Runner Reminder Runner is a command line tool for running commands on thousands of devices that support SSH. I wrote Runner and use it every single day, because unlike Ansible, Runner truly has no dependencies on the client or server side other than SSH. I have used Runner to build entire datacenters, so it is … [Read more…]
Justification For Learning OOP Since 1995, I have written some form of code, but over the years my career has never taken shape with a primary focus on development. Instead in my various roles of Systems, Network, Application and Datacenter engineering & architecture, I have found excuses to let the inner code hacker in me, out. … [Read more…]
Hey Folks, The systems running Tuxlabs are currently running CentOS 6.5 to emulate a production RHEL like setup for an Openstack Cloud. Running an operating system this old has it’s drawbacks such as dependencies. I was recently installing a well know Python framework and ran into compatibility issues. The framework required Python 2.7 and CentOS 6.5 … [Read more…]
In my last post about Runner I briefly explained needing to modify your ~/.ssh/config to use a ProxyCommand to allow for automatic tunneling with SSH.
ProxyCommand /usr/local/bin/sconnect -4 -w 4 -S localhost:8081 %h %p
What I didn’t explain is there is an alternative method that is arguably simpler. It requires creating three small shells scripts & placing them in your path or a … [Read more…]
Example of Runner
$ runner -r web1 -c "whoami" -s
RUNNER [INFO]: MATCHING HOSTNAMES WITH 'web1'
RUNNER: 1 HOSTS HAVE BEEN SELECTED
RUNNER [INFO]: LOGFILE SET - logs/runner.log.2015-01-17.03:10:00
RUNNER [INFO]: USER SET - tuxninja
RUNNER [INFO]: SSH CONNECT TIMEOUT is: 5 seconds
RUNNER [INFO]: THREADS SET - 20
RUNNER [INFO]: SUDO IS ON
RUNNER [INPUT]: Please Enter Site Pass:
web1.tuxlabs.com: [tuxninja@web1 ~]$
RUNNER [RESULT]: Successfully logged into 1/1 hosts and ran your commands in 0:00:08 second(s)
RUNNER [RESULT]: There were 0 login failures.
Why Runner ? I have been working as a Systems & Network Administrator since 1999. In that time I have repeatedly had the need for rapidly executing commands across thousands of servers. There are many applications out there that solve this problem in various ways…to name a few…pdsh, Ansible, Salt, … [Read more…]