A comprehensive Domain-Driven Design example with problem space strategic analysis and various tactical patterns. - ddd-by-examples/library

In this post, you will learn how to create an Ansible playbook. As an exercise, you will install an Apache Webserver onto two target machines and change the welcome page.

A framework for integrating technology and business strategy based on ten common strategic directions

Encountered a ‘Permission Denied’ error on a file copied to a Docker image or when accessing a file on a mounted volume within a Docker container? In this blog, you will learn why you g…

This blog is a special edition because it is my 100th blog! I will explain what this blog has given me in the past five years. If you are planning to start a blog of yourself, you may use this list…

This article describes a framework for making architectural decisions using three building blocks: The company's own Technology Radar; Technology Standards; and Architecture Decision Records (ADRs). The framework clarifies decision-making, team involvement, and information on already made decisions and aligns with the company's needs and culture.

In this post, you will learn how to set up a basic Ansible Inventory. Besides that, you will learn how to encrypt sensitive information by means of Ansible Vault. Enjoy!

Software Architecture is the important aspects of a software system's internal design, usually its major components and aspects that are hard to change.

In this blog, I will explain how I passed the AWS Certified Developer – Associate exam. This might help you in your journey to pass the exam. Enjoy!

When you want to experiment with Ansible, you will need to setup a test environment. In this blog, you will create a test environment containing one controller and two target machines. This will gi…

Clean Architecture, Onion Architecture, and Hexagonal Architecture (aka Ports-and-Adapters) have become the norm for backend system design today. Powerful influencers have promoted these architectures without stressing enough that they are (overly)complex, exhaustive blueprints that need …

Are you also often uninspired when you need to think of useful test data for your unit tests? Is ‘John Doe’ your best test friend? Do not worry, Datafaker comes to the rescue! In this b…

In this blog, you will learn how to manage several Java Development Kits (JDKs) on your Linux system using SDKMAN. Besides JDKs, several other SDKs can be managed by means of SDKMAN. Enjoy!

If you attend conferences or read technical articles, you could think that microservices are the correct and only way to build a system at the moment. Despite some pushback from cooler heads, the default architecture is microservices. In this post, I’d like to argue why it’s wrong. I’ll first get back to the origin of microservices and the fundamental reason to use them. Then, I’ll describe why microservices don’t fit most organizations' structures.

In this blog, you will get a short introduction into AWS Step Functions. You will also create a workflow from scratch with a lambda. The output of the lambda will be transformed so that it can be u…

How does Spring Boot support building a 12-Factor app? What do we have left to do?

In this blog, the AWS Serverless Application Model (AWS SAM) is introduced. You will learn what SAM is and where it can be used for. You will also get your hands dirty, because you will create an A…