Zero-Downtime Deploys for Docker Apps on a Single VPS
How to swap Docker containers on one server without dropping requests: health checks, blue/green switching, graceful shutdown and safe schema changes.
Articles tagged: devops
Stop your AI agent from leaking keys or running rm -rf: a practical guardrail stack
Three layers: injection-fenced prompts, a bash safety linter, and a secret scan before anything leaves the box.
Run a Nostr relay that stays up: NIP-11 checks, systemd hardening and a backup you've actually restored
Health checks, a sandboxed systemd unit and a restore-tested restic backup for Nostr relays.
Moving cron jobs to systemd timers: a tested checklist
Translate schedules correctly (and the DOM/DOW trap), Persistent=, OnFailure= alerts, dead-man pings, user linger.
The Docker Image Is Gone: Running a Golem CPU Provider with Yagna 0.18
Every guide points to a Docker image that no longer exists. Here is the working path: deb-preseeding, the hidden runtime package, the socket fix, and the undocumented pricing coefficient names.