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Understanding JVM Memory, CPU, Requests, Limits, and Production Sizing "If you're still sizing your Java application based only on -Xmx, you're sizing it for a virtual machine, not for Kubernetes."…
Externalizing Configuration with ConfigMaps, Secrets, Spring Profiles, and Feature Flags "The best deployment is the one where the application binary never changes. Only its configuration does." Wednesday Morning, 7:45 AM…
Why "Running" Doesn't Mean Your Application Is Ready "A container can be running, the JVM can be alive, and yet your application may still be incapable of serving a single…
Why Every Spring Boot Developer Must Understand SIGTERM Before Running on Kubernetes "Deploying a new version is easy. Deploying it without your customers noticing—that's engineering." Friday Evening, 6:00 PM It's…
Building Cloud-Native Java Applications Instead of Containerized Monoliths "Running a Spring Boot application inside a container doesn't automatically make it cloud-native. Kubernetes can orchestrate your application, but it cannot fix…
How Customer Requests Reach the Right Spring Boot Pod Sarah's deployment has finally reached an important milestone. The Payment Service has been deployed successfully. The kubelet has started the container.…
Why a Running Spring Boot Application Doesn't Always Mean It's Ready Sarah watches the deployment dashboard. Everything appears normal. NAME READY STATUS RESTARTS AGE payment-service-84bd67f6df-j9dkt 1/1 Running 0 18s The…
How Kubernetes Brings Your Spring Boot Application to Life In the previous article, we left our Payment Service in an interesting state. The Scheduler had successfully completed its work. After…
How Kubernetes Chooses the Perfect Node for Your Spring Boot Application In the previous article, we followed Sarah's deployment from the moment she executed kubectl apply until the Deployment Controller…
Imagine arriving at a large international airport. Regardless of whether you're a passenger, an airline employee, airport staff, or a delivery partner, everyone enters through a controlled checkpoint. Your identity…