This article will show some interesting features of Java Streams and Collections you may not heard about. We will look at both the latest API enhancements as well as the…
Interesting Facts About Java Streams and Collections
Piotr's TechBlog
Java, Spring, Kotlin, microservices, Kubernetes, containers
Pact with Quarkus 3
This article will teach you how to write contract tests with Pact for the app built on top of version 3 of the Quarkus framework. It is an update to…
Migrate from Kubernetes to OpenShift in the GitOps Way
In this article, you will learn how to migrate your apps from Kubernetes to OpenShift in the GitOps way using tools like Kustomize, Helm, operators, and Argo CD. We will…
GitOps on Kubernetes for Postgres and Vault with Argo CD
In this article, you will learn how to prepare the GitOps process on Kubernetes for the Postgres database and Hashicorp Vault with Argo CD. I guess that you are using…
Running Tekton Pipelines on Kubernetes at Scale
In this article, you will learn how to configure and run CI pipelines on Kubernetes at scale with Tekton. Tekton is a Kubernetes-native solution for building CI/CD pipelines. It provides…
Java Development with Odo on Podman, Kubernetes and OpenShift
In this article, you will learn how to develop and deploy Java apps on Podman, Kubernetes, and OpenShift with odo. Odo is a fast and iterative CLI tool for developers…
Kafka Offset with Spring Boot
In this article, you will learn how to manage Kafka consumer offset with Spring Boot and Spring Kafka. An inspiration for preparing this article was the feedback I received after…
Rotate SSL Certificates with OpenShift and Spring Boot
This article will teach you how to dynamically create and rotate SSL certificates used in service-to-service communication with OpenShift and Spring Boot. We will achieve it with a single annotation…
Microservices with Spring Cloud Gateway, OAuth2 and Keycloak
This article will teach you how to use Keycloak to enable OAuth2 for Spring Cloud Gateway and Spring Boot microservices. We will extend the topics described in my previous article…
Spring Boot SSL Hot Reload on Kubernetes
This article will teach you how to configure a hot reload of SSL certificates for the Spring Boot app running on Kubernetes. We will use the two features introduced in…