rootless is used in katautils, cli and virtcontainers. It makes more sense
if it's part of virtcontainer, this way virtcontainers won't depend on other
runtime subpackages
Signed-off-by: Julio Montes <julio.montes@intel.com>
When kata-runtime was invoked as rootless by podman with
net=none, an empty net namespace path is provided.
kata-runtime was then trying to create a new network namespace
and bind-mounting it under /var/run/netns, resulting in a permission error.
Instead, with this commit, the runtime checks if it is
running rootless and instead creates network namespace bind mount
under rootless directory instead.
Fixes#2319
Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
