2011-12-20 – Today’s Links

Posted on December 20, 2011 by Barry O'Donovan

  • Jenkins is an award-winning application that monitors executions of repeated jobs, such as building a software project or jobs run by cron. Among those things, current Jenkins focuses on the following two jobs: (1) building/testing software projects continuously; and (2) monitoring executions of externally-run jobs - http://jenkins-ci.org/.
  • Hubot – GitHub, Inc., wrote the first version of Hubot to automate our company chat room. Hubot knew how to deploy the site, automate a lot of tasks, and be a source of fun in the company. Eventually he grew to become a formidable force in GitHub. But he led a private, messy life. So we rewrote him. Today’s version of Hubot is open source, written in CoffeeScript onNode.js, and easily deployed on platforms like Heroku. More importantly, Hubot is a standardized way to share scripts between everyone’s robots. http://hubot.github.com/.
  • Jenkins is a continuous integration server built on top of Jenkins, controlled by Hubot, and designed for GitHub. https://github.com/github/janky.

 

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2011-12-19 – Today’s Links

Posted on December 19, 2011 by Barry O'Donovan

Some interesting links I came across over the weekend:

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2011-11-04 – Today’s Links

Posted on November 4, 2011 by Barry O'Donovan

less - The dynamic stylesheet language.

LESS extends CSS with dynamic behavior such as variables, mixins, operations and functions. LESS runs on both the client-side (IE 6+, Webkit, Firefox) and server-side, with Node.js.

Ender – a full featured package manager for your browser.

It allows you to search, install, manage, and compile front-end javascript packages and their dependencies for the web. We like to think of it as NPM‘s little sister.

TWITTER BOOTSTRAP

Bootstrap is Twitter’s toolkit for kickstarting CSS for websites, apps, and more. It includes base CSS styles for typography, forms, buttons, tables, grids, navigation, alerts, and more.

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We’ve Released Some of our Nagios Plugins

Posted on October 26, 2011 by opensolutions

We create a lot of Nagios installations for our own systems over, for customer systems which we manage and as a service over at Open Solutions. We’ve written a lot of custom Nagios plugins over the years as part of this process.

We are now making a concerted effort to find them, clean them, maintain them centrally and release them for the good of others.

To that end, we have created a repository on GitHub for the task with a detailed readme file:

They main goal of Nagios plugins that we write and release are:

  • BSD (or BSD like) license so you can hack away to wield into something that may be more suitable for your own environment;
  • scalable in that if we are polling power supply units (PSUs) in a Cisco switch then it should not matter if there is one or a hundred – the script should handle them all;
  • WARNINGs are designed for email notifications during working hours; CRITICAL means an out of hours text / SMS message;
  • each script should be an independant unit with no dependancies on each other or unusual Perl module requirements;
  • the scripts should all be run with the --verbose on new kit. This will provide an inventory of what it finds as well as show anything that is being skipped. OIDs searched for by the script but reported as not supported on the target device should really be skipped via various --skip-xxx options.
  • useful help available via --help or -?

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Some New Nagios Plugins

Posted on October 25, 2011 by Barry O'Donovan

Over the past ten years I have left many many new and hacked Nagios plugins on many servers around the globe. I’m now making a concerted effort to find them, clean them, maintain them centrally and release them.

To that end, I have created a repository on GitHub for the task with a detailed readme file:

As a starting point, there are four plugins available now:

  • check_chassis_cisco.pl – a script to poll a Cisco switch or router and check if the device was recently rebooted; its temperature sensors; its fans; its PSU; its CPU utilisation; and its memory usage.

 

  • check_chassis_server.pl – a script to poll a Linux / BSD server and check its load average; memory and swap usage; and if it has been recently rebooted.

 

  • check_portsecurity.pl – a script to check all ports on a Cisco switch and issues a critical alert if port security has been triggered resulting in a shutdown port on the device.

 

  • check_portstatus.pl – a script which will issue warnings if the port status on any Ethernet (by default) port on a Cisco switch has changed within the last hour (by default). I.e. a port up or a port down event.
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