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Docker 101: Override Default Container Commands and Arguments
Run a container using the 'docker run' command, overriding the default container command and arguments.
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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.
Run a container using the 'docker run' command, overriding the default container command and arguments.
Practice starting containers in "detached" mode, leaving them running in the background, reading their logs, and re-attaching to them.
Run a container using the 'docker run' command. That's it - that's the challenge.
Practice installing Docker on Fedora and learn about the different components that make up Docker Engine.
Practice installing Docker on Debian and learn about the different components that make up Docker Engine.
Practice installing Docker on Ubuntu and learn about the different components that make up Docker Engine.
Can you resolve issues with a Node.js container's termination process to ensure graceful shutdown on 'docker stop'?
Learn how to leverage Docker to copy a container image from one repository to another.
Learn how to perform one of the most basic Docker operations - build and publish a container image.
Prove your SRE skills - deploy a resource-greedy application to a Kubernetes cluster and make it run for a while without disrupting the service.
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.
Practice your container debugging skills by editing a file in a running container.
Learn how to send a signal to an application running as a Kubernetes pod.
Explore how nerdctl tries to look like Docker when it comes to UX. Are containers started with nerdctl any different from those started with Docker š³?
Start a container using an alternative container runtime - Podman. Shouldn't be too hard if you already know how to start a container with Docker š³
Perform the most fundamental Docker operation - start a container. Sounds too easy? Be ready to also answer a few tricky questions about it!
Learn how to create fully isolated virtual network environment using Linux network namespaces.
Learn how to label container images using the ctr command.
Learn how to pull container images from different registries using the ctr command.
Learn how to tag and push container images to a remote registry using the ctr command.
Learn how to work with containerd namespaces using the ctr command-line client.