This article uses straightforward Spring Boot examples to illustrate how your application can inadvertently lose messages or process them twice due to the Kafka offset commit mechanism. It builds upon…
Piotr's TechBlog
Java, Spring, Kotlin, microservices, Kubernetes, containers
Claude Code Template for Spring Boot
A few days ago, I published my proposition of the Claude Code template for a typical Spring Boot application in this GitHub repository. The level of interest in this repository…
Speed up Java Startup with Spring Boot and Project Leyden
This article explains how to use the new Java features provided within Project Leyden to speed up Spring Boot application startup. Project Leyden is an OpenJDK initiative focused on making…
Local AI Models with LM Studio and Spring AI
This article explains how to use LM Studio to run AI models locally and use them in a Java application with Spring AI and Spring Boot. LM Studio is one…
Claude Code on OpenShift with vLLM and Dev Spaces
This article explains how to run Claude Code on OpenShift as a VSCode plugin and then integrate it with AI models deployed on OpenShift using vLLM. vLLM supports the Anthropic Messages…
AI Models in Containers with RamaLama
This article explains how to run AI models locally in containers with RamaLama and integrate the sample Java application with them. RamaLama brings AI inferencing to the container world of…
Create Apps with Claude Code on Ollama
This article explains how to run Claude Code on Ollama and use local or cloud models served by Ollama to create Java apps. Read this article if you are experimenting…
Spring AI with External MCP Servers
This article explains how to integrate Spring AI with external MCP servers that provide APIs for popular tools such as GitHub and SonarQube. Spring AI provides built-in support for MCP…
Istio Spring Boot Library Released
This article explains how to use my Spring Boot Istio library to generate and create Istio resources on a Kubernetes cluster during application startup. The library is primarily intended for…
Startup CPU Boost in Kubernetes with In-Place Pod Resize
This article explains how to use the In-Place Pod Resize feature in Kubernetes, combined with Kube Startup CPU Boost, to speed up Java application startup. The In-Place Update of Pod…
New Book Published
My latest book Hands-On Java with Kubernetes is now available on Leanpub!