Docker and CI/CD · Middle · Question 12 of 75

What does BuildKit do with independent stages of a multi-stage build?

1Builds them strictly one after another in file order
2Merges them into one stage to reduce the number of layers
✓Correct answer: Builds them in parallel and skips stages the target doesn't need

Explanation

BuildKit builds a dependency graph of stages. A test stage that the final target doesn't depend on isn't built unless you target it.

Further reading

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