Ruby has the class Rational which allows you to store exact fractions. Any calculation on these variables will now use...
Creating Nagios Config with puppet Let's have a look at the classic way of managing Nagios configuration with exported...
Every modern Rails app should have a Content Security Policy enabled. Very compatible default The following "default" is a minimal...
If you want to automatically delete old container images from your Elastic Container Registry, the solution is a quite simple...
While upgrading CarrierWave from version 0.11.x to 3.x, we encountered some very nasty fails. Below are the basic...
All direct child directories of app are automatically added to the eager- and autoload paths. They do NOT create a...
On the Rails console, assigning an object to a variable can lead to this strange error (without stacktrace): irb > recipient...
In the discussion of the difference between include and extend in Ruby, there is a misconception that extend would add...
I recently stumbled over a problem that my feature tests broke in CI because of a mismatching chromedriver version.
Given you have an array column like this: create_table "users", force: :cascade do |t| t.integer "movie_ids", default: [], array...
Legt man im DNS beispielsweise einen CNAME-Eintrag an, sollte das Ziel am Ende einen Punkt haben, also z.b. d31337.cloudfront.net...
It's not possible to change the bwlimit of Proxmox storages via the Web-UI (at least in Proxmox 7...
View specs are a powerful tool to test several rendering paths by their cases instead of using a more costing...
The recommended additional setup of the spreewald gem, a useful set of cucumber steps, includes adding a file for defining...
Note Don't use reruns as a mean to work around flaky tests. You should always try to fix those...
Do you remember finding where a method is defined? I recently learned from a senior colleague that Method objects are...
The linked rbenv plugin rbenv-each is very helpful to keep QoL gems up to date that are not part...
You don't want sensitive user data in your logs. Background Rails per default filters sensitive data like...
Disclaimer This card is a collection of guides and things to have in mind when upgrading to a specific version...
Besides Plotting graphs in Ruby with Gruff, which comes handy for many uses cases, you sometimes might need configuration for...
Both knapsack and parallel_tests have the option to split groups by historic execution time. The required logs for this...
For my computer science bachelor's thesis I programmed and evaluated a CLI Test Case Prioritization (TCP) tool for makandra...
The git doc states on the difference of these two commands: git-restore[1] is about restoring files in the...
There are multiple ways to redirect URLs to a different URL in Rails, and they differ in small but important...