Air-Gap Transfer

Move an image to a network-less site with save and load.

A intermediate Docker challenge worth 10 points. Solve it hands-on in a real Docker environment in your browser - no local setup, no fake shells.

The Challenge

Scenario: The factory floor has NO network — images travel on a USB stick. Rehearse the transfer of sensor-agent:3.2.

Tasks:

• docker save the image to /root/transfer/sensor-agent.tar
• Simulate the receiving side: remove the local image, then restore it from the tar with docker load
• sensor-agent:3.2 must exist again at the end

Commands to learn: docker save -o, docker load -i, docker rmi

Run check when done.