0基础Linux从入门到精通

# vim hosts.j2
*
*
{% for host in groups['all'] %}
{{ hostvars[host]['ansible_facts']['default_ipv4']['address'] }} {{ hostvars[host]['ansible_facts']['fqdn'] }} 
{{ hostvars[host]['ansible_facts']['hostname'] }}
{% endfor %}
# vim hosts.yml
---
- name: create myhosts
 hosts: all
 tasks:
 - name: template a file /etc/myhosts
 template:
 src: /home/greg/ansible/hosts.j2
 dest: /etc/myhosts
 #when: '"dev" in group_names'
 when: 'inventory_hostname in groups.dev'
# ansible-playbook hosts.yml