Bump etcdadm and nodeadm version (#170)

Author: ojmhetar

common/constants.go

@@ -40,9 +40,9 @@ const (
 	KubectlFile                         = "/opt/bin/kubectl"
 	AdminKubeconfig                     = "/etc/kubernetes/admin.conf"
 	KubeletKubeconfig                   = "/etc/kubernetes/kubelet.conf"
-	DefaultNodeadmVersion               = "v0.1.0"
-	DefaultEtcdadmVersion               = "v0.1.0"
-	DefaultKubernetesVersion            = "1.11.7"
+	DefaultNodeadmVersion               = "v0.2.1"
+	DefaultEtcdadmVersion               = "v0.1.1"
+	DefaultKubernetesVersion            = "1.11.9"
 	DefaultCNIVersion                   = "v0.6.0"
 	DefaultFlannelVersion               = "v0.10.0"
 	DefaultKeepalivedVersion            = "v2.0.4"