Table of Contents Vocabulary for this articleForewordPart 1 – Bringing companies on-chain with x402Part 2- Introduction: Beyond Ads and Subscriptions: Agent Commerce on x402 and ERC-8004Part 3 – Tech that will change the internetAgent commerce, x402, and ERC-8004: from ad-funded …
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Java and Jakarta EE and the Evolution of the Cloud with Nanos Unikernel
Table of Contents Why Nanos UnikernelWhat Changes Compared to KubernetesNanos Images = Cloud-Native Immutable ImagesCI/CD: GitHub Actions for Building Azul 25 + Payara 7 on Nanos ImagesScaling: The Hypervisor Does Kubernetes’ JobApplication Upgrades: Rolling Just Like KubernetesSecurity: Stronger Isolation than …
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How to publish a Java Maven project to Maven Central using JReleaser and GitHub Actions (2025 Guide)
Table of Contents PreconditionsGPG keyCoordinate (group-id)Preparing your projectJReleaserInstalling locallyJReleaser configurationThe actual local releaseStagingReleaseCheck progress in Maven Central repository This article is a tutorial that guides you through the process of releasing a Java module with JReleaser to Maven Central with …
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Micrometer & Prometheus in Spring Boot: Kafka Burger Orders🍔📨
Learn Micrometer and Prometheus in Spring Boot by building a Kafka Burger Orders app that emits metrics. Step-by-step guide with code and takeaways.
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JC-AI Newsletter #8
Fourteen days have passed, and it is time to present a fresh collection of readings that could influence developments in the field of artificial intelligence. This newsletter focuses on examining how AI enhances productivity through enterprise studies, agentic system architecture, …
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JC-AI Newsletter #7
Fourteen days have passed, and it is time to present a fresh collection of readings that could influence developments in the field of artificial intelligence. Beyond focused tutorials that can enhance your understanding of AI applications, this newsletter concentrates on …
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Why Mirroring Production in Dev Helps You Avoid Costly Mistakes
Table of Contents The setup: A realistic aggregation scenarioThe application behind the testTesting on M0: The hidden riskTaking it to production: Same query, different outcomeReal-time metrics: Detecting the bottleneckQuery insights: The detective toolDon’t guess, let Performance Advisor show the wayResilience …
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Cloudflare Tunnel for Home Assistant
Table of Contents The initial setupCloudflare Tunnel for Home AssistantRemoving Let’s Encrypt add-onConclusion I continue to take care of my Home Assistant. This week, I replaced my original setup with Cloudflare Tunnel. This is the 6th post in the My …
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One giant Kubernetes cluster for everything
Table of Contents The one giant cluster approachBetter resource utilizationLower operational overheadStraightforward networking and service communicationSimplified governanceCost efficiencyDownsides of a one giant cluster approachLarger blast radiusComplex multi-tenancy managementScalability limitsCluster-wide objectsWhat’s the ideal size, then?vClusterHow vCluster mitigates the downsides of a …
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Pull request testing on Kubernetes: vCluster for isolation and costs control
Table of Contents Weaving vCluster into the GitHub workflowChanges to the workflowCleaning upConclusion This week’s article is the third and final in my series about running tests on Kubernetes for each pull request. In the first post, I described the …
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Run a Java Lambda Function From a Docker image
Table of Contents PrerequisitesDevelopmentMaven ArchetypeLambdaDockerBuilding the projectDeploymentSupporting AWS InfrastructureUpload DockerLambda DeploymentSAM Deployment (Alternative)TestingLocal TestingRemote TestingReferences Have you ever wanted to deploy a Java Serverless function, but package it with a Docker Image? That is possible now with AWS new Container …
