Skill Path on
Docker 101: Run and Manage Containers
Go from zero to a confident Docker beginner. Learn how to run containers of all kinds, interact with them, and build a clear mental model of how Docker manages your applications behind the scenes.
Skill Paths
Ultra-focused learning series combining practical challenges, concise theory, and visual explanations. Each path helps you build or sharpen a specific skill, such as working with Linux storage, running containers, or building images.
Skill Path on
Docker 101: Build Container Images
Learn how to write Dockerfiles from scratch and build production-ready container images. Start with the basics of image building and progress through handling dependencies, compiling applications, inspecting image internals, and optimizing builds with multi-stage Dockerfiles. Then go deeper with advanced Dockerfile instructions, analyzing image internals, and producing multi-platform builds.
Skill Path on
Docker 101: Pull and Push Container Images
Learn how to move container images between your machine and container registries. Practice pulling images by tag, digest, and platform; tagging and pushing them to public and private registries; mirroring images across repositories; shipping images into air-gapped environments; and publishing multi-platform images.
Skill Path on ,
Beyond Docker: Run Containers Across Runtimes
Explore how different container runtimes - Docker, Podman, nerdctl, ctr, and runc - execute containers. Compare their UX, architecture, and impact on containerized applications.
Skill Path on , ,
Master Container Networking
Do you want to troubleshoot container and Kubernetes networking issues like a true expert? This is a highly practical learning path that will take you from the basics of container networking like creating a network namespace, to more complex topics like configuring a bridge network and using iptables to set up network address translation (NAT) and port forwarding.
Skill Path on ,
Build Container Images Like a Pro
Practice building container images, choosing the right base image, organizing multi-stage Dockerfiles, and troubleshooting common issues caused by flawed image composition.
Skill Path on
Copy Container Images Like a Pro
Practice copying container images from one repository to another using the docker, crane, skopeo, and regctl tools.
Skill Path on , ,
Get Started with Linux Control Groups (cgroup v2)
Start by learning how to limit process resources in Linux using cgroups—from the most basic, hands-on cgroupfs manipulation to the more convenient systemd-run command. Then, explore how Docker and Kubernetes leverage cgroups to control the resource usage of containers and pods.
Skill Path on , ,
Get Started with Dagger
Learn how to install Dagger and write the first modules to build, test, and deploy your application.