quarkusioJoin us next Monday, March 30th, at 9am EST for Quarkus Insights Ep. 241 as Guillaume Smet & Sanne Grinovero join us to discuss various improvements, advancements, and changes to Quarkus with the support of Java 25.
Markus EiseleYou can deploy a Quarkus application to Kubernetes without writing YAML.
Yes, really.
Quarkus can generate the Kubernetes resources for you, build the container, and deploy directly to a local cluster like Minikube.
In this tutorial I show the full workflow step-by-step.
🔗 https://www.the-main-thread.com/p/quarkus-kubernetes-deploy-without-yaml-java-minikube
#Quarkus #Java #Kubernetes #CloudNative #Minikube #DevOps #OpenSource
External APIs are great… until the sandbox is down or the response format changes.
In this tutorial I show how to replace the real API with WireMock inside Quarkus so you can build and test reliably.
We cover:
• REST Client mocking
• fault injection
• scenarios
• request verification
Full hands-on guide:
https://www.the-main-thread.com/p/mock-external-apis-quarkus-wiremock-java
Java developers: ever wished your AI assistant could inspect a live Kubernetes cluster?
In this tutorial I show how to build a Kubernetes MCP server with Quarkus and Fabric8, run it locally with minikube, and expose cluster operations as tools that agents can call.
Real code. Real cluster. No magic.
https://www.the-main-thread.com/p/kubernetes-mcp-server-quarkus-fabric8-minikube
JAVAPROWenn #Microservices langsamer starten, als sie skalieren sollen, wird’s teuer. Holger Tiemeyer beschreibt, wie #Quarkus durch Build-Time-Logik & #GraalVM genau diese Kostenfalle vermeidet.
Hier weiterlesen → https://javapro.io/de/java-trifft-zukunft-wie-quarkus-architektur-performance-und-cloud-native-nahtlos-verbindet/
#SoftwareArchitecture @graalvm @quarkusio
Legacy Java systems aren’t going away. But AI agents need structured interfaces.
A simple pattern works surprisingly well:
Run a Quarkus MCP server as a Kubernetes sidecar next to the legacy app.
No changes to the original code.
The sidecar translates REST APIs into MCP tools for agents.
Architecture + code examples here:
https://www.the-main-thread.com/p/legacy-java-ai-mcp-sidecar-quarkus
#Java #Quarkus #MCP #Kubernetes #AIagents #SoftwareArchitecture
Java testing is changing.
In 2026, many teams move away from heavy end-to-end tests and toward component tests. Faster feedback. Fewer flaky pipelines. More confidence in production.
In this article I show how this works in Quarkus and why it matters for modern Java systems.
https://www.the-main-thread.com/p/quarkus-testing-2026-java-component-tests
The Quarkus team recently published new performance benchmarks.
The interesting part isn’t just the results.
It’s the engineering work that went into making them reproducible and transparent.
• why benchmarking Java frameworks is harder than it looks
• why laptop benchmarks often mislead developers
• what these results actually mean
https://www.the-main-thread.com/p/quarkus-performance-benchmarks-java-developers
SVG files are great for vector graphics.
But sometimes you need a PNG.
In this article I show how to build a simple SVG → PNG conversion service in Java using Quarkus and JairoSVG.
Upload SVG → REST API → get PNG.
Full tutorial:
https://www.the-main-thread.com/p/svg-to-png-conversion-quarkus-jairosvg-java
