This GitHub Action generates manifests for Helm charts and then combines them in kustomize overlays.

This action is insanely opinionated about how I run my repository. It may not support your use case, but please feel free to fork and modify it to suit your needs.

This action expects a folder structure of ./<source_folder>/<app_name>/overlays/<cluster_identifier> where <source_folder> is the input provided to the action.

• <source_folder> can be thought of environment names like dev, staging, and production. Or as other clear seperations of concerns. The action will generate manifests for each environment and commit them to the destination branch.

• <app_name> is the name of the application. This is used by argocd to identify the application when used with an applicationset.

• <cluster_identifier> is the name of the cluster. This is used by argocd to identify the cluster when used with an applicationset.

dev
  myapp
    base
      Chart.yaml
      kustomization.yaml
      values.yaml
    overlays
      cluster1`
        kustomization.yaml
        my-patch.yaml
        values.yaml
      cluster2`
        kustomization.yaml
        values.yaml
staging
  myapp
    base
      Chart.yaml
      kustomization.yaml
      values.yaml
    overlays
      cluster1
        kustomization.yaml
        values.yaml
      cluster2
        kustomization.yaml
        values.yaml

The folder containing the Helm charts and kustomize overlays. This input is required. The default value is dev.

The branch to commit the changes to. This input is not required. The default value is the current branch of the head commit.

The version of Helm to use. This input is not required. The default value is v3.14.4.

- uses: jamesatintegratnio/Kustomized-Helm-Action@main
  with:
    source_folder: 'your-folder'
    destination_branch: 'your-branch'
    helm_version: 'your-helm-version'

1. Configures git user name and email to github-actions[bot] and github-actions[bot]@users.noreply.github.com respectively.

2. Sets up Helm using the azure/[email protected] action with the version specified in the helm_version input.

3. Gets directories for processing. It finds directories that match the pattern ./<source_folder>/*/overlays/* and stores them in the dirs environment variable.

4. Adds Helm repositories dynamically (details not provided in the excerpt).

James D.