Tutorials
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Tutorial
Docker Compose Resource Limits, Healthchecks, and Restart Policies
Your Compose file works in dev but is not production-ready. Learn how to add memory/CPU limits, healthchecks, restart policies, and startup ordering to protect your VPS from OOM kills and cascading failures.
12 min readRead →
Tutorial
Docker Security Hardening: Rootless Mode, Seccomp, AppArmor on a VPS
Seven hardening layers for Docker on a VPS. Each section explains the threat, shows the fix with CLI and Compose syntax, and verifies it works.
14 min readRead →
Tutorial
Docker Update Strategy: Zero-Downtime Container Updates on a VPS
Four escalating methods to update Docker containers on a VPS, from simple pull-and-replace to zero-downtime blue-green deployments with Traefik. Covers image pinning, rollback procedures, Diun notifications, and docker-rollout.
11 min readRead →