Tag: containers

Trivy + Cosign: Scan and Sign Your Images

You're pulling container images from strangers on the internet. Trivy scans them for CVEs. Cosign proves they haven't been tampered with. Use both.

Docker BuildKit: Stop Building Images the Slow Way

Cache mounts, secret mounts, parallel stages — BuildKit turns your Dockerfile from a slow linear disaster into something that actually respects your time.

Podman Quadlets: Systemd-Native Containers

Podman Quadlets turn containers into real systemd services using .container unit files — no daemon, no hacks, just clean native integration.

Rootless Docker: Run Without Root

Run Docker containers without root privileges — here's the security difference, the install steps, and the gotchas nobody tells you about.

Docker Networking Demystified

Docker networking confuses everyone at first. Here's the practical breakdown of bridge, host, overlay, and macvlan — with real Compose examples.

Lazydocker & Dive: Fix Your Docker CLI

Learn how lazydocker and dive make Docker manageable from your terminal. TUI dashboards, image layer analysis, CI integration, and optimization tips.

ctop and lazydocker: Docker Monitoring Tools

Forget docker stats. ctop and lazydocker give you real-time container insights with less friction than typing commands.

Private Docker Registry with Harbor

Stop letting Docker Hub throttle your CI/CD. Run Harbor for RBAC, Trivy scanning, image replication, and a real UI — on infrastructure you control.

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.