$ cubectl update-kubeconfig -p <ssh key> -u <username>$ cubectl update-kubeconfig -p ~/.ssh/id_rsa -u cocktail
$ cat config/default/acloud-client-kubeconfig
$ cubectl update-kubeconfig -p ~/.ssh/id_rsa -u cocktail -c cluster-1
$ cat config/cluster-1/acloud-client-kubeconfig