Tag: containers

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.

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.

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.

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.

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.

Docker Logging: From "Where Did My Logs Go?" to Centralized Bliss

Learn Docker logging from basics to centralized stacks. Master docker logs, logging drivers, log rotation, Loki+Grafana, and Fluentd setup with practical examples.

Why Self-Hosted Apps Lose Data After Updates

You updated your container and your database is gone. Here's the volume permission mistake killing your data.

Docker Security Hardening: 15 Things You're Doing Wrong Right Now

Stop running Docker containers like it's the Wild West. Learn 15 critical Docker security mistakes and practical fixes to harden your containers today.

Portainer vs Dockge: Managing Containers Without the Terminal

Portainer vs Dockge: two Docker GUIs for managing containers without the terminal. We compare features, setup, and which fits your self-hosting style.

Docker Volumes vs Bind Mounts: Where Your Data Actually Lives

Docker volumes vs bind mounts explained: named volumes, anonymous volumes, bind mounts, and tmpfs. Real examples for databases, dev workflows, and production.