Merge pull request #1742 from mattymo/facts_as_vars

roles/etcd/tasks/install_docker.yml

roles/etcd/tasks/install_rkt.yml

roles/etcd/templates/etcd.j2

...ntroller/calico/templates/calico-policy-controller.yml.j2

roles/kubernetes/master/templates/kubeadm-config.yaml.j2

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

roles/kubernetes/preinstall/tasks/set_facts.yml

roles/kubespray-defaults/defaults/main.yaml

roles/network_plugin/calico/rr/templates/calico-rr.env.j2

roles/network_plugin/calico/templates/calico-config.yml.j2

roles/network_plugin/calico/templates/calicoctl-container.j2

roles/network_plugin/calico/templates/cni-calico.conf.j2

roles/network_plugin/canal/templates/calicoctl-container.j2

roles/network_plugin/canal/templates/canal-config.yaml.j2

roles/network_plugin/canal/templates/cni-canal.conf.j2