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Docker guides
Hands-on guides that cover Docker. Every command is run and verified on a live server before it is published.
GuideYour First Container
A beginner guide to Docker on a VPS: run your first container in one command and learn the image versus container difference that trips people up.
GuideBuilding Your App's Image
Package a Node app into a small, non-root Docker image. Build it with a Dockerfile and learn why layer caching and COPY order decide rebuild speed.
GuideA Real Stack with Compose
Describe your whole stack, the app plus a Postgres database, in one Docker Compose file. Bring it up with one command and connect services by name.
GuideCompose in Production
Take a Docker Compose stack to production: restart policies, resource limits, HTTPS out front, and the security defaults that contain a container breach.