build-image.yaml

name: Build

on:
  push:
    branches:
      - 'main'
  release:
    types:
      - created
    # `created` specifies a release that is NOT specified as a prerelease
    # `published` would include prereleases
  workflow_dispatch:

jobs:
  docker-build:
    name: Build Docker image and and push to GHCR
    runs-on: ubuntu-20.04
    steps:
      - name: ⚙️🐳 Set up QEMU
        uses: docker/setup-qemu-action@v1

      - name: ⚙️🐳 Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      - name: ℹ️🐳 Set metadata
        id: meta
        uses: docker/metadata-action@v3
        with:
          images: |
            ghcr.io/moveonorg/spoke
          tags: |
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=ref,event=branch
          # type=sha     Would tag the image with `sha-blahblahblah`
          # type=sha,prefix={{branch}}-     Would tag the image with `gitbranch-blahblah`
          flavor: |
            latest=true
          # Set to 'auto' if/when we want to stop tagging
          # the most recent image as `latest`


      - name: 🪵🐙 Login to GitHub Container Registry
        id: login-ghcr
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: 🔨🐳 Build ➡️ Push to registries
        id: docker_build
        uses: docker/build-push-action@v2
        with:
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      - name: 🖨 Display image digest
        run: echo ${{ steps.docker_build.outputs.digest }}