remove kubeconfig as part of cluster remove

cluster/remove.go

@@ -2,6 +2,7 @@ package cluster
 
 import (
 	"github.com/rancher/rke/hosts"
+	"github.com/rancher/rke/pki"
 	"github.com/rancher/rke/services"
 )
 
@@ -22,7 +23,11 @@ func (c *Cluster) ClusterRemove() error {
 	}
 
 	// Clean up all hosts
-	return cleanUpHosts(c.ControlPlaneHosts, c.WorkerHosts, c.EtcdHosts)
+	if err := cleanUpHosts(c.ControlPlaneHosts, c.WorkerHosts, c.EtcdHosts); err != nil {
+		return err
+	}
+
+	return pki.RemoveAdminConfig(c.LocalKubeConfigPath)
 }
 
 func cleanUpHosts(cpHosts, workerHosts, etcdHosts []hosts.Host) error {

pki/deploy.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"io/ioutil"
+	"os"
 	"time"
 
 	"github.com/docker/docker/api/types"
@@ -110,3 +111,12 @@ func DeployAdminConfig(kubeConfig, localConfigPath string) error {
 	}
 	return nil
 }
+
+func RemoveAdminConfig(localConfigPath string) error {
+	logrus.Infof("Removing local admin Kubeconfig: %s", localConfigPath)
+	if err := os.Remove(localConfigPath); err != nil {
+		return fmt.Errorf("Failed to remove local admin Kubeconfig file: %v", err)
+	}
+	logrus.Infof("Local admin Kubeconfig removed successfully")
+	return nil
+}