Cruising with clouds

October 3 2011

for all you monitoring guys out there, here’s a bunch of new stuff which I’ve recently added to Cruise-monitor. ready? here it comes:

  • Windows support (see documentation here)
  • CruiseControl.NET support, both for RSS feed (not available by default) and HTML project report page (see documentation here)
  • Jenkins support (minor differences with Hudson)
  • Rake tasks for configuring and monitoring
  • build server on Amazon EC2 (dog-feeding anyone?!)
  • Rake task for deploying configuration on EC2 and restart services
  • wiki documentation pages under revision control as well

porting to Windows has been tricky, because (no, you can’t guess it) tests where failing! after playing with sockets library a bit, it turned out to be a “missing” loop statement (while running fine both on MacOs and Ubuntu). even more, don’t forget the obvious filesystem tmp path! then, Microsoft Speech API was good enough to be wrapped by a script, in order to emulate say command.

support for CruiseControl.NET was funny to develop, because I had to force a little bit the code to host HTML parsing as well. in the end, relying on HTML and CSS styles is a bit too fragile, because, you know, HTML is going to be drastically changed. anyway, enabling RSS publisher you can start monitoring an RSS feed.

then, all the EC2 stuff. I’ve signed for a free micro instance, which seems to be good enough for my purposes. currently, CruiseControl.rb and Jenkins are running, with an Apache frontend acting as a proxy. all configuration is under revision control, deploy is completely performed with Ruby, as a Rake task, thanks to the net-ssh client and this nice wrapper script, which sends a bash script to be executed remotely.

I’ve also registered the free domain at, configured for the EC2 instance via DNS, thanks to the free service. www domain is served by the Apache frontend as a permanent redirection to Cruise-monitor wiki pages on GitHub.

finally, all documentation is versioned as a separate git repository, and eventually tested locally with Gollum. if only I could refer images as relative URLs instead of absolute ones..

anyway, I think it’s enough to say Cruise-monitor is evolving, and to be fair I’m really having fun. I’m not a tech zealot, so my appreciation of all the Ruby/Rake/Gem ecosystem is genuine. some SSH, Ubuntu and bash magic and it’s ready to serve!


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