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alanshaw
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Apr 21, 2026
| FROM build AS build-prod | ||
| RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} \ | ||
| RUN --mount=type=cache,target=/go/pkg/mod \ | ||
| --mount=type=cache,target=/root/.cache/go-build \ |
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Can you explain what's going on here? Is this caching twice? Why is that?
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It's caching two directories: the dependency cache and the build cache. This means it doesn't have to re-download modules every build, and it…builds faster? I'm not sure how the build cache works, but apparently it can cache bits of the build.
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