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This is way higher level than the container package and does not even work unless every path is mounted in the exact same location.
This behaviour causes nothing but confusion and problems,
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is less error-prone, and allows pathname to be checked once.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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There are significant limitations to using the overlay mount, and the implementation in the kernel is quite quirky. For now the Op is quite robust, however a higher level interface for it has not been decided yet.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This allows for more sophisticated test setup.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This restores verbose behaviour.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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The vm state is discarded often, and it is quite cumbersome to set everything up again when the shell history is gone.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is required for upperdir and workdir checks in overlayfs.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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The lowerdir is in the nix store.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This further reduces noise on test failure by only passing through output of the failed test.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This reduces noise on test failure.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is useful for quickly spinning up an ephemeral hakurei environment for testing changes or reproducing vm test failures.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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These literals were missed when the constants were first defined.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This increases readability since this can help disambiguate absolute paths from similarly named path segments.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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There is usually no good reason to write to /dev. This however doesn't work in internal/app because FilesystemConfig supplied by ContainerConfig might add entries to /dev, so internal/app follows DevWritable with Remount instead.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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There is no reason to mount mqueue anywhere else, and these Ops usually follow each other. This change merges them. This helps decrease IPC overhead and also enables mounting dev readonly.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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The mountTmpfs helper is a relatively low level function that is not exposed as part of the API. Prefixing sysroot here not only introduces overhead but is also quite error-prone.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is used for symlink resolution and is only used internally.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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For formatting user-supplied path strings into overlayfs mount data.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This improves code readability and should also be useful for callers choosing to preserve CAP_SYS_ADMIN.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This was never useful, and is now completely replaced by regular FilesystemConfig being able to mount tmpfs.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This does nothing for security, but should help avoid hiding bugs of programs developed in a hakurei container.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is useful for building a filesystem hierarchy then remounting it readonly.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Remount turns out to be useful in other places.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is a pd workaround that does nothing in the nixos module.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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There's often good reason to mount tmpfs in the container.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Doing this instead of mounting directly on / because it's impossible to ensure a parent is available for every path hakurei wants to mount to. This situation is similar to autoetc hence the similar name, however a symlink mirror will not work in this case.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This code is useful beyond just pd behaviour, and implementing it this way also reduces IPC overhead.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Planterette is now developed in another repository, so rename this proof of concept to avoid confusion.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This hopefully fixes the intermittent failures.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is not a general purpose setup Op. Separate it so it is easier to find.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is useful for programs that take a long time to clean up.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This significantly increases usability of command line tools running through hakurei.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This needs to be done from the Go side eventually anyway to integrate the signal forwarding behaviour now supported by the container package.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This allows container processes to exit gracefully.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This change also makes some parts of the test more robust.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Putting them on the builder methods is more useful.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is more elegant and allows for much easier extension of the tests. Mountinfo is still serialised however due to libPaths nondeterminism.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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