Director:
192.168.0.118 director.shamereedwine.com dr
webserver:
node1:node1.shamereedwine.com(192.168.0.119)
node2:node2.shamereedwine.com(192.168.0.120)
dbserver:
node2.shamereedwine.com(192.168.0.120)
node3.shamereedwine.com(192.168.0.122)
一、安装ansible
DR上
1、配置epel的yum源，使用yum安装ansible
yum install ansible
二、各节点配置互信
1、各节点上编辑/etc/hosts配置文件，以实现各主机的互相解析，配置如下：
192.168.0.118 director.shamereedwine.com dr
192.168.0.119 node1.shamereedwine.com node1
192.168.0.120 node2.shamereedwine.com node2
192.168.0.122 node3.shamereedwine.com node3
2、dr节点配置ssh互信
[root@localhost ~]# ssh-keygen -t rsa -P ''
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Created directory '/root/.ssh'.
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
a5:ce:85:ba:74:67:51:3c:ae:4b:0d:7e:d6:4d:ef:e1 root@director.shamereedwine.com
The key's randomart image is:
+--[ RSA 2048]----+
| |
| . |
| . + |
| + o . |
| S + . .|
| + o = . o.|
| o + * + ..o|
| . o + + ...|
| . . E.|
+-----------------+
[root@localhost ~]# ssh-copy-id -i .ssh/id_rsa.pub root@node1.shamereedwine.com
[root@localhost ~]# ssh-copy-id -i .ssh/id_rsa.pub root@node2.shamereedwine.com
The authenticity of host 'node2.shamereedwine.com (192.168.0.120)' can't be established.
RSA key fingerprint is cf:98:8a:b1:33:6d:1b:6c:85:34:54:0b:33:f5:27:99.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'node2.shamereedwine.com,192.168.0.120' (RSA) to the list of known hosts.
root@node2.shamereedwine.com's password:
Now try logging into the machine, with "ssh 'root@node2.shamereedwine.com'", and check in:
.ssh/authorized_keys
to make sure we haven't added extra keys that you weren't expecting.
[root@localhost ~]# ssh-copy-id -i .ssh/id_rsa.pub root@node3.shamereedwine.com
The authenticity of host 'node3.shamereedwine.com (192.168.0.122)' can't be established.
RSA key fingerprint is cf:98:8a:b1:33:6d:1b:6c:85:34:54:0b:33:f5:27:99.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'node3.shamereedwine.com,192.168.0.122' (RSA) to the list of known hosts.
root@node3.shamereedwine.com's password:
Now try logging into the machine, with "ssh 'root@node3.shamereedwine.com'", and check in:
.ssh/authorized_keys
to make sure we haven't added extra keys that you weren't expecting.
三、使用ansible
1、探测各节点是否在线
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