nfs_cluster_list: "{% for server in groups['all']%} {% if hostvars[server]['ansible_default_ipv4']['address'] is defined %} {{hostvars[server]['ansible_' + hostvars[server]['nfs_iface']|default('')].ipv4.address|default(hostvars[server]['ansible_default_ipv4']['address'],true)}}(rw,no_root_squash,crossmnt,async,insecure_locks,sec=sys) {% endif %} {%endfor%}"