Healthy servers are boring in the best way: clear deploy paths, enough headroom, easy recovery, and no hidden surprises.
Use explicit deploy commands, stable working directories, and clear health checks. If another operator cannot tell what a deploy does, the setup is too implicit.
A brief CPU or load spike is normal during deploys, image pulls, builds, and backups. What matters more is sustained pressure or repeated degradation after deploys.
Healthy servers are not run permanently at the edge. Leave room in RAM, disk, and CPU so updates, restarts, and traffic bursts do not immediately become incidents.
Old images, exited containers, unused volumes, and temporary build leftovers quietly consume disk and can complicate rollback logic. Review them regularly.
A running container is weaker evidence than a passing app health check. Prefer real endpoints like `/health` when possible, and use port checks only as a fallback.
When env files, compose files, and proxy configs are easy to locate and reason about, recovery becomes faster and safer under pressure.
Unexpected reboots, unexplained low uptime, and silent container churn deserve investigation. Stability should come from maintenance, not luck.
The goal is not a perfect graph. The goal is a system where deploys are understandable, failures are visible, and recovery does not depend on memory or guesswork.