1.密钥认证

 ssh-keygen -t rsa -C "[email protected]"

 ssh-copy-id -i .ssh/id_rsa.pub [email protected]

2.并入管理组

 /etc/ansible/hosts

 [webserver]

  x.x.x.x

 [dbserber]

  x.x.x.x

3.常用模块

 (1)ping: 主机探测，返回pong

    ansible all -m ping

 (2)command: 执行命令，不支持管道

    ansible all -m command -a "touch ./test"

 (3)shell: 执行命令，支持管道

    ansible all -m shell -a "cat /etc/passwd | grep root"

 (4)cron: 同时发布任务

    ansbile all -m cron -a  "minute|day|month|weekday|hour=*/5 job='/sbin/ntpdate    x.x.x.x &> /dev/null' name=time"

 (5)yum: 安装和卸载

    ansible all -m yum -a "name=pkname "

    ansbile all -m yum -a "name=pkname state=absent"

 (6)service: 启动和停止服务

    ansible all -m service -a "name=pkname            state=started|stopped"

 (7)copy: 赋值文件

    ansible all -m copy -a "src=/path/file dest=/path/file"

    ansible all -m copy -a "content='123' dest=/path/file"

 (8)user: 

    ansible all -m user -a "name=user1 state=present|absent system=yes|no "

4.playbook 

 (1)创建xxx.yaml文件

 (2)编辑xxx.yaml

  - hosts: webserber

   remote_user: root

    tasks:

    - name: add user

     user: name=` item`.`name ` group=` item`.`group `

    with_items:

    - { name: "`name1`" group: "`group1`" }

    when: ansible_distribution_major_version=="7" 

    - name: copy conf

    copy: src=/path/file dest=/path/file

    notify: copy conf

    tags: copy conf

    handlers:

    - name: copy conf

    service: name=httpd state=stopped

  (3)运行 ansible-play -t "copy conf" xxx.yaml

5.传递参数

 (1)内置变量 ansible all -m step 

 (2)写在hosts中 

    [webserver]

    x.x.x.x 80

    x.x.x.x 8080

 (3)写在vars中

    vars:

    - username: "user1"

    - groupname: "group1"

 (4)调用roules时

    roles:

    - {role:test,name=magedu }

 (5)运行命令时传递

    ansible-plya -e "name=magedu age=99" xxx.yaml

6.roles

 (1)创建/etc/ansible/roles/test

 (2)目录结构

    file: 存放copy文件

    template: 存在模板

    tasks: 必须有一个main.yml,其余可include进来

    handlers: 存放触发器，必须有一个mail.yml

    vars: 存放参数，不用加-,直接name=value

    meta: 特殊设定及其依赖关系

    default: 设定默认变量

 (3)写playbook,调用角色

    - hosts: all

     remote_user: root

     roles:

     - test