okd/playbooks/openstack/openshift-cluster/cluster_hosts.yml

---
g_all_hosts:     "{{ groups['tag_clusterid_' ~ cluster_id] | default([])
                    | intersect(groups['tag_environment_' ~ cluster_env] | default([])) }}"

g_etcd_hosts:    "{{ g_all_hosts | intersect(groups['tag_host-type_etcd'] | default([])) }}"

g_lb_hosts:      "{{ g_all_hosts | intersect(groups['tag_host-type_lb'] | default([])) }}"

g_nfs_hosts:     "{{ g_all_hosts | intersect(groups['tag_host-type_nfs'] | default([])) }}"

g_master_hosts:  "{{ g_all_hosts | intersect(groups['tag_host-type_master'] | default([])) }}"

g_new_master_hosts: "{{ g_all_hosts | intersect(groups['tag_host-type_new_master'] | default([])) }}"

g_node_hosts:    "{{ g_all_hosts | intersect(groups['tag_host-type_node'] | default([])) }}"

g_new_node_hosts: "{{ g_all_hosts | intersect(groups['tag_host-type_new_node'] | default([])) }}"

g_infra_hosts:   "{{ g_node_hosts | intersect(groups['tag_sub-host-type_infra'] | default([])) }}"

g_compute_hosts: "{{ g_node_hosts | intersect(groups['tag_sub-host-type_compute'] | default([])) }}"