由于centos7预装了python，因此我们可以跳过python的安装环节（记得关闭防火墙）

[root@model ~]# [root@model ~]# python --versionPython 2.7.5[root@model ~]#

本文使用yum安装ansible

[root@model ~]# yum install epel-release

[root@model ~]# yum install ansible

配置目标服务器192.168.1.10和192.168.1.20（在文件中添加红色部分）

[root@model ~]# vi /etc/ansible/hosts# This is the default ansible 'hosts' file.## It should live in /etc/ansible/hosts##   - Comments begin with the '#' character#   - Blank lines are ignored#   - Groups of hosts are delimited by [header] elements#   - You can enter hostnames or ip addresses#   - A hostname/ip can be a member of multiple groups# Ex 1: Ungrouped hosts, specify before any group headers.## green.example.com## blue.example.com## 192.168.100.1## 192.168.100.10# Ex 2: A collection of hosts belonging to the 'webservers' group## [webservers]## alpha.example.org## beta.example.org## 192.168.1.100## 192.168.1.110# If you have multiple hosts following a pattern you can specify# them like this:## www[001:006].example.com# Ex 3: A collection of database servers in the 'dbservers' group## [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.com192.168.1.10192.168.1.20~~~~~~"/etc/ansible/hosts" 47L, 1041C

生成SSH密钥

[root@model ~]# ssh-keygen -t rsa

将/root/.ssh目录下的id_rsa.pub拷贝到目标服务器

[root@model ~]# scp /root/.ssh/id_rsa.pub root@192.168.1.10:/root/.ssh/authorized_keys

[root@model ~]# scp /root/.ssh/id_rsa.pub root@192.168.1.20:/root/.ssh/authorized_keys

测试批量执行ping命令

[root@model ~]# [root@model ~]# ansible all -m ping192.168.1.10 | SUCCESS => {    "changed": false,     "ping": "pong"}192.168.1.20 | SUCCESS => {    "changed": false,     "ping": "pong"}[root@model ~]#

至此，ansible安装完成~