Thomas Vitale | Software Engineer, Spring, Cloud Native, Kubernetes

Thomas Vitale

Autumn forest, with sunlight filtering through the branches.

Cloud Native Diary #14

LLM-powered applications with Java and Spring AI. Updates from CNCF WG App Development. News from GOTO Copenhagen and KCD Denmark.

A forest in the summer, at sunset.

Cloud Native Diary #13

LLM Observability for Spring AI, enhancing models and vector stores. My book is available in Korean. News from KCD Munich and CNCF WG AppDev.

A white llama drinking coffee in a forest, by a wooden library shelf.

Text Classification with Java, Spring AI and LLMs

This article will explain the main aspects of a text classification system and describe how to implement it with Java and Spring AI while leveraging the power of large language models (LLMs).

A llama walking down the street in a sunny and beautiful city that resembles Barcelona. He he he.

Cloud Native Diary #12

Exciting projects with Java, LLMs, and Generative AI. Conference news from Spring I/O and Devoxx UK. OpenTelemetry and supply chain security.

A view of Paris at sunset, with symbols linking to cloud native, Kubernetes, AI and Ollama.

Cloud Native Diary #11

Exciting projects with Java, LLMs, and Generative AI. Conference news from KubeCon, Voxxed Days, and JFokus. Platforms and supply chain security.

A medieval castle in an Alpine Italian landscape in winter.

Cloud Native Diary #10

Exciting projects with Java and Generative AI, Arconia framework for multitenant Java applications, supply chain security, and conference news.

An imaginative chemistry lab specialized in component analysis on coffee.

Supply Chain Security: SBOMs for Java Applications

SBOMs identify software components in an application. Generate SBOMs for Java to enable vulnerability scanning, license checks and risk analysis.

Landscape of Danish beach and sea at sunrise, with surfers and sailboat in the background.

Cloud Native Diary #9

Devoxx conference and supply chain security, Java and Generative AI, Spring Boot and OpenTelemetry, platform engineering on Kubernetes.

Colourful houses in a row, in a sunny day in Denmark.

Cloud Native Diary #8

Conferences and events about cloud native, Kubernetes, Java, and Spring Boot. Open source contributions to kpack and Carvel. Developer productivity tooling.

View of Amsterdam at night. Photo by Thomas Vitale.

Cloud Native Diary #7

The past few weeks have been intense. KubeCon, platforms, Kubernetes, Carvel, Buildpacks, Cartographer, OSS, conferences, and more.

Cute seal on crystal clear water.

Podman Desktop for Java Development

Install Podman Desktop for managing containers and learn how to use it for Java development (Spring Boot, Quarkus, Testcontainers, Buildpacks).

Leafless trees and wooden table on meadow in countryside

Cloud Native Diary #6

A lot happened in the past few weeks. YouTube shows, meetups, cloud native platforms, Java, Kustomize, Carvel, Cartographer, Keycloak.

Landscape photo of mountain scenery in East Java, Indonesia.

Cloud Native Diary #5

This week, I talk about the future of Java, new features in Spring Boot 3, ARM64 support in Buildpacks, cloud native platforms, and more. Let's get to it.

A picture of a sunny and sandy beach. In the background, the Mediterranean Sea with a ship sailing.

Cloud Native Diary #4

Cloud Native Spring in Action, OpenTelemetry, Buildpacks, Carvel package management, and cloud native platforms.

A path surrounded by flowers and green plants, heading towards mountains covered in snow.

Cloud Native Diary #3

Great feedback for Cloud Native Spring in Action, Spring Boot 3, SLSA, SBOMs, multi-architecture Buildpacks, and platforms.

A container ship sailing at sunset

Cloud Native Diary #2

Excellent feedback for Cloud Native Spring in Action, supply chain security (SLSA, Sigstore), images (Buildpacks, kpack, Paketo), and platforms.

Cloud Native Diary #1

Cloud Native Diary #1

The start of a new blog series. Every week, I'll share my journey working with application development, platform engineering, and cloud native.

Spring Native: Getting started with GraalVM native images

Spring Native: Getting started with GraalVM native images

The Spring Native project provides support for packaging Spring applications as native images using GraalVM, with fast startup times and optimized memory usage.

Devoxx Ukraine 2020: "Cloud Native Spring - Migrating traditional apps" (Talk)

Devoxx Ukraine 2020: "Cloud Native Spring - Migrating traditional apps" (Talk)

Learn the main steps for migrating traditional Spring applications to cloud native: embedded servers, Docker images, externalized configuration, disposability, logging and monitoring.

New Book: Cloud Native Spring in Action - With Spring Boot and Kubernetes

New Book: Cloud Native Spring in Action - With Spring Boot and Kubernetes

I’m thrilled to announce that my book is available in early access. Learn cloud native development with Spring Boot, Spring Cloud, Docker and Kubernetes.

Centralized Configuration with Spring Cloud Config

Centralized Configuration with Spring Cloud Config

Learn how to build a central config server with Spring Cloud Config, configure a Spring Boot application with it, and refresh the config at runtime.

Spring Security and Keycloak to Secure a Spring Boot Application - A First Look

Spring Security and Keycloak to Secure a Spring Boot Application - A First Look

Keycloak is a solution for identity and access management. In this article, we're going to secure a Spring Boot application using Spring Security and Keycloak.

Quarkus - Develop Your First Supersonic Enterprise Java Application

Quarkus - Develop Your First Supersonic Enterprise Java Application

In this article, we're going to getting started with our first supersonic Quarkus application. We will develop a RESTful application using the familiar JAX-RS and CDI APIs, learn how to run it in a Quarkus environment and see how to test it.

Getting Started With Jakarta EE - A Sample Application

Getting Started With Jakarta EE - A Sample Application

Jakarta EE 8 has officially been released last Tuesday. It's the beginning of what it's been promised as "the Future of Cloud Native Java". Let's look at a sample application in Jakarta EE, using Wildfly, Gradle and Docker.

Keycloak Authentication Flows, SSO Protocols and Client Configuration

Keycloak Authentication Flows, SSO Protocols and Client Configuration

In this article, I'm going to introduce the concept of authentication flows. Then, I'll briefly mention the two protocols Keycloak can use to provide its services: OpenID Connect (on top of OAuth 2.0) and SAML. Finally, I'll show you how to configure Keycloak clients.