Merge pull request #2324 from hswong3i/nginx_ingress

cluster.yml

inventory/sample/group_vars/k8s-cluster.yml

...ubernetes-apps/ingress_controller/ingress_nginx/README.md

...s-apps/ingress_controller/ingress_nginx/defaults/main.yml

...etes-apps/ingress_controller/ingress_nginx/tasks/main.yml

.../ingress_nginx/templates/ingress-nginx-clusterrole.yml.j2

...s_nginx/templates/ingress-nginx-clusterrolebinding.yml.j2

...ontroller/ingress_nginx/templates/ingress-nginx-cm.yml.j2

...ngress_nginx/templates/ingress-nginx-controller-ds.yml.j2

...s_nginx/templates/ingress-nginx-default-backend-rs.yml.j2

..._nginx/templates/ingress-nginx-default-backend-svc.yml.j2

...ontroller/ingress_nginx/templates/ingress-nginx-ns.yml.j2

...troller/ingress_nginx/templates/ingress-nginx-role.yml.j2

.../ingress_nginx/templates/ingress-nginx-rolebinding.yml.j2

...ontroller/ingress_nginx/templates/ingress-nginx-sa.yml.j2

...ess_nginx/templates/ingress-nginx-tcp-servicecs-cm.yml.j2

...ess_nginx/templates/ingress-nginx-udp-servicecs-cm.yml.j2

roles/kubernetes-apps/ingress_controller/meta/main.yml

roles/kubespray-defaults/defaults/main.yaml