captain

Captain

Captain is a Helm 3 Controller

About Helm3

The Helm 3 Design Proposal has been exist for a while, and the helm developer group is focused on the core helm 3 development, this is the first implementation of Helm3 Controller based on the Proposal.

This project is based on the core helm code, which promised to be act as an library. Since it's not official released yet, we add some little medication to help create this controller. Of course this will be unnecessary in the future.

Features

• HelmRequest and Release CRD, namespace based
• ChartRepo CRD
• Multi cluster support based on https://github.com/kubernetes/cluster-registry
• Dependency check for HelmRequest (between HelmRequests)
• valuesFrom support, also use ConfigMap or Secret to store values
• kubectl apply like resource manipulation，no more resource conflict and CRD management issues

Quick Start

Check the Installation Guide to learn how to install captain

Then, create a HelmRequest resource

kind: HelmRequest
apiVersion: app.alauda.io/v1alpha1
metadata:
  name: nginx-ingress
spec:
  chart: stable/nginx-ingress

After a few seconds, you have a nginx-ingress chart running

root@VM-16-12-ubuntu:~/demo# kubectl get pods
NAME                                             READY   STATUS    RESTARTS   AGE
nginx-ingress-controller-57987f445c-9rhv5        1/1     Running   0          16s
nginx-ingress-default-backend-7679dbd5c9-wkkss   1/1     Running   0          16s
root@VM-16-12-ubuntu:~/demo# kubectl get hr
NAME            CHART                  VERSION   NAMESPACE   ALLCLUSTER   PHASE    AGE
nginx-ingress   stable/nginx-ingress             default                  Synced   23s

For the detailed explain and advanced usage, please check the documentation below

Documention

• How captain works
• HelmRequest CRD
• Release CRD
• ChartRepo CRD

Future Plans

• Release Version secret support
• Repo CRD
• Repo proxy support
• Data migration tool from Helm2 release to Helm3 Release

Related Project

• flux: flux have a similar controller based on Helm2