Helm Charts

This repo is for storing and publishing helm chart packages. Also, the configured workflow will make the uploaded chart packages are synced and indexed to the OCM chart repo.

Install

$ helm repo add ocm https://open-cluster-management.io/helm-charts
$ helm repo update
$ helm search repo ocm

Upload

Any file edition in the main branch folder will trigger the workflow chart-release.yml to flush all the chart packages in the charts/ folder to the gh-pages branch, which is the source of the ocm helm charts repository served by GitHub Pages.

1. Manual upload via pull request

After forking this repo, you can either push the chart package to your own forked repo via github web pages or git command-lines, and then open a pull request across the fork.

2. Automatic upload via github action

The manual workflow download-chart.yml can be invoked from your own repo via the following action step:

- name: submit charts to OCM chart repo
  uses: actions/github-script@v6
  with:
    github-token: ${{ secrets.OCM_BOT_PAT }}
    script: |
      try {
        const result = await github.rest.actions.createWorkflowDispatch({
          owner: 'open-cluster-management-io',
          repo: 'helm-charts',
          workflow_id: 'download-chart.yml',
          ref: 'main',
          inputs: {
            # repo is the target repo to download chart package
            repo: "${{ github.repository }}",
            # version is the target release version to download (without "v" prefix)
            version: "${{ env.TRIMED_RELEASE_VERSION }}",
            # chart-name is the name of the chart package, e.g. a chart-name "foo"
            # and version "1.1.1" will trigger the download action to download a
            # file named "foo-1.1.1.tgz" from the corresponding github release.
            "chart-name": "${{ env.CHART_NAME }}",
          },
        })
        console.log(result);
      } catch(error) {
        console.error(error);
        core.setFailed(error);
      }

Note that please also verify that the source code repo is publishing the chart package tarballs in the release assets. It's recommended to the use the following action to published charts:

- name: publish release
  uses: softprops/action-gh-release@v0.1.5
  env:
    GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
  with:
    files: |
      # Note: RELEASE_VERSION should not have "v" prefix.
      ${{ env.CHART_NAME }}-${{ env.RELEASE_VERSION }}.tgz

Workflow

Steps description

1. Code repo admin adds a new release tag and push, which triggers the release job flow including release docker image build and chart packaging.
2. At the end of the release job, the code repo should invoke the chart repo's "download-chart.yml" workflow to send a notification that a new release is out. Note that the released chart packaged should be listed in the github release asset files following the name convention of helm charts i.e. "-.tgz"
3. The chart repo downloads the chart package from code repo release assets and then commits to the "main" branch.
4. A post-commit job in the chart repo named "chart-release.yml" uploads the latest artifacts to the remote blob storage along with an index file.