ansible学习笔记(四):when在include中使用

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简单测试ansible的wheninclude中使用

1需求

用到一个配置需求,对hosts中不同类型的主机进行各自的操作。

1)实验环境:

客户端IP
应用类型
Hosts中名称
192.168.24.10
数据库
db
192.168.24.11
应用程序
app

2)操作结果:

192.168.24.10 服务器/tmp下生成db.txt192.168.24.11服务器/tmp下生成app.txt文件

2测试结构

# tree test/

test/

├── hosts

├── install_client.yml

└── roles

    └──install_client

       ├── files

       ├── tasks

          ├── app.yml

          ├── db.yml

          └── main.yml

       ├── templates

1hosts

[db]

192.168.24.10

[app]

192.168.24.11

2install_client.yml

---

###

## laowafang2014-12-1

####

- hosts: '{{ hosts }}'

  user: ansible

  sudo: yes

  sudo_user:root

  roles:

    -install_client

3roles/install_client/tasks/ main.yml       # 本次测试的关键地方

---

### agentd install

- include: db.yml

  when:"hosts == 'db'"

- include: app.yml

  when:"hosts == 'app'"

4roles/install_client/tasks/db.yml

---

  - name: Touchdb file

    shell:touch /tmp/db.txt

5roles/install_client/tasks/app.yml

---

  - name: Touchdb file

    shell: touch /tmp/db.txt

3测试playbook

# cd/etc/ansible/test

[ansible@localhosttest]$ ansible-playbook -i ./hosts install_client.yml --extra-vars "hosts=db"

PLAY [db]*********************************************************************

GATHERING FACTS***************************************************************

ok: [192.168.24.10]

TASK: [install_client | Touch db file]****************************************

changed: [192.168.24.10]

TASK: [install_client | Touch app]********************************************

skipping: [192.168.24.10]

PLAY RECAP ********************************************************************

192.168.24.10              : ok=2    changed=1   unreachable=0    failed=0  

[ansible@localhosttest]$ ansible-playbook -i ./hosts install_client.yml --extra-vars "hosts=app"

PLAY [app] ********************************************************************

GATHERING FACTS***************************************************************

ok: [192.168.24.11]

TASK: [install_client | Touch db file]****************************************

skipping: [192.168.24.11]

TASK: [install_client | Touch app]********************************************

changed: [192.168.24.11]

PLAY RECAP********************************************************************

192.168.24.11              : ok=2    changed=1   unreachable=0    failed=0

### 查看对应服务器IP地址分别生成各自文件。

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