Tutorials

Deep dives into DevOps and server-side topics, combining theory with hands-on examples. Run every command in an attached remote playground, from your browser or local terminal over SSH — no setup required.

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How Container Registries Work: Pushing and Pulling Images By Hand

Container registries look simple until you need to debug what was actually pushed, why a pull picked the wrong image, or why deleting a tag didn't remove anything. Learn how registries work by pushing, pulling, inspecting, and deleting image data directly through the Registry API.

How Container Registries Work: Pushing and Pulling Images By Hand (cover image)