dockerpublish.yml

name: Docker Publish

# 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:
  workflow_dispatch:
  release:
    types: [published]

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

jobs:
  build:
    name: 'Docker Publish'
    runs-on: ubuntu-latest
    environment: Dev
    permissions:
      contents: read
      packages: write
      # This is used to complete the identity challenge
      # with sigstore/fulcio when running outside of PRs.
      id-token: write

    steps:
      # Checkout the release tag version
      - name: Checkout repository ${{ env.RELEASE_TAG }}
        uses: actions/checkout@v3
        with:
          ref: ${{ env.RELEASE_TAG }}

      # Get git commit hash
      - name: Get short hash
        run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_ENV

      # Need to lower case the image name for the docker tags when publishing
      - name: Downcase IMAGE_NAME variable
        run:  echo "IMAGE_NAME_LOWER=${IMAGE_NAME,,}" >> $GITHUB_ENV
      
      # Sort out the image tags 
      - name: Set initial tag
        run: echo "IMAGE_TAGS=${{ env.REGISTRY }}/${{ env.IMAGE_NAME_LOWER }}:latest" >> $GITHUB_ENV

      #debug
      - name: Log the tags
        run: echo "Calculated tags value => ${{ env.IMAGE_TAGS }}"

      # Workaround: https://github.com/docker/build-push-action/issues/461
      - name: Setup Docker buildx
        uses: docker/setup-buildx-action@79abd3f86f79a9d68a23c75a09a9a85889262adf

      # Login against a Docker registry except on PR
      # https://github.com/docker/login-action
      - name: Log into registry ${{ env.REGISTRY }}
        if: github.event_name != 'pull_request'
        uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      # Extract metadata (tags, labels) for Docker
      # https://github.com/docker/metadata-action
      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      - name: Fetch Plugin
        id: downloadfile  # Remember to give an ID if you need the output
        run: |
          mkdir latest-cost-plugin
          cd /home/runner/work/Grafana.Plugin.CostManagement/Grafana.Plugin.CostManagement/latest-cost-plugin
          wget "https://github.com/${{ github.repository }}/releases/download/main/dfe-azurecostbackend-datasource-1.0.7.zip"
          wget "https://grafana.com/api/plugins/blackcowmoo-googleanalytics-datasource/versions/0.2.3/download"
          
      - name: Unzip Plugin
        run: |
          cd /home/runner/work/Grafana.Plugin.CostManagement/Grafana.Plugin.CostManagement/latest-cost-plugin
          unzip -o dfe-azurecostbackend-datasource-1.0.7.zip
          unzip -o blackcowmoo-googleanalytics-datasource-0.2.3.zip
          cd /home/runner/work/Grafana.Plugin.CostManagement/Grafana.Plugin.CostManagement/latest-cost-plugin/dfe-azurecostbackend-datasource
          pwd
          ls
          cd /home/runner/work/Grafana.Plugin.CostManagement/Grafana.Plugin.CostManagement
        

      # 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: .
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ env.IMAGE_TAGS }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            VCSREF=${{ env.sha_short }}
            VCSTAG=${{ env.RELEASE_TAG }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

      # Sign the resulting Docker image digest except on PRs.
      # This will only write to the public Rekor transparency log when the Docker
      # repository is public to avoid leaking data.  If you would like to publish
      # transparency data even for private images, pass --force to cosign below.
      # https://github.com/sigstore/cosign
      - name: Install Cosign
        uses: sigstore/cosign-installer@main
        with:
          cosign-release: 'v1.13.1'
      - name: Check install!
        run: cosign version
      - name: Sign the published Docker image
        if: ${{ github.event_name != 'pull_request' }}
        env:
          COSIGN_EXPERIMENTAL: "true"
        # This step uses the identity token to provision an ephemeral certificate
        # against the sigstore community Fulcio instance.
        run: echo "${{ steps.meta.outputs.tags }}" | xargs -I {} cosign sign {}@${{ steps.build-and-push.outputs.digest }}