Docker's HEALTHCHECK is information, not a routing guarantee. If Kubernetes or Swarm isn't reading it, your container can be "healthy" and still keep taking requests that are going to fail.
Aug 28 2026 · 7′ · Tutorials · docker · devops
A healthcheck that only says "the process is responding" can hide serious business-level failures. Let's break down what the HEALTHCHECK instruction actually promises, where the standard recipe falls apart, and how to use it as the limited operational signal it really is — not as a guarantee of heal
May 28 2026 · 8′ · Tutorials · node.js · docker
A HN thread with 398 points blew up the debate again: is Docker Compose in production legitimate or an antipattern? I ran my real stack on Railway for 30 days and brought actual numbers. Spoiler: it's not embarrassing if you know exactly what it costs you.
May 06 2026 · 8′ · Experiments · node.js · docker
Three broken Dockerfiles, two production outages, and one sleepless night — that's what it cost me to really understand Docker with Node.js. Here's everything I learned so you don't have to pay the same price.
Apr 06 2026 · 9′ · Tutorials · Tutorial · TypeScript
Architecture, real systems, product decisions and technical lessons. Everything reviewed with my own judgment before it ships.
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