Docker

Registry-backed build cache in Docker

DockerBuildKit & BuildxCache exportadvanced

What this snippet does

Exporting the cache to a registry lets ephemeral CI runners reuse layers between jobs.

Expected output

=> CACHED [build 3/6] RUN npm ci

Why practise typing this

Typing buildkit & buildx code builds muscle memory for the symbols and indentation Docker uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.

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