion.js

      # Step to get the version from package.json
      - name: Get version
        id: get_version
        run: echo ::set-output name=version::$(node -p "require('./package.json').version")

      # Build the image
      - name: Build image
        run: docker build -t ${{ env.IMAGE_NAME }}:${{ steps.get_version.outputs.version }} -t ${{ env.IMAGE_NAME }}:latest .

      # Login to the registry
      - name: Login to registry
        run: echo ${{ secrets.DOCKER_PASSWORD }} | docker login ${{ env.DOCKER_REGISTRY }} -u ${{ secrets.DOCKER_USERNAME }} --password-stdin

      # Push the image to the registry
      - name: Push image
        run: docker push ${{ env.IMAGE_NAME }}:${{ steps.get_version.outputs.version }} && docker push ${{ env.IMAGE_NAME }}:latest