The userns package in libcontainer was integrated into the moby/sys/user
module at commit [3778ae603c706494fd1e2c2faf83b406e38d687d][1].
This patch deprecates the containerd fork of that package, and adds it as
an alias for the moby/sys/user/userns package.
[1]: 3778ae603c
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
We have quite a few pieces of code laying around containerd
that all loop and ignore eintr as they make syscalls directly
(or use a unix/syscall wrapper) because there's no stdlib
equivalent. This adds a small utility to pkg/sys that we can
use for all of these spots.
Signed-off-by: Danny Canter <danny@dcantah.dev>
