Captain

Captain is a Helm 3 Controller

About Helm3

The Helm 3 Design Proposal exists for a while and currently it is still under heavy development. Captain comes as the first implementation of Helm v3 Controller based on the Proposal.

This project is based on the core helm v3 code, acting as a library. Since it's not officially released yet (alpha stage for now), some modifications were made to help implement this controller on a fork: alauda/helm (will be deprecated once Helm's library is released).

Features

HelmRequest/ChartRepo/Release CRD, namespace based
Git/Svn as ChartRepo
Local ChartRepo based on ChartMuseum
Multi cluster support based on cluster-registry
Dependency check for HelmRequest (between HelmRequests)
valuesFrom support: support to ConfigMap or Secret value store
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 an 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

SDK

Golang: also contains the CRD definition

Future Plans

Java SDK
Auto update of HelmRequest
Always update to the latest version of chart

Captain Releated Projects

kubectl-captain: a kubectl plugin for captain
captain-test-charts: test charts for captain
oci-chartrepo: use oci registry as helm chart repo

Related Projects

flux: flux have a similar controller based on Helm2

DarkFrank/captain