demo-helm-chart

This repository contains a helm chart example using a custom demo-library chart.

More about the library chart in my other repo

Update helm dependencies

official docs

This command will update and download your custom helm library charts and other dependencies.

In this case, it will download my demo-library chart from my OCI public repo.

Look at this dependency: Chart.yaml#30

helm dependency update .

Feel free to render this chart locally to see what happened and how ConfigMap rendered from the library chart:

helm template .

example:

$ helm template test-release .
---
# Source: demo-chart/templates/configmap.yaml
apiVersion: v1
data:
  myvalue: Hello World
kind: ConfigMap
metadata:
  labels: demo-chart-test-release
  name: demo-chart-test-release

Package helm chart

If you are creating your charts using a library charts, you need to push your charts to an OCI registry as well.

This part is similar to a library chart instructions and uses similar auth in your OCI repo.

So at the first you need update helm dependencies

Then just package it:

helm package .

example:

$ helm package .
Successfully packaged chart and saved it to: /path/to/demo-chart-0.1.1.tgz

Push chart to oci repo

helm push demo-chart-0.1.1.tgz oci://quay.io/$QUAY_USERNAME/test-helm

example:

$ helm push demo-chart-0.1.1.tgz oci://quay.io/$QUAY_USERNAME/test-helm
Pushed: quay.io/greengrunt/test-helm/demo-chart:0.1.1
Digest: sha256:31627af4fbe50626f7759ba00eaf1ffbb509433881d711598c847b5c390b28c6

Additional info

If you are creating a CI/CD pipeline or doing manual builds, don't forget to delete archives, lock file and charts/ after a successful push in the registry.