centos7下安装ansible

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 --version
Python 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.com

192.168.1.10
192.168.1.20

~
~
~
~
~
~
"/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 ping
192.168.1.10 | SUCCESS => {
    "changed": false, 
    "ping": "pong"
}
192.168.1.20 | SUCCESS => {
    "changed": false, 
    "ping": "pong"
}
[root@model ~]# 

至此，ansible安装完成~