DevOps Curriculum

AWS VPC ist Teil der EC2 Familie und wird benötigt um Netzwerkressourcen bereitzustellen. Es ist komplett mit Software-defined Networking...

DevOps Curriculum

AWS Identity and Access Management (IAM) ist der zentrale AWS Service um Berechtigungen für AWS API Endpoints zu verwalten. Es...

Git allows you to set push options when pushing a branch to the remote. You can use this to build...

DevOps Curriculum

Als DevOps Engineer kann es häufiger vorkommen, dass du ein lokales Testsetup bauen musst, um eine bestimmte Software oder ein...

Unpoly's [up-observe], [up-autosubmit] and [up-validate] as well as their programmatic variants up.observe() and up.autosubmit...

When terragrunt is relaying information to input variables it's happening via environment variables. Depending on the size of the...

makandra dev

tl;dr git checkout is the swiss army of git commands. If you prefer a semantically more meaningful command for...

New versions of wkhtmltopdf dissallow file:// URLs by default. You can allow them by passing --enable-local-file-access.

You have uncommited changes (you can always check by using git status), which you want to discard.

tl;dr In RubyMine you can use find and replace with capture groups (.*?) and backreferences $1 (if you have several...

workingdraft.de

The robots.txt file and HTML tag can be used to control the behavior of search engine crawlers. Both have different...

Ruby's standard library includes a class for creating temporary directories. Similar to Tempfile it creates a unique directory name...

A memory leak is an unintentional, uncontrolled, and unending increase in memory usage. No matter how small, eventually, a leak...

When you build a JSON API you need to come up with a style to represent attributes, pagination, errors or...

If you need to convert an SVG source to PS or EPS, the most common suggestion on the interwebs is...

Working with a self-signed certificate is much easier, when the browser accepts it. Google Chrome Warnings from chrome might...

When your Rails application offers downloading a bunch of files as ZIP archive, you basically have two options:

Recently we detected a memory leak in one of our applications. Hunting it down, we found that the memory leak...

To read the Rails session from a Rack middleware, use env['rack.session']. It's an ActionDispatch::Request::Session object.

Issue: You have an app using jsbundling-rails and esbuild. After deploy, the assets built by esbuild are missing in...

While working on a Rails application, your code base will grow a collection of different file types including: Ruby (business...

In our monitoring, RabbitMQ queues like aliveness-test may show up as unresponsive, with a ping timeout after 10 seconds...

DevOps Curriculum

Bei Automatisierungsaufgaben kannst du dich nicht immer auf fertige Tools verlassen. Häufig musst du eine Schnittstelle zu einem bestehenden System...

DevOps Curriculum

Based on the Ruby Basics Card in the developer Curriculum Ruby is the programming language we use on the backend...