Promote the Build

Retag a CI build the way release pipelines do.

A beginner Docker challenge worth 3 points. Solve it hands-on in a real Docker environment in your browser - no local setup, no fake shells.

The Challenge

Scenario: CI produced webapp:build-4821 and QA signed it off. Promote it.

Tasks:

• Tag the image as webapp:stable AND webapp:1.0
• Remove the temporary webapp:build-4821 tag — the image itself must survive (removing one tag never deletes an image that has others)

Commands to learn: docker tag, docker rmi <tag>, image IDs vs tags

Run check when done.