Ansible是一個簡單高效的自動化運維管理工具，用Python開發（安裝時依賴Python版本，控制主機master器要求Python2.6以上，被控制的主機server需要Python2.6以上。centos6.8自帶Python2.6），能大批量管理N多臺機器，可以併發的在多臺機器上部署應用、安裝軟體、執行命令、配置和編排任務。

安裝ansible之前要檢查控制機的Python版本：
Python -V 即可顯示版本
因為控制機是Python2.6，也可以安裝Python2.7。（詳見Python2.7.13的安裝）

Python版本合格之後開始安裝ansible

一、安裝ansible
1臺控制主機（master）：192.168.1.88

3臺被控制主機（server）：
192.168.1.18
192.168.1.98
192.168.1.185

控住主機：

yum install epel-release
yum install ansible

二、配置

vim /etc/ansible/hosts

在最後面加上被控制主機的IP：

## [dbservers]
##
## db01.intranet.mydomain.net
## db02.intranet.mydomain.net
## 10.25.1.56
## 10.25.1.57

# Here's another example of host ranges, this time there are no
 

# leading 0s:

## db-[99:101]-node.example.com     //此行為原檔案的最後一行
192.168.1.98
192.168.1.18
192.168.1.185

vim /etc/ansible/ansible.cfg
[accelerate]
#accelerate_port = 5099
accelerate_port = 10000 
#accelerate_timeout = 30
#accelerate_connect_timeout = 5.0

# If set to yes, accelerate_multi_key will allow multiple
 

# private keys to be uploaded to it, though each user must
# have access to the system via SSH to add a new key. The default
# is "no".
accelerate_multi_key = yes

三、實現控制主機和被控制主機之間的無密碼認證

同樣是控制主機：

ssh-keygen

一路回車，即可在/root/.ssh目錄下生成id_rsa和id_rsa.put私鑰和公鑰兩個檔案。

然後將鑰匙給到被控制的主機：

ssh-copy-id 192.168.1.18
ssh-copy-id 192.168.1.98
ssh-copy-id 192.168.1.185

至此，安裝配置已經完成，測試是否成功

四、測試：
在控制主機上執行命令，看被控制主機的反應：

[root@localhost ~]# ansible all -m ping
192.168.1.98 | SUCCESS => {
    "changed": false,
    "failed": false,
    "ping": "pong"
}
192.168.1.185 | SUCCESS => {
    "changed": false,
    "failed": false,
    "ping": "pong"
}
192.168.1.18 | SUCCESS => {
    "changed": false,
    "failed": false,
    "ping": "pong"
}

被控制主機有響應，說明安裝配置成功。

注意可能會有下面的警告，沒有報錯即可執行。

[DEPRECATION WARNING]: ACCELERATE_MULTI_KEY option, Removing accelerate as a
connection method, settings not needed either. . This feature will be removed in
 version 2.5. Deprecation warnings can be disabled by setting
deprecation_warnings=False in ansible.cfg.
[DEPRECATION WARNING]: ACCELERATE_PORT option, Removing accelerate as a
connection method, settings not needed either. . This feature will be removed in
 version 2.5. Deprecation warnings can be disabled by setting
deprecation_warnings=False in ansible.cfg.

五、例項

[[email protected] ~]# ansible 192.168.1.98  -a "touch /mnt/file3"
[DEPRECATION WARNING]: ACCELERATE_TIMEOUT option, Removing accelerate as a
connection method, settings not needed either. . This feature will be removed
in version 2.5. Deprecation warnings can be disabled by setting
deprecation_warnings=False in ansible.cfg.
[DEPRECATION WARNING]: ACCELERATE_MULTI_KEY option, Removing accelerate as a
connection method, settings not needed either. . This feature will be removed
in version 2.5. Deprecation warnings can be disabled by setting
deprecation_warnings=False in ansible.cfg.
 [WARNING]: Consider using file module with state=touch rather than running
touch

192.168.1.98 | SUCCESS | rc=0 >>

注意引數 -a 後面用雙引號或者單引號“”將命令引起來,即

ansible 192.168.1.98  -a "command"