On the instance you have previously chosen as master, we will run master initialization. Again, as the root, run the following command, and you should see the following output:
$ kubeadm init[init] using Kubernetes version: v1.11.3[preflight] running pre-flight checksI1015 02:49:42.378355 5250 kernel_validator.go:81] Validating kernel versionI1015 02:49:42.378609 5250 kernel_validator.go:96] Validating kernel config[preflight/images] Pulling images required for setting up a Kubernetes cluster[preflight/images] This might take a minute or two, depending on the speed of your internet connection[preflight/images] You can also perform this action in beforehand using 'kubeadm config images pull'[kubelet] Writing kubelet environment ...
