【清单文件】
[student@workstation ~]$ lab start playbook-inventory
[student@workstation ~]$ cd playbook-inventory/
[student@workstation playbook-inventory]$ ll
total 4
-rw-r--r--. 1 student student 43 Jul 12 19:08 ansible.cfg
[student@workstation playbook-inventory]$ cat inventory 
[webservers]
server[a:d].lab.example.com

[raleigh]
servera.lab.example.com
serverb.lab.example.com

[mountainview]
serverc.lab.example.com

[london]
serverd.lab.example.com

[development]
servera.lab.example.com

[testing]
serverb.lab/example.com

[production]
serverc.lab.example.com
serverd.lab.example.com

[us:children]
raleigh
mountainview
[student@workstation playbook-inventory]$ ansible-navigator inventory  -i inventory -m stdout --list （可以跟组名例：us）
（-i 指定当前目录下 -m 指定输出 --list 列出）
[student@workstation playbook-inventory]$ lab finish playbook-inventory 

【playbook】
{
---
- name: install and start apache httpd
   hosts: web
   tasks:
    - name: ensure httpd packages is present (安装httpd)
    ansible.builtin.dnf:
      name: httpd
      state: present （状态：present 让软件包存在
                  absent   让软件包不存在  latest 安装最新的）
    - name: correct index.html is present（将文件。。放到、、）
    ansible.builtin.copy: 
       src:files/index.html。。
       dest:/var/www/html/index.html、、
    - name: ensure httpd is started（启动服务）
    ansible.builtin.service:
       name:httpd
       state:started
       enabled: true

---
- name: enable intranet services
   hosts: servera.lab.example.com
   become: true
   tasks:
    - name: 
    ansible.builtin.dnf:
      name: 
         - httpd
         - firewalld
      state: latest
}

[student@workstation ~]$ lab start playbook-review
[student@workstation ~]$ cd playbook-review
[student@workstation playbook-review]$ vim internet.yml
写清单文件
[student@workstation playbook-review]$ ansible-navigator run -m stdout internet.yml --syntax-check
playbook: /home/student/playbook-review/internet.yml
[student@workstation playbook-review]$ ansible-navigator run -m stdout internet.yml 

PLAY [enable internet web service] *********************************************

TASK [Gathering Facts] *********************************************************
ok: [serverb.lab.example.com]