Merge pull request #829 from bogdando/opts

contrib/terraform/group_vars

contrib/terraform/openstack/group_vars/all.yml

docs/ansible.md

inventory/group_vars/all.yml

inventory/group_vars/calico-rr.yml

inventory/group_vars/etcd.yml

inventory/group_vars/k8s-cluster.yml

inventory/group_vars/kube-master.yml

roles/adduser/defaults/main.yml

roles/download/defaults/main.yml

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

roles/kubernetes/node/templates/nginx.conf.j2

roles/kubernetes/preinstall/defaults/main.yml

roles/kubernetes/preinstall/tasks/set_facts.yml

roles/kubernetes/secrets/defaults/main.yml

roles/network_plugin/calico/tasks/main.yml

roles/rkt/defaults/main.yml