Containerization, multi-stage builds, and Compose orchestration
Learn how to package, optimize, and orchestrate containers with Docker, Docker Compose, volume storage, networking, and security best practices.
Curriculum
Complete chapters in sequence to master the curriculum.
Understanding containers vs VMs, Dockerfiles, and image caching.
Discover how Docker leverages core Linux concepts like namespaces, cgroups, and union filesystems to power containerization without virtual machines.
Learn how to use docker build --no-cache effectively, when it helps, what it doesn't fix, and performance trade-offs.
Learn the core differences between Docker images and containers with a simple mental model, practical CLI commands, and essential best practices.
Learn the core difference between Docker images and containers with a simple recipe analogy, practical CLI examples, and clear definitions.
Compare Docker containers and virtual machines across isolation, startup time, resource usage, security, and real-world deployment use cases.
Learn practical Dockerfile practices to create smaller, faster, more secure, and highly maintainable container images for production.
Learn how to view, filter, and troubleshoot container output with the docker logs command, including useful flags, architecture insights, and best practices.
Learn how to use docker build no cache to rebuild container images fresh, bypass stale dependencies, and troubleshoot build issues effectively.
Volumes, bind mounts, multi-container networks, and compose setups.
Learn how Docker volumes work, from creation and mounting to Compose configurations, safe pruning, and production troubleshooting.
Learn how to manage Docker Compose environment variables effectively, including .env files, interpolation, precedence, shell variables, security, and troubleshooting.
Container lifecycles, Healthchecks, log inspection, and cleanup.
Master docker compose down, understand what it removes, explore flags like -v and --rmi, and learn how to safely manage your container lifecycles.
A comprehensive guide to Docker HEALTHCHECK. Learn how to configure health checks in Dockerfiles and Compose, check health status, and troubleshoot unhealthy containers.
Learn how Docker Compose networking handles service discovery, custom networks, ports, expose, and troubleshooting for modern multi-container applications.
Learn how to inspect, follow, filter, and troubleshoot logs from Docker Compose services with practical commands and real-world examples.