Java

In the rapidly evolving landscape of cloud-native development, Java microservices have become a cornerstone of modern applications. However, the complexity of packaging and deploying these services on Kubernetes can be daunting. Enter Helm, a powerful tool that streamlines the process of packaging, configuring, and deploying applications on Kubernetes. In this blog post, we’ll explore how Helm can make your Java microservices deployment process more efficient and scalable. Understanding Helm and Its Role in Microservices Helm is a package manager for Kubernetes, designed to help you easily package, configure, and deploy applications. It uses charts, which are collections of files that describe a related set of Kubernetes resources. Helm charts allow you to define your application’s deployment configuration in a consistent and repeatable way. ...

Docker has become a cornerstone of modern software development, enabling developers to package applications and their dependencies into lightweight, portable containers. For Java applications, writing an efficient and secure Dockerfile is crucial to ensure optimal performance, scalability, and maintainability. This blog post explores best practices for writing Java Dockerfiles, covering everything from minimizing image size to optimizing resource usage. 1. Use a Minimal Base Image The foundation of any Dockerfile is the base image. For Java applications, it’s essential to choose a base image that is both lightweight and secure. The Eclipse Temurin or AdoptOpenJDK images are excellent choices, as they are optimized for Java applications and regularly updated. ...

OAuth 2.0’s Authorization Code Flow is the go-to standard for securing web applications that need to interact with identity providers on behalf of users. In this guide, we’ll walk through how to implement this flow in Java using industry-standard libraries — and explain each step along the way. Why Use the Authorization Code Flow in Java Web Apps? Java remains dominant in enterprise web application development, and OAuth 2.0 is the de facto standard for authorization. When building server-side rendered applications or backend services that interact with identity providers like ForgeRock, Auth0, or Okta, the Authorization Code Flow is the most secure option — especially when combined with HTTPS and secure session management. ...

Access tokens in OAuth 2.0 are short-lived by design. To maintain a seamless user experience without constantly re-authenticating users, OAuth provides a mechanism called refresh tokens. This guide walks you through how refresh tokens work, when to use them, and how to implement access token renewal in a Java backend. What Is a Refresh Token and Why Use It? A refresh token is a special credential issued alongside the access token that allows the client to obtain new access tokens after the old one expires — without involving the user again. ...