Summary

In this chapter, we explored how to interact with container registries, which are the fundamental storage services for our images. We started with a high-level description of what a container registry is and how it works and interacts with our container engines and tools. We then moved on to a more detailed description of the differences between public, cloud-based registries and private registries, usually executed on-premises. It was especially useful to understand the benefits and limitations of both and to help us to understand the best approach for our needs.

To manage container images on registries, we introduced the Skopeo tool, which is part of the Podman companion tools family, and illustrated how it can be used to copy, sync, delete, or simply inspect images over registries, giving users a higher degree of control over their images.

Finally, we learned how to run a local containerized registry using the official community image of the Docker Registry v2. After...