使用Shell脚本+expect批量部署ssh

Posted 2020-10-30

Shell脚本+expect批量部署ssh
一、准备工作及思路
1，三台机器做实验（centos6.5、IP：192.168.0.22 （主控制）、192.168.0.156、192.168.0.157）
2，IP：22这一台做主控机器，另外2台做客户机。
3，提前在主控制机器上创建好公钥，安装好expect，使用脚本批量推送ssh公钥。
4，本次部署是以root身份进行下面的操作。
二、正式部署
1，首先穿件秘钥
[[email protected] .ssh]# ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
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:
a3:08:ab:02:bf:7b:12:7d:d9:8f:9c:a9:67:38:53:a1 [email protected]
The key‘s randomart image is:
+--[ RSA 2048]----+
.
.. +S.
. .o..E.o.
.......+ =
..o . + B .
o o= .*
+-----------------+
2，在根目录下创建一个scripts来存放脚本文件和 ip.txt文件
[[email protected] /]# mkdir scripts
[[email protected] /]# cd scripts/
[[email protected] scripts]# touch ip.txt
3，接着在scripts目录下编辑脚本文件及ip.txt内容：
[[email protected] scripts]# cat fenfa.sh
#!/bin/bash
#date:2018-04-11
#author tony
#批量ssh认证建立
for p in $(cat /scripts/ip.txt)
do
ip=$(echo "$p"|cut -f1 -d":")
password=$(echo "$p"|cut -f2 -d":")

expect -c "   
spawn ssh-copy-id -i /root/.ssh/id_rsa.pub [email protected]$ip  
        expect {   
                \"*yes/no*\" {send \"yes\r\"; exp_continue}   
                \"*password*\" {send \"$password\r\"; exp_continue}   
                \"*Password*\" {send \"$password\r\";}   
        }   
"   
done    

for h in $(cat /scripts/ip.txt|cut -f1 -d":")  
do  
ssh [email protected]$h ‘ ifconfig ‘    
#如果命令是多行的，请参照下面  
#ssh [email protected]$h ‘此处写要执行的命令1‘ 
#ssh [email protected]$h ‘此处写要执行的命令2‘ 
#ssh [email protected]$h ‘此处写要执行的命令3‘ 
done
[[email protected] scripts]# cat ip.txt 

192.168.0.156:hwg123
192.168.0.157:hwg123
4,最后执行脚本即可
[[email protected] scripts]# sh fenfa.sh
spawn ssh-copy-id -i /root/.ssh/id_rsa.pub [email protected]
Now try logging into the machine, with "ssh ‘[email protected]‘", and check in:

.ssh/authorized_keys

to make sure we haven‘t added extra keys that you weren‘t expecting.

spawn ssh-copy-id -i /root/.ssh/id_rsa.pub [email protected]
Now try logging into the machine, with "ssh ‘[email protected]‘", and check in:

.ssh/authorized_keys

to make sure we haven‘t added extra keys that you weren‘t expecting.

eth0 Link encap:Ethernet HWaddr 00:50:56:21:DA:F4
inet addr:192.168.0.156 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::250:56ff:fe21:daf4/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:58225 errors:0 dropped:0 overruns:0 frame:0
TX packets:351 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3662557 (3.4 MiB) TX bytes:45504 (44.4 KiB)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

eth0 Link encap:Ethernet HWaddr 00:50:56:35:D4:31
inet addr:192.168.0.157 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::250:56ff:fe35:d431/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:228313 errors:0 dropped:0 overruns:0 frame:0
TX packets:6336 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:22630600 (21.5 MiB) TX bytes:443245 (432.8 KiB)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:19 errors:0 dropped:0 overruns:0 frame:0
TX packets:19 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1292 (1.2 KiB) TX bytes:1292 (1.2 KiB)

当然这个比较low，以后有时间再改进一下。