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tutor/changelog.d/20240531_094930_kyle_assets_link.md
Kyle McCormick cf6ac56a13
perf: use COPY --link to increase Docker cache hit frequency (#1073) 
The --link flag is a feature of Docker BuildKit which tells Docker to
treat the COPY'd layer independently of previous layers, enabling more
aggressive build caching. For more details, see this Docker blog post [1].

When using COPY --link to copy files from a stage that does not contain
/etc/passwd, we must --chown with $APP_USER_ID rather than app.
Otherwise, the build would fail with "unknown user id".

[1] https://www.docker.com/blog/image-rebase-and-improved-remote-cache-support-in-new-buildkit/
2024-06-05 10:17:06 -04:00

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  • [Improvement] Made Docker cache hits more frequent during the openedx image build via BuildKit's COPY --link feature (by @kdmccormick).