sshp - parallel ssh when you want just text output

This is a binary executable that will execute commands over ssh to multiple hosts at the same time. It will only run on 10 hosts at any one time. There are multiple ways to specify what hosts you want to ssh into. It will only output the result of your command or the error that was encountered.

This has only been compiled and tested for Linux x86_64 using GOOS=Linux GOARCH=amd64.

Examples

[corby@homebase ~]# sshp -h
Usage of sshp:
-c string
        Command to execute over ssh.
-config string
        Config file to use. (default "/etc/sshp.conf")
-d	Print debug messages.
-f string
        Host file to use, one hostname per line.
-h	Print help.
-iniFile string
        Path to ini file.
-iniSection string
        ini section to retrieve.
-k string
        Path to ssh key.
-l string
        Comma-separated list of hosts.
-s	Use sudo to become root on hosts.
-u string
        User to login as.

Specify comma-separated list of hosts on the CLI

[corby@homebase ~]# sshp -l host01,host02 -c "uname -a"
host01: Linux host01 2.6.32-754.3.5.el6.x86_64 #1 SMP Thu Aug 9 11:56:22 EDT 2018 x86_64 x86_64 x86_64 GNU/Linux
host02: Linux host02 2.6.32-754.3.5.el6.x86_64 #1 SMP Thu Aug 9 11:56:22 EDT 2018 x86_64 x86_64 x86_64 GNU/Linux

Use a list of hosts in a file

[corby@homebase ~]# cat /tmp/sshp_hosts 
host01
host02
host03
host04
host05

[corby@homebase ~]# sshp -f /tmp/sshp_hosts -c "uname -a"
host01: Linux host01 2.6.32-754.3.5.el6.x86_64 #1 SMP Thu Aug 9 11:56:22 EDT 2018 x86_64 x86_64 x86_64 GNU/Linux
host02: Linux host02 2.6.32-754.3.5.el6.x86_64 #1 SMP Thu Aug 9 11:56:22 EDT 2018 x86_64 x86_64 x86_64 GNU/Linux
host03: Linux host03 2.6.32-754.3.5.el6.x86_64 #1 SMP Thu Aug 9 11:56:22 EDT 2018 x86_64 x86_64 x86_64 GNU/Linux
host04: Linux host05 2.6.32-754.3.5.el6.x86_64 #1 SMP Thu Aug 9 11:56:22 EDT 2018 x86_64 x86_64 x86_64 GNU/Linux
host06: Linux host06 2.6.32-754.3.5.el6.x86_64 #1 SMP Thu Aug 9 11:56:22 EDT 2018 x86_64 x86_64 x86_64 GNU/Linux

Specify a particular section of an ini file...in this example, the Ansible hosts file

[corby@homebase ~]# sshp -iniFile /etc/ansible/hosts -iniSection rhel6 -c "uname -r"
host01: 2.6.32-754.3.5.el6.x86_64
host02: 2.6.32-754.3.5.el6.x86_64
host03: 2.6.32-754.3.5.el6.x86_64
host04: 2.6.32-754.3.5.el6.x86_64
host05: 2.6.32-754.3.5.el6.x86_64
host06: 2.6.32-754.3.5.el6.x86_64
host07: 2.6.32-754.3.5.el6.x86_64
host08: 2.6.32-754.3.5.el6.x86_64
host09: 2.6.32-754.3.5.el6.x86_64
host10: 2.6.32-754.3.5.el6.x86_64
host11: 2.6.32-754.3.5.el6.x86_64
host12: 2.6.32-754.3.5.el6.x86_64

You can use -s for sudo...

[corby@homebase ~]$ sshp -iniFile /etc/ansible/hosts -iniSection stress -s -c "service ntpd status"
host01: ntpd (pid  151) is running...
host02: ntpd (pid  45326) is running...
host03: ntpd (pid  22661) is running...