feat(init): add init logic

+ -i flag to override tiller image

cmd/helm/init.go

@@ -4,10 +4,15 @@ import (
 	"errors"
 	"fmt"
 
+	"github.com/deis/tiller/pkg/client"
+	"github.com/deis/tiller/pkg/kubectl"
 	"github.com/spf13/cobra"
 )
 
+var tillerImg string
+
 func init() {
+	initCmd.Flags().StringVarP(&tillerImg, "tiller-image", "i", "", "override tiller image")
 	RootCommand.AddCommand(initCmd)
 }
 
@@ -20,6 +25,28 @@ var initCmd = &cobra.Command{
 
 // RunInit initializes local config and installs tiller to Kubernetes Cluster
 func RunInit(cmd *cobra.Command, args []string) error {
-	fmt.Fprintln(stdout, "Init was called.")
-	return errors.New("NotImplemented")
+	if len(args) != 0 {
+		return errors.New("This command does not accept arguments. \n")
+	}
+
+	// TODO: take value of global flag kubectl and pass that in
+	runner := buildKubectlRunner("")
+
+	i := client.NewInstaller()
+	i.Tiller["Image"] = tillerImg
+
+	out, err := i.Install(runner)
+	if err != nil {
+		return fmt.Errorf("error installing %s %s", string(out), err)
+	}
+
+	fmt.Printf("Tiller (the helm server side component) has been installed into your Kubernetes Cluster.\n")
+	return nil
+}
+
+func buildKubectlRunner(kubectlPath string) kubectl.Runner {
+	if kubectlPath != "" {
+		kubectl.Path = kubectlPath
+	}
+	return &kubectl.RealRunner{}
 }

cmd/helm/init_test.go

@@ -4,11 +4,7 @@ import (
 	"testing"
 )
 
-func TestRunInit(t *testing.T) {
-
-	//TODO: call command and make sure no error is recevied
-	err := RunInit(initCmd, nil)
-	if err != nil {
-		t.Errorf("Expected no error but got one: %s", err)
-	}
+func TestInit(t *testing.T) {
+	//TODO: call command and make sure no error is returned
+	//TODO: check local config
 }