ansibke playbook (剧本) yaml

ansible-playbook [options] playbook.yml [playbook2 ...] 
-C, --check   # 检查,白跑,干跑
-f FORKS, --forks=FORKS #用来做并发
--list-hosts # 列出主机列表
--syntax-check # 语法检查 

- hosts: web
  tasks:
  - name: creategroup
    group: name=jamlee1
  - name: cretaeuser
    user: name=jam1

- hosts: web
  tasks:
  - name: create{{ user }}
    user: name={{ user}}

ansible-playbook -e ‘user=jamlee1‘ p1.yml

vi /etc/ansible/hosts 

[db]
192.168.33.131 user=jam1
192.168.107.132 user=jam2

[db:vars] #表示组的参数
user=jam2

- hosts: db
  vars:
  - user: jam3
  tasks:
  - name: create{{ user }}
    user: name={{ user}}

- hosts: db
  tasks:
  - name: sum
    shell: echo 7+8|bc
    register: user
  - name: createuser
    user: name={{user.stdout}}

-e > playbook vars > hosts文件