This blog post describes how we can write assertions with AssertJ and ensure that our feedback loop is as short as possible.

A documentation repository for gitworkflows https://hackernoon.com/how-the-creators-of-git-do-branches-e6fcc57270fb

Design patterns are reusable solutions to commonly occurring problems in software design. Let's take a look at how they work and explore some popular JavaScript design patterns.

Install Hadoop on Ubuntu, Hadoop Single Node Setup Standalone Mode on Ubuntu, hadoop installation steps, adding hadoop user to sudo users in ubuntu, installing hadoop 3 on Ubuntu, testing hadoop installation on Ubuntu by running word count program

LeDocker and container networking allow containers, the units of workload in data centers, to connect to clouds and virtual machines.

There are a lot of different parts to GraalVM, so if you’ve heard the name before, or even seen some of our talks, there are for sure things that it can do that you don’t know about yet. In this…

After a few months getting the right stack in place, we have officially started delivering projects in a 100% serverless way. Learn More!

JavaScript provides primitive types and means of processing those. However, those are not enough. Real data must somehow come into the program and data must somehow leave the program, for it to become useful to us. In this talk, we will see how two abstractions…

A guide to the common steps we've observed in breaking a monolithic application up into microservices

中文版 Java developers have a vast selection of open source frameworks to build server-side APIs at their disposal: from Spring and Spring Boot to Jersey to Spark. Normally, these frameworks embed a servlet container engine, such as Tomcat, in the built package…

Installing Kubernetes on AWS

I’ve already written about the excellent monitoring features available in Spring Boot. In Spring Boot 2.0, there has been a major rewrite regarding how the /metrics endpoint is designed. This is the subject of this post.

TLDR;Java and Docker aren’t friends out of the box. Docker can set memory and CPU limitations that Java can’t automatically detect. Using...

Till JDK 10, running java applications in linux containers was a bit tricky and requires additional setup to avoid surprises. These issues does not affect only older versions of Java (prior to 10), but also some tools that collect information from the execution…

Last week, I wrote about how one could migrate metrics from Spring Boot 1.5 to Spring Boot 2.0. This week, it’s time to check the different metrics available in Spring Boot 2.0 and how to create them. Meter There are 4 main types of metrics available:…

Due to the high interest and controversy concerning this blog post, we believe that it is worth adding some context
on how we work and make decisions at Allegro. Each of more than 50 development teams at Allegro has the freedom to choose
technologies from…