Docker and CI/CD · Middle · Question 49 of 75

Why tag images with the commit SHA?

1It makes the image smaller than a version tag
2Registries require a hash in every tag name
✓Correct answer: Each image maps to exact code and is never overwritten

Explanation

my-app:3f2a9c1 tells you what's running and makes rollbacks precise. Version tags like 1.4.0 can be added for releases.

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