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RFC: Add support for overlay maps#106

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maleadt wants to merge 11 commits intoJuliaContainerization:mainJuliaContainerization/Sandbox.jl:mainfrom maleadt:overlay_mapsmaleadt/Sandbox.jl:overlay_mapsCopy head branch name to clipboard

+163-67

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Commits on Nov 21, 2022

• User-namespace sandbox: Mount (read-only) maps as overlays to support modifications.

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• Simplify overlay mounting: use /root, not /proc.

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• Use the host overlay dir for the workddir too.

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• Work around JuliaLang/julia#47650.

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Commits on Nov 23, 2022

• Simplify things: just mount read-only maps as mutable overlays.

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• Handle overlayfs mounts of files.

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Commits on Nov 25, 2022

• Emulate overlay-based maps on Docker using an entrypoint script.

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• Use a host persistence dir for overlaying read-only maps.

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• Mount an explicit tmpfs to work around failure to mount overlayfs in the rootfs.

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Commits on Nov 28, 2022

• Encompass executor testsets in another testset.

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• Entrypoint improvements.

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