https://krtffl.dev/tags/swarm/ Recent content in swarm on krtffl.dev Hugo -- gohugo.io en © [krtffl](https://krtffl.dev) Mon, 22 Jun 2026 00:00:00 +0000 https://krtffl.dev/posts/docker-swarm-silent-drops/ Mon, 22 Jun 2026 00:00:00 +0000 https://krtffl.dev/posts/docker-swarm-silent-drops/ <p>picture the scene: green across the board. the deploy script ran all three of its pre-flight gates, <code>docker compose config</code> came back clean, <code>docker stack deploy</code> converged every service, and the post-deploy verifier printed a wall of <code>OK</code> in cheerful green. i closed the laptop.</p> <p>then, a day later, i went looking at postgres and found it running with the <em>default</em> <code>max_connections</code>, and no TLS, and none of the eighteen <code>-c</code> tuning flags i&rsquo;d very carefully written into the stack file. the flags were right there in the yaml. <code>docker compose config</code> printed them back to me, perfectly. and the running container had never seen a single one of them.</p>