Tag: GitHub

A Service Monitor built with Polymer

I tried to build a service monitor having the following features:

  • showing the reachability of HTTP servers
  • plotting the amount of messages in a specific RabbitMQ queue
  • plotting the amount of queues with specific prefixes
  • showing the status of RabbitMQ queues i.e. how many messages are in there? are there any consumers? are they hung?
  • showing the availability of certain Redis clients

Well, you can find the result on GitHub.
It uses two things I published before: polymer-flot and flot-sparklines. 😀

An example dashboard:

polymer-service-monitor screen shot

Android Backup and Restore with ADB

Updating my OnePlus One recently to Cyanogen OS 12 I had to reset my phone a few times before everything ran smoothly … so I wrote a pair of scripts to help me copy things around.

It uses the Android SDK’s ADB tool to do the copying since the Android File Transfer Tool for Mac has a laughable quality for Google’s standards.

Update 2018-11-22:
Since the scripts became more sophisticated I moved them to a proper project on GitHub.

Render Rails assets to string

If you ever needed a way to render a Rails assets to a string, Hongli Lai from Phusion describes how. 🙂

I prepared a Gist wrapping it into a nice helper. 😀

module ApplicationHelper
  # thanks to http://blog.phusion.nl/2011/08/14/rendering-rails-3-1-assets-to-string/
  # you may need to change the owner of the tmp/cache/* directories to the web servers user
  # e.g. for Debian systems: `chown -R www-data:www-data tmp/cache/*`
  def render_asset(asset)
    Conferator::Application.assets.find_asset(asset).body.html_safe
  end
end