超简单：Centos7部署轻量级自动化运维工具pssh
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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。文内含长段代码可复制可往左滑，希望对大家有帮助！
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 root@localhost.localdomain
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
root@172.16.1.112'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
root@172.16.1.16'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
[root
@localhost ~]# cat aaa
172.16.1.16
172.16.1.112
[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
[root
@localhost ~]# pssh -h aaa -l root -P
"lsblk"
172.16.1.16: NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda
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]
172.16.1.16
172.16.1.112: NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda
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
总 结
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