SSH批量部署服务

SSH批量部署服务

1.1在NFS上作为中心分发服务器将私钥分发到其他服务器上

1.1.1NFS部署

 

[root@nfs-server ~]# useradd zhurui
[root@nfs-server ~]# echo 123456|passwd --stdin zhurui
Changing password for user zhurui.
passwd: all authentication tokens updated successfully.
创建密码对:
[root@nfs-server ~]# su - zhurui     ##切换到zhurui用户下，以后批量分发都在当前用户下，安全考虑
[zhurui@nfs-server ~]$ ssh-keygen -t dsa ##ssh-keygen是生成秘钥的工具，-t参数指建立秘钥的类型，这里建立dsa类型秘钥(还有一种类型的秘钥为RSA，两者加密算法有区别)
Generating public/private dsa key pair.
Enter file in which to save the key (/home/zhurui/.ssh/id_dsa): 
Created directory '/home/zhurui/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/zhurui/.ssh/id_dsa.
Your public key has been saved in /home/zhurui/.ssh/id_dsa.pub.
The key fingerprint is:
6f:65:c4:a6:fb:32:45:0c:85:c3:bc:87:8f:a4:ae:bc zhurui@nfs-server
The key's randomart image is:
+--[ DSA 1024]----+
|         o o.    |
|          *.     |
|           *+    |
|          +++    |
|        So.=o    |
|        ...+o    |
|       .  +.     |
|     .  ..o.     |
|      Eo   o.    |
+-----------------+
[zhurui@nfs-server ~]$ 
[zhurui@nfs-server ~]$ ls -l .ssh/
total 8
-rw-------. 1 zhurui zhurui 672 Mar  5 04:23 id_dsa   ##私钥
-rw-r--r--. 1 zhurui zhurui 607 Mar  5 04:23 id_dsa.pub  ##公钥
将公钥分发给web-lamp01服务器
[zhurui@nfs-server ~]$ ssh-copy-id -i .ssh/id_dsa.pub zhurui@192.168.1.12  ##将公钥分发给1.12服务器
The authenticity of host '192.168.1.12 (192.168.1.12)' can't be established.
RSA key fingerprint is d6:e6:e6:2a:c7:df:99:51:bb:f4:90:29:16:df:c4:a5.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.12' (RSA) to the list of known hosts.
Nasty PTR record "192.168.1.12" is set up for 192.168.1.12, ignoring
zhurui@192.168.1.12's password: 
Permission denied, please try again.
zhurui@192.168.1.12's password: 
Now try logging into the machine, with "ssh 'zhurui@192.168.1.12'", and check in:

  .ssh/authorized_keys

to make sure we haven't added extra keys that you weren't expecting.

[zhurui@nfs-server ~]$ 

 

1.1.2 web-lnmp02客户端分发部署

[zhurui@nfs-server ~]$ ssh-copy-id -i .ssh/id_dsa.pub zhurui@192.168.1.13  ##将公钥分发到1.13服务器
The authenticity of host '192.168.1.13 (192.168.1.13)' can't be established.
RSA key fingerprint is d6:e6:e6:2a:c7:df:99:51:bb:f4:90:29:16:df:c4:a5.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.13' (RSA) to the list of known hosts.
Nasty PTR record "192.168.1.13" is set up for 192.168.1.13, ignoring
zhurui@192.168.1.13's password: 
Now try logging into the machine, with "ssh 'zhurui@192.168.1.13'", and check in:

  .ssh/authorized_keys

to make sure we haven't added extra keys that you weren't expecting.

[zhurui@nfs-server ~]$ 

1.1.3 rsync-backup客户端分发部署

 

[zhurui@nfs-server ~]$ ssh-copy-id -i .ssh/id_dsa.pub zhurui@192.168.1.17
The authenticity of host '192.168.1.17 (192.168.1.17)' can't be established.
RSA key fingerprint is d6:e6:e6:2a:c7:df:99:51:bb:f4:90:29:16:df:c4:a5.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.17' (RSA) to the list of known hosts.
zhurui@192.168.1.17's password: 
Now try logging into the machine, with "ssh 'zhurui@192.168.1.17'", and check in:

  .ssh/authorized_keys

to make sure we haven't added extra keys that you weren't expecting.

[zhurui@nfs-server ~]$ 

 

2.1在NFS上测试

2.1.1 通过ssh命令在当前机器上查看web-lamp01的IP地址

 

[zhurui@nfs-server ~]$ ssh -P22 zhurui@192.168.1.12 /sbin/ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:0C:29:49:CE:B3  
          inet addr:192.168.1.12  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe49:ceb3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7701 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4795 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:4806676 (4.5 MiB)  TX bytes:484902 (473.5 KiB)
注：在命令执行过程中，跳过输入密码的步骤
接着分发文件测试：
[zhurui@nfs-server ~]$ cp /etc/hosts
hosts        hosts.allow  hosts.deny   
[zhurui@nfs-server ~]$ cp /etc/hosts .
[zhurui@nfs-server ~]$ ll
[zhurui@nfs-server ~]$ scp -P22 hosts zhurui@192.168.1.12:~ ##将当前目录下hosts文件分发到1.12家目录下
hosts                                          100%  243     0.2KB/s   00:00    
[zhurui@nfs-server ~]$ 

检查1.12上zhurui家目录下有无hosts文件
[root@lamp01 zhurui]# cat /home/zhurui/hosts 
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4 
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.1.11 nfs-server
192.168.1.17 backup
192.168.1.12 lamp01
192.168.1.13 lnmp02
[root@lamp01 zhurui]# 
通过脚本分发：
[zhurui@nfs-server ~]$ sh fenfa.sh
hosts                                          100%  257     0.3KB/s   00:00    
hosts                                          100%  257     0.3KB/s   00:00    
hosts                                          100%  257     0.3KB/s   00:00  
  

 

批量管理脚本：

 

#!/bin/sh
. /etc/init.d/functions
if [ $# -ne 1 ]
   then
    echo "USAGE:$0 USAGE|COMMAND"
    exit 1
fi
for n in 12 13 17
do
  ssh -p22 zhurui@192.168.1.$n $1
done

~         

 

 

 

批量分发脚本：

 

#!/bin/sh
. /etc/init.d/functions

for n in 12 13 17
do
  scp -P22 $1 zhurui@192.168.1.$n:~ &>/dev/null
  if [ $? -eq 0 ]
    then
      action "fenfa $1 ok" /bin/true
    else
      action "fenfa $1 ok" /bin/false
  fi
done

~     

 

利用分发脚本分发hosts文件

 

[zhurui@nfs-server ~]$ sh fenfa.sh hosts
fenfa hosts ok                                             [  OK  ]
fenfa hosts ok                                             [  OK  ]
fenfa hosts ok                                             [  OK  ]
[zhurui@nfs-server ~]$ 

 

优化后的分发脚本

 

#!/bin/sh
. /etc/init.d/functions
if [ $# -ne 1 ]
   then
    echo "USAGE:$0 {FILENAME|DIRNAME}"
    exit 1
fi
for n in 12 13 17
do
  scp -P22 -r $1 zhurui@192.168.1.$n:~ &>/dev/null
  if [ $? -eq 0 ]
    then
      action "fenfa $1 ok" /bin/true
    else
      action "fenfa $1 ok" /bin/false
  fi
done