Running internal kubectl command when minikube is called as 'kubectl'

Fixes issue #8857

Signed-off-by: Pablo Caderno <kaderno@gmail.com>

cmd/minikube/cmd/root.go

@@ -20,6 +20,7 @@ import (
 	goflag "flag"
 	"fmt"
 	"os"
+	"path/filepath"
 	"runtime"
 	"strings"
 
@@ -73,6 +74,10 @@ var RootCmd = &cobra.Command{
 // Execute adds all child commands to the root command sets flags appropriately.
 // This is called by main.main(). It only needs to happen once to the rootCmd.
 func Execute() {
+	_, callingCmd := filepath.Split(os.Args[0])
+	if callingCmd == "kubectl" {
+		os.Args = append([]string{"minikube", callingCmd}, os.Args[1:]...)
+	}
 	for _, c := range RootCmd.Commands() {
 		c.Short = translate.T(c.Short)
 		c.Long = translate.T(c.Long)

site/content/en/docs/faq/_index.md

@@ -29,3 +29,8 @@ minikube's bootstrapper, [Kubeadm](https://github.com/kubernetes/kubeadm) verifi
 Please allocate sufficient resources for Knative setup using minikube, especially when you run a minikube cluster on your local machine. We recommend allocating at least 6 CPUs and 8G memory.
 
 `minikube start --cpus 6 --memory 8000`
+
+## Do I need to install kubectl locally?
+
+No, minikube comes with built-in kubectl [see minikube's kubectl documentation]({{< ref "docs/handbook/kubectl.md"}}). 
+

site/content/en/docs/handbook/kubectl.md

@@ -17,6 +17,10 @@ as well.
 
 You can also `alias kubectl="minikube kubectl --"` for easier usage.
 
+Alternatively, you can create a symbolic link to minikube's binary named 'kubectl'.
+
+`ln -s $(which minikube) /usr/local/bin/kubectl`
+
 Get pods
 
 `minikube kubectl -- get pods`