fix(helm): fix `helm get` subcommands

This correctly sets up the tunnel for `helm get values`, `helm get
manifest`, and `helm get hooks`.

Closes #2617

cmd/helm/get_hooks.go

@@ -47,6 +47,7 @@ func newGetHooksCmd(client helm.Interface, out io.Writer) *cobra.Command {
 		Use:     "hooks [flags] RELEASE_NAME",
 		Short:   "download all hooks for a named release",
 		Long:    getHooksHelp,
+		PreRunE: setupConnection,
 		RunE: func(cmd *cobra.Command, args []string) error {
 			if len(args) == 0 {
 				return errReleaseRequired

cmd/helm/get_manifest.go

@@ -49,6 +49,7 @@ func newGetManifestCmd(client helm.Interface, out io.Writer) *cobra.Command {
 		Use:     "manifest [flags] RELEASE_NAME",
 		Short:   "download the manifest for a named release",
 		Long:    getManifestHelp,
+		PreRunE: setupConnection,
 		RunE: func(cmd *cobra.Command, args []string) error {
 			if len(args) == 0 {
 				return errReleaseRequired

cmd/helm/get_values.go

@@ -47,6 +47,7 @@ func newGetValuesCmd(client helm.Interface, out io.Writer) *cobra.Command {
 		Use:     "values [flags] RELEASE_NAME",
 		Short:   "download the values file for a named release",
 		Long:    getValuesHelp,
+		PreRunE: setupConnection,
 		RunE: func(cmd *cobra.Command, args []string) error {
 			if len(args) == 0 {
 				return errReleaseRequired