Comment 1 for bug 1664294

5) the change uses pyroute2.netns.setns in [3] which moves the current process to a specific netns
** it seems that when we enter the netns, the process seems to never go back in the root netns[9]. Is it an acceptable limitation?
** When the process is in a netns, every network action is done in the netns including rpc calls, remote sylog which won't work because they should be done in the root namespace.

Actually the netns we set is only on the oslo.rootwrap process mode. So it doest not affect to rpc calls, remote syslog.