Publishing Helm Chart to private repository using GitHub Actions

update_chart.yml

(...)

jobs:
  package:
    name: Package Helm Chart
    runs-on: ubuntu-latest
    outputs:
      chart_filename: ${{ steps.chart_filename.outputs.chart_filename }}
    steps:
      - name: Checkout Repository
        uses: actions/checkout@v3

      - name: Configure Git
        run: |
          git config user.name "{{ github.actor }}"
          git config user.email "{{ github.actor }}@users.noreply.github.com"

      - name: Install Helm
        uses: azure/setup-helm@v2.0
        with:
          version: v3.5.2

      - name: Package Helm Charts
        run: helm package chart

      - id: chart_filename
        name: Output Chart Filename
        run: echo "::set-output name=chart_filename::$(ls *.tgz)"

      - name: Upload Helm Chart Package as Workflow Artifact
        uses: actions/upload-artifact@v2
        with:
          name: ${{ steps.chart_filename.outputs.chart_filename }}
          path: ${{ steps.chart_filename.outputs.chart_filename }}
          retention-days: 1
          if-no-files-found: error


  publish:
    name: Publish Helm Chart
    runs-on: ubuntu-latest
    needs:
      - package
    steps:
      - name: Checkout Chart Repository
        uses: actions/checkout@v3
        with:
          repository: ${{ secrets.CHARTS_REPOSITORY }} # myorg/myrepo
          token: ${{ secrets.PACKAGES_ACCESS_TOKEN }}

      - name: Configure Git
        run: |
          git config user.name "$GITHUB_ACTOR"
          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"

      - name: Install Helm
        uses: azure/setup-helm@v2.0
        with:
          version: v3.5.2

      - name: Retrieve Chart Package Workflow Artifact
        uses: actions/download-artifact@v2
        with:
          name: ${{ needs.package.outputs.chart_filename }}

      - name: Add chart to repository
        run: |
          helm repo index .
          git add .
          git commit -m "Add ${{ needs.package.outputs.chart_filename }}"
          git push