Fix User-Agent header in requests made by Helm

Signed-off-by: Jakub Warczarek <jakub.warczarek@gmail.com>

pkg/cli/environment.go

@@ -33,6 +33,7 @@ import (
 	"k8s.io/cli-runtime/pkg/genericclioptions"
 	"k8s.io/client-go/rest"
 
+	"helm.sh/helm/v3/internal/version"
 	"helm.sh/helm/v3/pkg/helmpath"
 )
 
@@ -230,5 +231,9 @@ func (s *EnvSettings) SetNamespace(namespace string) {
 
 // RESTClientGetter gets the kubeconfig from EnvSettings
 func (s *EnvSettings) RESTClientGetter() genericclioptions.RESTClientGetter {
+	s.config.WrapConfigFn = func(c *rest.Config) *rest.Config {
+		c.UserAgent = version.GetUserAgent()
+		return c
+	}
 	return s.config
 }

pkg/downloader/chart_downloader.go

@@ -186,9 +186,9 @@ func (c *ChartDownloader) getOciURI(ref, version string, u *url.URL) (*url.URL,
 //
 //   - For fully qualified URLs, the version will be ignored (since URLs aren't versioned)
 //   - For a chart reference
-//		* If version is non-empty, this will return the URL for that version
-//		* If version is empty, this will return the URL for the latest version
-//		* If no version can be found, an error is returned
+//   - If version is non-empty, this will return the URL for that version
+//   - If version is empty, this will return the URL for the latest version
+//   - If no version can be found, an error is returned
 func (c *ChartDownloader) ResolveChartVersion(ref, version string) (*url.URL, error) {
 	u, err := url.Parse(ref)
 	if err != nil {

pkg/repo/chartrepo.go

@@ -120,7 +120,6 @@ func (r *ChartRepository) DownloadIndexFile() (string, error) {
 		return "", err
 	}
 
-	// TODO add user-agent
 	resp, err := r.Client.Get(indexURL,
 		getter.WithURL(r.Config.URL),
 		getter.WithInsecureSkipVerifyTLS(r.Config.InsecureSkipTLSverify),