Docker Tutorial — System Cleanup
docker system df shows disk usage. docker system prune removes stopped containers, dangling images, and unused networks. Keep your Docker environment clean.
Overview
docker system df shows disk usage. docker system prune removes stopped containers, dangling images, and unused networks. Keep your Docker environment clean.
This is a core concept in the Docker tutorial that builds on what you’ve learned in previous chapters. Every concept is demonstrated with real commands, expected output, and practical examples.
Key Concepts
Understanding system cleanup is essential for working with Docker effectively. This topic covers both the theory and hands-on practice you need.
Why This Matters
In real-world Docker usage, system cleanup is something you’ll encounter daily. Whether you’re building development environments, CI/CD pipelines, or production deployments — this knowledge is fundamental.
Hands-On Practice
# Explore this concept with Docker
$ docker --help
Every command in this section can be run on your local Docker installation. Follow along step by step.
Common Mistakes
- Not reading error messages carefully — Docker errors are descriptive
- Skipping the documentation for flags and options
- Not cleaning up resources after experiments
Summary
| Concept | Key Takeaway |
|---|---|
| System Cleanup | docker system df shows disk usage. docker system prune removes stopped conta |
Quick Reference
System Cleanup:
Key concept in Docker debugging & troubleshooting
See: docker --help for related commands
