Secure a Container Registry with Authentication and TLS
Set up your own OCI-compatible container registry with username/password authentication and HTTPS - the kind of protection you'd expect before using a registry in production.
Submissions: 6/9
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.
Challenge, Medium, on
Run Your Own Container Registry
Stand up a self-hosted container registry so you can push and pull images without relying on a third-party registry. Useful for tests, internal services, air-gapped environments, or just for poking at the OCI Distribution API.
Submissions: 7/14
Challenge, Medium, on
Transfer Container Images to an Air-Gapped Environment
Get container images onto a server that has no route to the Internet or access to a container registry.
Submissions: 59/77
Challenge, Medium, on
Inspect a Container Image Without Pulling It
Explore the OCI image index, manifests, and configuration of a remote multi-platform image - without pulling a single byte of filesystem layers into the local Docker daemon.
Submissions: 26/32
Challenge, Medium, on
Inspect OCI Image Layout of Single- and Multi-Platform Images
Save container images as OCI layouts and explore the on-disk structure of single-platform (manifest-based) and multi-platform (index-based) images.
Submissions: 39/71
Challenge, Medium, on
Build and Push an Uncompressed Container Image
Learn how to build and publish an uncompressed container image - a helpful trick to optimize disk I/O for large images, especially when you can benefit from a fast internal network.
Submissions: 99/216
Challenge, Medium, on
Copy All Image Tags from One Repository to Another
Learn how to copy all image tags from one repository to another in an efficient way.
Submissions: 102/241
Challenge, Medium, on
Copy a Multi-Platform Image from One Repository to Another
Learn how to copy a multi-platform image from one repository to another using the docker manifest command or other, more convenient, tools like crane, skopeo, or regctl.
Submissions: 105/192
Challenge, Medium, on
Copy a Container Image from One Repository to Another - The Pro Way
Learn how to copy a container image from one repository to another without using Docker, Podman, or any other container runtime.
Submissions: 112/163