You can configure a stat socket for haproxy in the global section of the configuration file: global daemon
After restarting an OpenStack host you may encouter problems with missing iptables rules (we're on an quite old release...
Note This card does not reflect the current state of lazy loading technologies. The native lazy attribute could be used...
While you usually do not need a Content-Type on GET request (which have a blank body), an external API...
Sometimes you want to know exactly how many objects exist within your running Ruby process. Here is how: stats = {} ObjectSpace.each...
You want to test your 1GE or 10GE internet uplink? We needed to ensure we have full 10GE to the...
You can say this in Javascript: $.fn.jquery => "1.11.1"
Redactor is yet another WYSIWYG editor. It definitely has its weak points, but I want to point out that it...
Our applications not only need to be functional, they need to be fast. But, to quote Donald Knuth, premature optimization...
What is a Cookie? Google it if you do not know. How are cookies transferred between your browser and...
The asset pipeline is one of Rails' two mechanisms how stylesheets, javascripts and images from your /assets folder are processed...
Some tasks in a web application are better not done live when a user request a page, but in the...
To safely transport an arbitrary string within a URL, you need to percent-encode characters that have a particular meaning...
As the web is being used for more and more tasks, expectations rise. Not only should web pages offer rich...
In the DevTools settings, there's a "Shortcuts" section. Found these keyboard shortcuts there: General ESC Toggle drawer
This is how you regain disk space from OpenStack instances if you are using kvm and qcow. If your instance...
Understand how nested attributes appear in the params. See how the Rails form helpers encode the names of nested...
You have the following HTML structure:
If you want to run Javascript code whenever someone clicks on a ...
..., you...
Moved from Less to Sass. Bootstrap now compiles faster than ever thanks to Libsass, and we join...
Your MovieDB gained traction and is now a popular tool among cineasts. This comes with a downside: You noticed a...
We are using the BEM pattern ("Block, Element, Modifier") to structure our CSS in all new projects. We try to...
Read the following material: World's shortest UI/UX design course Easiest Way to Pick UI Colors
We use Selenium WebDriver integrated with Cucumber/Capybara for full-stack integration testing. Try and use it Your forked MovieDB should...
Built-in matchers Get an overview of all the matchers that are built into RSpec. Play with some of...