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In this article, we explain the concept of anemic model which is extremely common in modern applications. We also try to identify why anemic models are so popular, as well as proposing solutions to mitigate this issue. What is an …
Domain Driven Design (DDD) is one of the pillars of object oriented software development. You must understand it really well if you want to produce future proof code and designs. Despite it looks intimidating to most developers, the concepts of …
In this article, we will explain what are REST APIs, also known are RESTful APIs, and how we can design them and implement them quickly. What is an API? First we need to define what an API is. An API …
One of the advantages of using Docker images is that they are portable. However, portability is directly related to the size. A mobile phone wouldn’t be really “mobile” if it weighed 10 Kg. The same applies to Docker images. We …
Immutable Kubernetes Pods are absolutely necessary if you are deploying your applications in a containerized environments and you want them to be secure. Despite this, most developers and teams do not use immutable pods. In this tutorial, I will explain …
In this tutorial, I will show you how to install and learn the basics of Kubernetes in just 10 minutes. We will be using a super-lightweight certified distribution of Kubernetes: MicroK8s by Canonical. This distribution requires very little resources and …
In this tutorial, we install the latest version of Maven on Ubuntu 22.04. Unfortunately, the Ubuntu repository ships an old version of Maven which is not compatible with the recent versions of the Java Development Kit (JDK). We will proceed …
The OpenJDK Docker image (openjdk) has been deprecated, thus you need to immediately migrate to another distribution if you wish to receive feature and security updates. The Eclipse Temurin are a set of Java JDKs offered by Adoptium. In this …
Kubernetes is hands down the most disruptive technology that we have seen in the IT industry in recent years. It is loved by software developers, operators, and business owners. It is pure expression of what DevOps means from a technical …
This is a very simple and short tutorial which helps you configure your NGINX Ingress on microk8s. A common use case is enabling the use-forwarded-headers flag so that NGINX passes incoming X-Forwarded-* headers to upstreams. Verify Addon Presence Let’s verify …