Centos7部署轻量级自动化运维工具pssh

pssh是由python编写,可以在多台服务器执行命令的工具。在服务器越来越多的企业这种自动化运维工具越来越火。

Centos7部署轻量级自动化运维工具pssh_第1张图片

下载pssh安装包

[root@localhost ~]# wget https://files.pythonhosted.org/packages/60/9a/8035af3a7d3d1617ae2c7c174efa4f154e5bf9c24b36b623413b38be8e4a/pssh-2.3.1.tar.gz

安装依赖包

[root@localhost ~]# yum install -y make gcc gcc++ python-devel python-pip

安装pssh

[root@localhost ~]# tar xf pssh-2.3.1.tar.gz

[root@localhost ~]# cd pssh-2.3.1

[root@localhost ~]# python setup.py install

配置免密登录

[root@localhost ~]# ssh-keygen

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:

SHA256:3antaxjGw+hdgfSlrXLYhUe5vgHe9b0ehh/gUY9E8Eg [email protected]

The key's randomart image is:

+---[RSA 2048]----+

|            E... |

|          .. ++  |

|        . o.*oo |

|        ...*o*.o|

|        S+.+o@..+|

|        . OoB B o|

|      . o.B.o *.|

|        . o.. +.o|

|          .o..o |

+----[SHA256]-----+

[root@localhost ~]# cd /root/.ssh/

[root@localhost .ssh]# ls

id_rsa  id_rsa.pub

[root@localhost .ssh]# ssh-copy-id 172.16.1.112

/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"

The authenticity of host '172.16.1.112 (172.16.1.112)' can't be established.

ECDSA key fingerprint is SHA256:yFvaxR1x5YDhhe+6xR/Ou6Sm+YPYvPAoiLVKt9mAnXA.

ECDSA key fingerprint is MD5:0d:c4:79:bc:36:7a:a4:82:95:4f:d5:d0:a3:c8:7d:2e.

Are you sure you want to continue connecting (yes/no)? yes

/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed

/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys

[email protected]'s password:

Number of key(s) added: 1

Now try logging into the machine, with:  "ssh '172.16.1.112'"

and check to make sure that only the key(s) you wanted were added.

[root@localhost .ssh]# ssh-copy-id 172.16.1.16

/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"

The authenticity of host '172.16.1.16 (172.16.1.16)' can't be established.

ECDSA key fingerprint is SHA256:ANzlXzrGA87YLI2vzkPJ/iNPiSQ5JStJc95948jE8aw.

ECDSA key fingerprint is MD5:f9:f1:1b:5a:99:64:d8:d8:e9:9b:e6:bb:c3:d5:bd:e7.

Are you sure you want to continue connecting (yes/no)? yes

/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed

/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys

[email protected]'s password:

Number of key(s) added: 1

Now try logging into the machine, with:  "ssh '172.16.1.16'"

and check to make sure that only the key(s) you wanted were added.

测试免密登录

[root@localhost ~]# ssh 172.16.1.112

Last login: Tue Jun  2 09:44:24 2020 from 172.16.1.16

[root@localhost ~]# ssh 172.16.1.16

Last login: Tue Jun  2 09:30:47 2020 from 172.16.1.100

测试pssh

创建aaa文件存放ip地址

[root@localhost ~]# cat aaa

172.16.1.16

172.16.1.112

批量执行date命令

[root@localhost ~]# pssh -h aaa -l root -P "date"

172.16.1.16: 2020年 06月 02日 星期二 09:59:48 CST

[1] 09:59:48 [SUCCESS] 172.16.1.16

172.16.1.112: 2020年 06月 02日 星期二 09:59:48 CST

[2] 09:59:48 [SUCCESS] 172.16.1.112

查看磁盘

[root@localhost ~]# pssh -h aaa -l root -P "lsblk"172.16.1.16: NAME            MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTsda              8:0    0  20G  0 disk ├─sda1            8:1    0    1G  0 part /boot└─sda2            8:2    0  19G  0 part  ├─centos-root 253:0    0  17G  0 lvm  /  └─centos-swap 253:1    0    2G  0 lvm  [SWAP]sr0              11:0    1  4.2G  0 rom  [1] 10:13:02 [SUCCESS] 172.16.1.16172.16.1.112: NAME            MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTsda              8:0    0  20G  0 disk ├─sda1            8:1    0    1G  0 part /boot└─sda2            8:2    0  19G  0 part  ├─centos-root 253:0    0  17G  0 lvm  /  └─centos-swap 253:1    0    2G  0 lvm  [SWAP]sr0              11:0    1  4.2G  0 rom  [2] 10:13:03 [SUCCESS] 172.16.1.112

pssh部署完毕!

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