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chart-releaser Action

A GitHub action to turn a GitHub project into a self-hosted Helm chart repo, using helm/chart-releaser CLI tool.

Usage

Pre-requisites

  1. A GitHub repo containing a directory with your Helm charts (default is a folder named /charts, if you want to maintain your charts in a different directory, you must include a charts_dir input in the workflow).
  2. A GitHub branch called gh-pages to store the published charts.
  3. In your repo, go to Settings/Pages. Change the Source Branch to gh-pages.
  4. Create a workflow .yml file in your .github/workflows directory. An example workflow is available below. For more information, reference the GitHub Help Documentation for Creating a workflow file

Inputs

Outputs

Environment variables

For more information on environment variables, see the documentation.

Example Workflow

Create a workflow (eg: .github/workflows/release.yml):

name: Release Charts

on:
  push:
    branches:
      - main

jobs:
  release:
    # depending on default permission settings for your org (contents being read-only or read-write for workloads), you will have to add permissions
    # see: https://docs.github.com/en/actions/security-guides/automatic-token-authentication#modifying-the-permissions-for-the-github_token
    permissions:
      contents: write
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - 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@v4
        env:
          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

      - name: Run chart-releaser
        uses: helm/chart-releaser-action@v1.6.0
        env:
          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

This uses @helm/chart-releaser-action to turn your GitHub project into a self-hosted Helm chart repo. It does this – during every push to main – by checking each chart in your project, and whenever there's a new chart version, creates a corresponding GitHub release named for the chart version, adds Helm chart artifacts to the release, and creates or updates an index.yaml file with metadata about those releases, which is then hosted on GitHub Pages. You do not need an index.yaml file in main at all because it is managed in the gh-pages branch.

Example using custom config

workflow.yml:

- name: Run chart-releaser
  uses: helm/chart-releaser-action@v1.6.0
  with:
    charts_dir: charts
    config: cr.yaml
  env:
    CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

cr.yaml:

owner: myaccount
git-base-url: https://api.github.com/

For options see config-file.

Code of conduct

Participation in the Helm community is governed by the Code of Conduct.