So instead of the defined list that [1] was for it now tries to preserve al
lmounts under /dev.
Since we can't know all the combinations that might be, but trust libvirt with
a rather lenient profile anyway lets tweak the rules to match what it does now.
While doing so it might carry a trailing / from the mountpoint.
E.g. /dev/hugepages/ is used with trailing /, but /dev/console is not.
So allow both.
Further libvirt will strip the mount to a simple pathname without subdirs.
For example:
/dev/net/tun -> /var/run/libvirt/qemu/1-kvmguest-cosmic-norm.net.tun
Therefore an appropriate and in tests working rule would be:
# libvirt provides any mounts under /dev to qemu namespaces
mount options=(rw, move) /dev/ -> /{var/,}run/libvirt/qemu/*.dev/,
mount options=(rw, move) /dev/**{/,} -> /{var/,}run/libvirt/qemu/*{/,},
mount options=(rw, move) /{var/,}run/libvirt/qemu/*.dev/ -> /dev/,
mount options=(rw, move) /{var/,}run/libvirt/qemu/*{/,} -> /dev/**{/,},
[1]:
https://libvirt.org/git/?p=libvirt.git;a=commit;h=3343ab0cd99c04761c17a36d9af354536df9e741
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https://bugs.launchpad.net/bugs/1786168
Title:
qemu mount namespaces conflict with libvirt 4.6
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