A small library to manage network namespace in Linux. Taken from cri-o,
runc and vishvananda/netns.
make test
The library can be safely used only with Go >= 1.10 due to golang/go#20676.
After locking a goroutine to its current OS thread with runtime.LockOSThread()
and changing its network namespace, any new subsequent goroutine won't be
scheduled on that thread while it's locked. Therefore, the new goroutine
will run in a different namespace leading to unexpected results.
See here for more details.