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.
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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.
Leverage your knowledge of Linux namespaces to reach an application's internal debug interface without installing anything into the 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.
Learn how to execute commands inside running containers using 'docker exec' - a crucial skill for debugging containerized applications and exploring container environments.
Can you resolve issues with a Node.js container's termination process to ensure graceful shutdown on 'docker stop'?
Can you make a container exit gracefully after the 'docker stop' command while preserving its extensible entrypoint mechanism?
An ultimate Kubernetes debugging challenge: can you copy files to/from a running Pod that doesn't have a shell or other command line tools installed?
Practice copying files to/from running Kubernetes Pods to become a Kubernetes troubleshooting ninja.
Practice copying files to/from running containers to become a container troubleshooting wizard.
Can you unpack the filesystem of a container image into a local directory?
Practice your container debugging skills by editing a file in a running container.