Stay beneath data dir / run dir when cleaning up paths during reset #5187
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The DirFD newtype around os.File provides methods for opening, statting and listing files or directories relative to a dirfd file descriptor. Provides robust handling of directory relative operations, maintaining directory access consistency across rename/move operations. Signed-off-by: Tom Wieczorek <twieczorek@mirantis.com>
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The current way of cleaning up the data directory is too simple to ensure that the recursive directory removal won't remove data that's not beneath it. Re-implement the recursive directory traversal in a way that won't cross mount points unintentionally, but unmounts everything recursively instead. Signed-off-by: Tom Wieczorek <twieczorek@mirantis.com>
Add a script to the reset integration test that tries to clutter the data directory by placing files and directories with odd permissions, adding symlinks to stuff outside the data directory, and adding bind mounts in various ways. This is to prove that k0's reset will never delete anything that is not beneath the data directory. Signed-off-by: Tom Wieczorek <twieczorek@mirantis.com>
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I have a simpler alternative #5193 |
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Description
The current way of cleaning up the data directory is too simple to ensure that the recursive directory removal won't remove data that's not beneath it.
Re-implement the recursive directory traversal in a way that won't cross mount points unintentionally, but unmounts everything recursively instead.
Add a script to the reset integration test that tries to clutter the data directory by placing files and directories with odd permissions, adding symlinks to stuff outside the data directory, and adding bind mounts in various ways. This is to prove that k0's reset will never delete anything that is not beneath the data directory.
Fixes #4318.
Type of change
How Has This Been Tested?
Checklist: