helm_release.yaml

name: K8ssandra Operator Helm Release

on:
  workflow_call:
    inputs:
      helm_repo:
        description: 'Helm repository to use'
        default: 'next'
        required: false
        type: string
      prerelease:
        description: 'Whether we are publishing a pre-release'
        default: 'true'
        required: false
        type: string
    secrets:
      GCP_PROJECT_ID:
        required: true
      GCP_SA_KEY:
        required: true
      GCP_HELM_BUCKET_NAME:
        required: true

jobs:
  helm-release:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4
      
      - name: Update PATH
        run: |
          echo "$GITHUB_WORKSPACE/bin" >> $GITHUB_PATH

      - name: Update chart dependencies
        run: |
          scripts/update-helm-deps.sh

      - name: Compute release chart version
        id: compute_next_version
        run: |
          DATE_TIME=$(date '+%Y%m%d%H%M%S')
          RELEASE_VERSION=$(echo $(yq e '.version' charts/k8ssandra-operator/Chart.yaml) | sed "s/-.*/-${DATE_TIME}-${GITHUB_SHA::8}/")
          echo "Release version is: $RELEASE_VERSION"
          echo "RELEASE_VERSION=${RELEASE_VERSION}" >> $GITHUB_ENV
          echo "RELEASE_VERSION=${RELEASE_VERSION}" >> $GITHUB_OUTPUT

      - name: Update Helm chart version
        run: |
          yq eval ".version |= \"${RELEASE_VERSION}\"" charts/k8ssandra-operator/Chart.yaml -i
          yq eval ".appVersion |= \"${RELEASE_VERSION}\"" charts/k8ssandra-operator/Chart.yaml -i
          if [ "${{ inputs.prerelease }}" == "true" ]; then
            ## When publishing a prerelease from the main branch, we want to use the short SHA as the image tag
            yq eval ".image.tag |= \"${GITHUB_SHA::8}\"" charts/k8ssandra-operator/values.yaml -i
          else
            ## For a release, we want to use the git tag name as the image tag
            yq eval ".image.tag |= \"v${RELEASE_VERSION}\"" charts/k8ssandra-operator/values.yaml -i
          fi
          cat charts/k8ssandra-operator/Chart.yaml
      
      - name: Prepare Helm release
        run: |
          make prepare-helm-release

      - name: Create working directory and copy charts
        run: |
          mkdir -p build/$RELEASE_VERSION/k8ssandra-operator
          cp -rv charts/* build/$RELEASE_VERSION

      - name: Generate package archives
        run: |
          helm package k8ssandra-operator
        working-directory: build/${{ steps.compute_next_version.outputs.RELEASE_VERSION }}

      # Helm Release
      - id: 'auth'
        uses: 'google-github-actions/auth@v1'
        with:
          credentials_json: '${{ secrets.GCP_SA_KEY }}'

      - name: 'Set up Cloud SDK'
        uses: google-github-actions/setup-gcloud@v1
        with:
          project_id: ${{ secrets.GCP_PROJECT_ID }}

      - name: Download current index from Google Cloud
        env:
          GCP_HELM_BUCKET_NAME: ${{ secrets.GCP_HELM_BUCKET_NAME }}
        run: |
          echo "Downloading index.yaml from gs://$GCP_HELM_BUCKET_NAME/${{ inputs.helm_repo }}/index.yaml"
          gsutil cp gs://$GCP_HELM_BUCKET_NAME/${{ inputs.helm_repo }}/index.yaml ./
        working-directory: build/${{ steps.compute_next_version.outputs.RELEASE_VERSION }}

      - name: Regenerate Helm index
        env:
          GCP_HELM_BUCKET_NAME: ${{ secrets.GCP_HELM_BUCKET_NAME }}
        run: |
          echo "Generating Helm index for gs://$GCP_HELM_BUCKET_NAME/${{ inputs.helm_repo }}/index.yaml"
          helm repo index . --merge index.yaml --url "https://$GCP_HELM_BUCKET_NAME/${{ inputs.helm_repo }}/"
        working-directory: build/${{ steps.compute_next_version.outputs.RELEASE_VERSION }}

      - name: Upload packages and index
        env:
          GCP_HELM_BUCKET_NAME: ${{ secrets.GCP_HELM_BUCKET_NAME }}
        run: |
          gsutil cp ./*.tgz gs://$GCP_HELM_BUCKET_NAME/${{ inputs.helm_repo }}/
          gsutil cp ./index.yaml gs://$GCP_HELM_BUCKET_NAME/${{ inputs.helm_repo }}/
        working-directory: build/${{ steps.compute_next_version.outputs.RELEASE_VERSION }}