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02.Version cache - docker cache build framework
During docker build, host files can be passed to the docker build through docker context files. But there is no straightforward way to transfer the files from docker build to host. This feature provides a tricky way to pass the cache contents from docker build to host. It uses the multi-stage docker file to copy the cache content, cleanup the temporary files and creates the final sonic docker image.
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Original file line number | Diff line number | Diff line change |
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# Base docker build | ||
FROM {{IMAGENAME}} | ||
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# Copy the cache data to host | ||
From scratch as output | ||
COPY --from={{IMAGENAME}} /cache.tgz cache.tgz | ||
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# Clean up the cache data | ||
FROM {{IMAGENAME}} as final | ||
RUN rm /cache.tgz | ||
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