hosts

[etcdservers]
etcd1 ansible_host=172.21.7.11 ansible_port=22

[kuber_master]
master ansible_host=172.21.7.11 ansible_port=22

[kuber_node]
proxy ansible_host=172.21.4.3 ansible_port=22
node1 ansible_host=172.21.7.11 ansible_port=22
node2 ansible_host=172.21.7.13 ansible_port=22

[kubernetes:children]
kuber_master
kuber_node

[kuber_and_etcd:children]
kubernetes
etcdservers

[registry]
registry0 ansible_host=172.21.7.11 ansible_port=22

[kube_master_and_registry:children]
kuber_master
registry

[kuber_node_and_registry:children]
kuber_node
registry

[kuber_and_etcd_and_registry:children]
kuber_and_etcd
registry

[ceph]
ceph0 ansible_host=172.21.7.13 ansible_port=22

[kuber_and_ceph:children]
kubernetes
ceph

[kuber_and_ceph_and_registry:children]
kuber_and_ceph
registry

[kuber_addition_node]
addon0 ansible_host=172.21.7.11 ansible_port=22