https://detafti.ir/en/tags/kubernetes/Recent content in Kubernetes on MDT - Personal siteHugoen-ushttps://detafti.ir/en/notes/k8s-liveness-vs-readiness/Fri, 11 Sep 2026 17:20:00 +0330https://detafti.ir/en/notes/k8s-liveness-vs-readiness/<p>The worst Kubernetes outage I keep seeing is not a node dying. It is a slow database, a liveness probe that talks to that database, and a cluster that then kills every pod that was still doing useful work.</p> <p>Liveness does not mean “the app is healthy.” It means “this process is so stuck that Kubernetes should shoot it.” If you point that gun at a dependency, you will shoot the fleet.</p>https://detafti.ir/en/notes/java-spring-kubernetes/Fri, 11 Sep 2026 17:00:00 +0330https://detafti.ir/en/notes/java-spring-kubernetes/<p>A map of how I actually run backend software: Java on the JVM, Spring as the application layer, Kubernetes as the place it lives. Start here, then open the note that matches the problem in front of you.</p> <p>This is not a tutorial index. It is the order I would walk a teammate through after an incident.</p> <h2 id="if-you-are-new-here">If you are new here</h2> <ol> <li><a href="https://detafti.ir/en/notes/spring-transactional-in-production/">Spring <code>@Transactional</code> does not mean what you think</a> — where transactions actually start, and why a method calling another method on <code>this</code> silently does nothing.</li> <li><a href="https://detafti.ir/en/notes/k8s-liveness-vs-readiness/">Liveness is not health</a> — the Kubernetes outage that looks like a crash loop but started as a slow dependency.</li> <li><a href="https://detafti.ir/en/notes/reliability-lessons-from-sqlite/">Reliability lessons from SQLite</a> — why a tool that solves more problems than it creates stays in production.</li> </ol> <p>The <a href="https://detafti.ir/en/courses/java/">Java course</a> is the longer path if you want to write this stack with me, not only read about it.</p>