Helm go sdk install chart from external location

Question

Im using the following code to install chart that is bounded in my source code (eg. in my app/chart/chart1 in my go bin app), Now I need to move the chart to git repository or to artifactory ,

My question is how can I install the chart from outside my program?

This is the code I use which works for bundled chart

I use the helm3 loader package which works when I have the chart bundled in my app

chart, err := loader.Load(“chart/chart1”)

https://pkg.go.dev/helm.sh/helm/v3@v3.5.4/pkg/chart/loader

Should I load it somehow with an http call or helm have some built in functionality? we need some efficient way to handle it

Answer 1

It seems that helm during its upgrade/install commands checks first a couple of different locations which you can see getting called here . The content of that function is here . And then continues here with loader.Load

Answer 2

You can use something like this for installing nginx chart

    myChart, err := loader.Load("https://charts.bitnami.com/bitnami/nginx-8.8.4.tgz")
...
    install := action.NewInstall(m.actionConfig)
    install.ReleaseName = "my-release"
...
    myRelease, err := install.Run(myChart, myValues)

It would be similar to:

helm install my-release https://charts.bitnami.com/bitnami/nginx-8.8.4.tgz

Answer 3

loader.load checks only for files and directories. If you want to use URL helm sdk provides LocateChart method in Install interface. Here is an example:

settings := cli.New()
actionConfig := new(action.Configuration)
if err := actionConfig.Init(settings.RESTClientGetter(), settings.Namespace(), os.Getenv("HELM_DRIVER"), log.Printf); err != nil {
        log.Printf("%+v", err)
        os.Exit(1)
        }

client := action.NewInstall(actionConfig)

chrt_path, err := client.LocateChart("https://github.com/kubernetes/ingress-nginx/releases/download/helm-chart-4.0.6/ingress-nginx-4.0.6.tgz", settings); if err != nil {
        panic(err)
}

myChart, err := loader.Load(chrt_path); if err != nil {
        panic(err)
}

Then you can simple setup install options and call client.Run method.