adrift on a cosmic ocean

Writings on various topics (mostly technical) from Oliver Hookins and Angela Collins. We have lived in Berlin since 2009, have two kids, and have far too little time to really justify having a blog.

Sinagios - a very simple RESTful API to Nagios downtime

Posted by Oliver on the 14th of November, 2011 in category Tech
Tagged with: nagiosrubysinagiossinatra

Last week I spent a bit of time scratching an itch I've had with doing maintenance. We use Nagios for our monitoring (without any addons, plugins or frontends) and scheduling downtime is a pain. Not only that, but deleting downtime is impossible short of screenscraping or (shock) actually clicking in the user interface. When I'm done doing maintenance I want to delete all the downtime (regardless of if the window will naturally come to an end soon or not) because I want notifications to start sending immediately if there is a real problem.

Naturally I did some diligence beforehand as this is hardly a topic that hasn't come up before, and sure enough some guy has implemented something similar but in Python. Nevertheless I wanted to do some coding so I present to you Sinagios.

It's a pretty simple Sinatra app (and thus obviously Ruby), in fact it only does three things:

  • Lists currently scheduled downtime
  • Schedules new downtime
  • Deletes downtime

I also got to dive into a bit of RSpec and Rack-test since I've mostly gotten away with Test::Unit before and non-web-facing systems so it was an interesting change. Fairly soon I'll be uploading a spec file for making RPMs and adding some Puppet recipes to deploy it so that it's a more complete set of stuff.

Hopefully someone will find it useful!

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