ansible 之 ansible-playbook简单使用

之前我们最常用的就是命令模式，也简称为“临时命令模式”。如下：

[root@chuangxindasai-prometheus ansible]# ansible ceph -m ping
172.18.0.132 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    }, 
    "changed": false, 
    "ping": "pong"
}
172.18.0.133 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    }, 
    "changed": false, 
    "ping": "pong"
}
172.18.0.131 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    }, 
    "changed": false, 
    "ping": "pong"
}

[root@chuangxindasai-prometheus ansible]# ansible ceph -m shell -a "hostname"
172.18.0.131 | CHANGED | rc=0 >>
ceph-admin
172.18.0.133 | CHANGED | rc=0 >>
ceph-node2
172.18.0.132 | CHANGED | rc=0 >>
ceph-node1

这只能做一下简单的操作，如果遇到复杂的操作就不试用了。下面记录一下简单的剧本操作

# 剧本以yaml 格式
# 该剧本里面包含了两个剧本
[root@chuangxindasai-prometheus ansible]# cat test.yml 
---
# 第一个剧本（hosts 定义主机组）
- hosts: ceph
  tasks:
  - name: install httpd
# 定义yum 模块
    yum:
      name: httpd
      state: latest

# 第二个剧本
- hosts: ceph
  tasks:
  - name: restart firewalld
    service:
      name: firewalld
      state: restarted

# 一个剧本中多个task，{{ ansible_ssh_pass }} 还调用了vars 中的参数
---
- hosts: ceph
  tasks:
  - name: install httpd {{ ansible_ssh_pass }}
    yum:
      name: httpd
      state: latest
  - name: restart firewalld
    service:
      name: firewalld
      state: restarted
  - name: command
    command: echo `hostname`

# 上面调用的参数在下面这里配置的
[root@chuangxindasai-prometheus ansible]# cat /etc/ansible/group_vars/ceph.yml
---
ansible_ssh_port: 22
ansible_ssh_user: root
ansible_ssh_pass: ccssoft

运行playbook

[root@chuangxindasai-prometheus ansible]# ansible-playbook /opt/ansible/test2.yml 

PLAY [ceph] ******************************************************************************************************************************************************************************

TASK [Gathering Facts] *******************************************************************************************************************************************************************
ok: [172.18.0.133]
ok: [172.18.0.132]
ok: [172.18.0.131]

TASK [install httpd ccssoft] *************************************************************************************************************************************************************
ok: [172.18.0.131]
ok: [172.18.0.133]
ok: [172.18.0.132]

TASK [restart firewalld] *****************************************************************************************************************************************************************
changed: [172.18.0.132]
changed: [172.18.0.133]
changed: [172.18.0.131]

TASK [command] ***************************************************************************************************************************************************************************
changed: [172.18.0.132]
changed: [172.18.0.131]
changed: [172.18.0.133]

PLAY RECAP *******************************************************************************************************************************************************************************
172.18.0.131               : ok=4    changed=2    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0   
172.18.0.132               : ok=4    changed=2    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0   
172.18.0.133               : ok=4    changed=2    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0

来源：oschina

链接：https://my.oschina.net/wangzilong/blog/4454421

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ansible

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