Private Registry

Run a local registry, then tag and push an image to it.

A advanced Docker challenge worth 20 points. Solve it hands-on in a real Docker environment in your browser - no local setup, no fake shells.

The Challenge

Scenario: Your datacenter is air-gapped — no Docker Hub. CI needs a private registry to distribute the inventory:1.0 image (already built locally).

Tasks:

• Run the registry:2 image as registry, publishing 5000 → 5000
• Tag inventory:1.0 as localhost:5000/inventory:1.0 and push it
• Verify in the browser panel: localhost:5000/v2/_catalog

Commands to learn: docker tag, docker push, the registry HTTP API

Run check when done.