programming

15 Sep 2025

DZone Java Zone

Spring Cloud Gateway With Service Discovery Using HashiCorp Consul

This article will explain some basics of the HashiCorp Consul service and its configurations. It is a service networking solution that provides service registry and discovery capabilities, which integrate seamlessly with Spring Boot. You may have heard of Netflix Eureka; here, Consul works similarly but offers many additional features. Notably, it supports the modern reactive programming paradigm. I will walk you through with the help of some applications.

Used Libraries

Spring Boot
Spring Cloud Gateway
Spring Cloud Consul
Spring Boot Actuator

The architecture includes three main components:

15 Sep 2025 6:00pm GMT

09 Sep 2025

DZone Java Zone

Secure Your Spring Boot Apps Using Keycloak and OIDC

In this blog, we will take a closer look at Spring Security, specifically in combination with Keycloak using OpenID Connect, all supported with examples and unit tests. Enjoy!

Introduction

Many applications are supported by means of authentication and authorization. However, it is also something software developers find difficult to grasp. In this blog, Spring Security is introduced, which is Spring's solution for adding security to your Spring applications. By means of examples and unit tests, you will learn the annotations and Spring classes. The end goal is to set up an application using OpenID Connect in combination with Keycloak. An introduction to OpenID Connect and Keycloak can be found in a previous blog. It is advised to read this blog if you are not yet familiar with the concepts.

09 Sep 2025 2:00pm GMT

02 Sep 2025

DZone Java Zone

Monitoring Java Microservices on EKS Using New Relic APM and Kubernetes Metrics

Amazon EKS makes running containerized applications easier, but it doesn't give you automatic visibility into JVM internals like memory usage or garbage collection. For Java applications, observability requires two levels of integration: