docker-image-publish.yml

# 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.

# GitHub recommends pinning actions to a commit SHA.
# To get a newer version, you will need to update the SHA.
# You can also reference a tag or branch, but the action may change without warning.

name: Create and publish a Docker image

on:
  push:
    branches: ['main']
  workflow_dispatch:

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

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

      - name: Log in to the Container registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      - name: Create DWN Server docker image tag names
        id: create_docker_image_tag_names
        run: |
          # extract the DWN Server version from the package.json
          dwn_server_version=$(jq -r '.version' package.json)

          # extract the DWN SDK version from the package.json
          dwn_sdk_version=$(jq -r '.dependencies."@tbd54566975/dwn-sdk-js"' package.json)

          # construct a image tag names using DWN server & DWN SDK versions
          # (e.g. ghcr.io/tbd54566975/dwn-server:0.4.3)
          # (e.g. ghcr.io/tbd54566975/dwn-server:dwn-sdk-0.4.4)
          dwn_server_version_tag_name=${{ env.REGISTRY }}/${IMAGE_NAME,,}:$dwn_server_version
          dwn_sdk_version_tag_name=${{ env.REGISTRY }}/${IMAGE_NAME,,}:dwn-sdk-$dwn_sdk_version

          # write the image tag names to the step output for use later/below
          echo "dwn_server_version_tag_name=$dwn_server_version_tag_name" >> $GITHUB_OUTPUT
          echo "dwn_sdk_version_tag_name=$dwn_sdk_version_tag_name" >> $GITHUB_OUTPUT
        env:
          IMAGE_NAME: ${{ env.IMAGE_NAME }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: Dockerfile
          push: true
          tags: |
            ${{ steps.meta.outputs.tags }}
            ${{ steps.create_docker_image_tag_names.outputs.dwn_server_version_tag_name }}
            ${{ steps.create_docker_image_tag_names.outputs.dwn_sdk_version_tag_name }}
          labels: ${{ steps.meta.outputs.labels }}