L PlnExo Course

Docker Fast Track

Part A — Docker Foundations

Part B — Everyday Commands

Your First Container: docker run, -d, --name, --rm
Container Lifecycle: ps, stop, start, rm
Everyday Debugging: logs, exec, inspect
Managing Local Images: pull, images, rmi, and the Tag Question
Why Did My Container Die? Exit Codes & Restart Policies
One-Page Docker Cheat Sheet

Part C — Building Images

Your First Dockerfile: from FROM to CMD
Layers, Build Cache & .dockerignore — Fast, Lean Builds
Multi-stage Builds — Small Images Without the Drama
Tag & Push to Docker Hub
Dockerfile Best Practices — a Realworld Checklist

Part D — Data & Networking

Publishing Ports: -p, EXPOSE, and localhost
Environment Variables: -e, --env-file, and Secrets That Don't Belong in Images
Volumes — Data That Survives docker rm
Bind Mounts — Your Laptop's Folder Inside the Container
Networking Basics: bridge, User-defined Networks, and Container DNS
Multi-Container by Hand: App + Database Without Compose
Limit & Monitor: Memory, CPU, and Ballooning Logs
Disk Cleanup: system df & the prune Family

Part E — Docker Compose

Why Docker Compose & Your First compose.yaml
Everyday Compose Commands: up, down, logs, exec
Starting in the Right Order: depends_on + healthcheck
Environment & .env in Compose
Dev Workflow: watch, profiles, and Override Files

Part F — Real-world Workshop

Workshop Briefing: Meet Catatan Kilat
Containerize Catatan Kilat: Write Its Dockerfile
Compose It All: App + PostgreSQL End-to-End
Dev Loop & Data Persistence — Plus an Incident Drill
Hardening & Release: Multi-stage, Non-root, Push v1.0

Appendix

Glossary
Further References
Common Troubleshooting

Your First Container: docker run, -d, --name, --rm

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