Create dashboard:
kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v1.10.1/src/deploy/recommended/kubernetes-dashboard.yaml
Create sample user (if using RBAC - on by default on new installs with kops / kubeadm):
kubectl create -f sample-user.yaml
kubectl -n kube-system create token admin-user
kubectl -n kube-system get secret | grep admin-user
kubectl -n kube-system describe secret admin-user-token-<id displayed by previous command>
Login: admin Password: the password that is listed in ~/.kube/config (open file in editor and look for "password: ..."
Choose for login token and enter the login token from the previous step