Execute Host Commands Inside a Running Container
Leverage your knowledge of Linux namespaces to reach an application's internal debug interface without installing anything into the container.
Submissions: 357/819
Challenges
Focused hands-on problems designed to help you hone your DevOps or Server Side skills. Some challenges are more educational, while others are based on real-world scenarios. The platform provides hints and feedback for each challenge, including automated solution checks.
Official Collection
Challenges crafted by iximiuz Labs to help you master DevOps and Server Side topics.
Run a Sidecar Container in the Namespace of Another Container
Learn how to run multiple Docker containers sharing the same PID, IPC, and network namespaces - a foundation of many advanced container use cases, including Kubernetes Pods construction and container debugging tools.
Submissions: 160/320
Challenge, Medium, on
Docker 101: Create, Start, Pause, Unpause, Stop, Restart, Kill, and Remove a Container
Explore the key container management operations by walking through all the phases of the container lifecycle - from creation to termination and removal.
Submissions: 233/481
Challenge, Easy, on
Docker 101: Pause and Unpause a Containerized Application
Practice pausing and resuming a running container: start a resource-hungry container, pause it, inspect its state, and then unpause it back to life.
Submissions: 300/573
Community Collection
Challenges contributed by the community members sharing their knowledge and expertise.
Docker Scout: Remediating CVEs in a Container Image
by Felipe Cruz
Learn how to use Docker Scout to analyze and remediate vulnerabilities in a container image.
Submissions: 93/254