Challenge, Easy, on
List All Tags in a Container Repository
Practice discovering what has been published to a remote container repository by listing its tags using crane, regctl, or a direct call to the registry HTTP API.
Submissions: 76/106
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.
Challenge, Easy, on
Docker 101: Authenticate to Private Container Registries
Practice using docker login to authenticate against multiple private container registries with different credentials, then pull and push images across them.
Submissions: 117/129
Challenge, Easy, on
Docker 101: Tag and Push Container Images to Registries
Re-tag local container images with fully-qualified references and publish them to different registries using the 'docker tag' and 'docker push' commands.
Submissions: 120/146
Challenge, Easy, on
Docker 101: Pull a Container Image for a Specific Platform
Pull a container image built for a non-native CPU architecture using the 'docker pull --platform' flag.
Submissions: 129/143
Challenge, Easy, on
Docker 101: Pull a Container Image by Digest
Practice pulling a container image using an immutable digest reference instead of a mutable tag.
Submissions: 141/160
Challenge, Easy, on
Docker 101: Pull Container Images from Different Registries
Pull container images using the 'docker pull' command and explore how the image name determines its source registry and repository.
Submissions: 184/204
Deploy a Pod with a Container Image from a Private Registry
Practice configuring Kubernetes to pull images from a private registry and run Pods with authenticated registry access.
Submissions: 430/759
Challenge, Easy, on
Build and Publish a Container Image With Docker
Learn how to perform one of the most basic Docker operations - build and publish a container image.
Submissions: 1066/1565
Challenge, Easy, on
Copy a Container Image from One Repository to Another with Docker
Learn how to leverage Docker to copy a container image from one repository to another.
Submissions: 553/713
Challenge, Easy, on
Pull Container Images Using ctr
Learn how to pull container images from different registries using the ctr command.
Submissions: 368/491