mountopts

package
v26.1.2+incompatible Latest Latest
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Published: May 8, 2024 License: Apache-2.0 Imports: 1 Imported by: 0

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Constants

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Variables

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Functions

func UnprivilegedMountFlags

func UnprivilegedMountFlags(path string) ([]string, error)

UnprivilegedMountFlags gets the set of mount flags that are set on the mount that contains the given path and are locked by CL_UNPRIVILEGED. This is necessary to ensure that bind-mounting "with options" will not fail with user namespaces, due to kernel restrictions that require user namespace mounts to preserve CL_UNPRIVILEGED locked flags.

TODO: Move to github.com/moby/sys/mount, and update BuildKit copy of this code as well (https://github.com/moby/buildkit/blob/v0.13.0/util/rootless/mountopts/mountopts_linux.go#L11-L18)

Types

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