Posts from Rudy De Busscher

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Rudy De Busscher loves to create web applications using Jakarta EE and MicroProfile. In his role as Technical Pre-Sales & Developer Advocate at Payara Services, he writes technical content; contributes to MicroProfile implementations and promotes the Payara Platform. He is a regular speaker at the world’s biggest developer and Java industry events, including JavaLand, ConFoo, jLove and more. He has been active in the IT industry for more than 20 years and during this time has created many applications for customers. He is also a big fan of open source and has helped in various open source projects such as DeltaSpike, PrimeFaces, and Apache MyFaces. Passionate about application security, you can often find him discussing OAuth2, OpenID Connect, and JWT. He maintains the Octopus OpenSource project and is a member of the Jakarta EE Security API team.

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Introducing the Payara Kubernetes Operator

When using Kubernetes, for more complex scenarios it is not enough to start the deployment or service. You also need to execute some commands within the containers to perform some configuration or initialization of the environment.

To automate configuration or the process of initializing an environment, you can write a Kubernetes operator.The Payara Kubernetes Operator, released as a Proof of Concept or Minimum Viable Product (MVP) in our June Payara Platform release, helps you to set up a Payara cluster using the Deployment Group feature of the Payara Server.

Do You Really Need Kubernetes?

These days, it seems Kubernetes is a topic that is never too far from people's lips.  The tool, and the associated tools built around it, are talked about so often it seems it's the only subject important to developers these days - especially as the IT world becomes increasingly orientated towards cloud and microservices.

But in spite of all the conversation around Kubernetes... do you really need Kubernetes for your environment? Or is it just another case of the next 'new and shiny' object,  with people distracted by the novelty and possibility, rather than the facts? In this blog, I'll take a closer look at why Kubernetes might be a case of the hype outweighing the helpfulness in most cases. 

Introduction to New AutoScale Feature Available in Payara Server


Running your application sometimes requires multiple instances to handle the requests of the users. Within the Payara Platform, the Domain Data Grid helps you configure your environment to run your application in a cluster. Besides the setup of a cluster itself, many applications can benefit from an environment that scales dynamically.

The number of instances must increase when the application usage peaks and should decrease when activity is low to reduce the resource usage and the corresponding costs associated with it. The introduction of the AutoScale feature in Payara Server Community 5.2021.4  helps us achieve this dynamic scalability.

GlassFish 6.1 Should Not Be Used In Production: Here’s Why

Earlier this week, Jakarta EE 9.1 was released. This is an update to Jakarta EE 9, adding support for JDK 11 - you can read more about it in our bloghere.

Alongside the Jakarta EE 9.1 release, GlassFish 6.1 has been released as a Compatible Implementation

However, although GlassFish is still used by many - a legacy of the time it was supported by Oracle - we would argue it is NOT a good choice for running your enterprise applications in production.

If you are considering updating to more recent GlassFish versions, it might be better to consider more reliable, supported, and up-to-date alternatives. In this blog, I explain why GlassFish 6.x is not the best choice for your mission critical deployments.

Getting Started with Jakarta EE 9: Context And Dependency Injection (CDI)

In this series about getting started with Jakarta EE 9, we look at various specifications and how you can use them for your next application. In the previous blogs of this series, we set up our development environment and had a closer look at implementing REST endpoints.

This time, I will explain a few features of Context and Dependency Injection (CDI). The CDI specification is an important backbone of Jakarta EE as it brings several specifications together. Over the years, it became more and more important as an increasing number of specifications started using CDI as the basis for it.

In this blog, I will tell a bit about the different scopes, the interceptor mechanism, and the Event system.

How to Configure the HSTS Header on Payara

The HTTP Strict-Transport-Security response header (often abbreviated as HSTS) tells the browser that it should access the website only using HTTPS, instead of using HTTP.

The May 2021 releases of the Payara Platform, Community version 5.2021.3 and Enterprise version 5.28.0, allow you to configure the HSTS header.