Merge pull request #2019 from chadswen/disable-api-insecure-port

inventory/group_vars/k8s-cluster.yml

roles/kubernetes-apps/ansible/tasks/main.yml

roles/kubernetes-apps/cluster_roles/tasks/main.yml

roles/kubernetes/master/handlers/main.yml

roles/kubernetes/master/tasks/kubeadm-migrate-certs.yml

...tes/master/templates/manifests/kube-apiserver.manifest.j2

roles/kubernetes/preinstall/tasks/verify-settings.yml

roles/kubespray-defaults/defaults/main.yaml