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Introduction to gRPC with Quarkus
In this article, you will learn how to implement and consume gRPC services with Quarkus. Quarkus provides built-in support for gRPC through the extension. We will create a simple app, which uses that...
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Manage OpenShift with Terraform
This article will teach you how to create and manage OpenShift clusters with Terraform. For the purpose of this exercise, we will run OpenShift on Azure using the managed service called ARO (Azure Red...
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Handle Traffic Bursts with Ephemeral OpenShift Clusters
This article will teach you how to handle temporary traffic bursts with ephemeral OpenShift clusters provisioned in the public cloud. Such a solution should work in a fully automated way. We must...
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Guide to Modulith with Spring Boot
This article will teach you how to build modulith with Spring Boot and use the Spring Modulith project features. Modulith is a software architecture pattern that assumes organizing your monolith app...
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Apache Kafka on Kubernetes with Strimzi
In this article, you will learn how to install and manage Apache Kafka on Kubernetes with Strimzi. The Strimzi operator lets us declaratively define and configure Kafka clusters, and several other...
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Slim Docker Images for Java
In this article, you will learn how to build slim Docker images for your Java apps using Alpine Linux and the jlink tool. We will leverage the latest Java 21 base images provided by Eclipse Temurin...
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Kafka Tracing with Spring Boot and Open Telemetry
In this article, you will learn how to configure tracing for Kafka producer and consumer with Spring Boot and Open Telemetry. We will use the Micrometer library for sending traces and Jaeger for...
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Testing Java Apps on Kubernetes with Testkube
In this article, you will learn how to test Java apps on Kubernetes with Testkube automatically. We will build the tests for the typical Spring REST-based app. In the first scenario, Testkube runs the...
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Kubernetes Testing with CircleCI, Kind, and Skaffold
In this article, you will learn how to use tools like Kind or Skaffold to build integration tests on CircleCI for apps running on Kubernetes. Our main goal in this exercise is to build the app image...
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Getting Started with Spring Cloud Azure
This article will teach you how to use Spring Cloud to simplify integration between Spring Boot apps and Azure services. We will also see how to leverage the Azure Spring Apps service to deploy, run,...
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Azure DevOps and Terraform for Spring Boot
This article will teach you how to automate your Spring Boot app deployment with Azure DevOps and Terraform. In the previous article in this series, we created a simple Spring Boot RESTful app. Then...
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OpenShift Multicluster with Advanced Cluster Management for Kubernetes and...
This article will teach you how to connect multiple Openshift clusters with Submariner and Advanced Cluster Management for Kubernetes. Submariner allows us to configure direct networking between pods...
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Serverless on Azure with Spring Cloud Function
This article will teach you how to create and run serverless apps on Azure using the Spring Cloud Function and Spring Cloud Azure projects. We will integrate with the Azure Functions and Azure Event...
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Serverless on Azure Function with Quarkus
This article will teach you how to create and run serverless apps on Azure Function using the Quarkus Funqy extension. You can compare it to the Spring Boot and Spring Cloud support for Azure...
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Getting Started with Azure Kubernetes Service
In this article, you will learn how to create and manage a Kubernetes cluster on Azure and run your apps on it. We will focus on the Azure features that simplify Kubernetes adoption. We will discuss...
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OpenShift Builds with Shipwright and Cloud Native Buildpacks
In this article, you will learn how to build the images of your apps on OpenShift with Shipwright and Cloud Native Buildpacks. Cloud Native Buildpacks allow us to easily build container images from...
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Java Flight Recorder on Kubernetes
In this article, you will learn how to continuously monitor apps on Kubernetes with Java Flight Recorder and Cryostat. Java Flight Recorder (JFR) is a tool for collecting diagnostic and profiling data...
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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 the 3.1 and 3.2 versions of the...
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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 and analyze some of...
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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...
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