Tag: docker

Distroless: How to Build Slim, Secure Containers

Distroless images contain only your app and its runtime — no shell, no package manager, no attack surface. Here's how to build them.

Multi-Stage Docker Builds: Stop Shipping Your node_modules to Production

Learn multi-stage Docker builds to slash image sizes by 90%. Practical before/after examples for Node.js, Python, and Go with real size comparisons.

Traefik: Docker Routing with Labels

Master Traefik's label-based routing in Docker: entrypoints, routers, middlewares, TLS, and the mental model that makes it all click.

Docker BuildKit: Stop Waiting for Your Images to Build

Docker BuildKit is the default builder since Docker 23.0 — but most people aren't using it right. Here's how to actually speed up your builds.

Nginx Proxy Manager for Normal Humans

Set up Nginx Proxy Manager in Docker, get SSL certs, proxy hosts, access lists, and TCP streams — without reading a 40-page nginx manual.

Healthcheck vs Restart Policy: The Difference Matters

Your container crashes and restarts. Your app is broken but says it's healthy. These are two different problems. Here's the distinction.

Nginx: The Config That Makes Sense

Nginx config demystified: server blocks, location matching, proxy_pass gotchas, rate limiting, and Docker Compose setup — with working examples.

Watchtower vs Diun: Automating Docker Updates Without Burning Your Stack

Compare Watchtower and Diun for Docker container updates. Learn which auto-update tool fits your homelab with Compose examples, notifications, and filtering tips.

Uptime Kuma: Status Pages, Alerts, and Knowing Before Your Users Do

Advanced Uptime Kuma setup: TCP/DNS/Docker monitors, push monitors, Telegram alerts, public status pages, maintenance windows, and Docker Compose with backups.

Watchtower: Safe Container Auto-Updates

Tired of manually updating containers? Watchtower handles it. But if you set it wrong, you'll wake up to broken apps. Here's how to do it right.

Docker Health Checks: Because "It's Running" Doesn't Mean "It's Working"

Docker health checks for Dockerfiles and Compose: configure HEALTHCHECK for PostgreSQL, Redis, Nginx, and Node.js with intervals, retries, and depends_on.

Prometheus + Grafana on Docker: Know When Your Server Is Crying Before It Dies

Set up a self-hosted Prometheus and Grafana monitoring stack with Docker Compose. Stop flying blind — get metrics, dashboards, and alerts in under 30 minutes.