Centos7中如何部署pssh

pssh是python写的可以并发在多台机器上批量执行命令的工具，它的用法可以媲美ansible的一些简单用法，执行起来速度比ansible快它支持文件并行复制，远程命令执行，杀掉远程主机上的进程等等。

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-keygenGenerating 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.localdomainThe 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]# lsid_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 keysroot@172.16.1.112's password:Number of key(s) added: 1Now 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 keysroot@172.16.1.16's password:Number of key(s) added: 1Now 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 172.16.1.112Last login: Tue Jun  2 09:44:24 2020 from 172.16.1.16[root@localhost ~]# ssh 172.16.1.16Last 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 aaa172.16.1.16172.16.1.112

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] 172.16.1.16172.16.1.112: 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！