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
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.
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.
32 years in the dev trenches. Here I write what I learned, what I broke, and what nobody tells you in the tutorials.
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