Comment 5 for bug 1546798

OK, I found a workaround for my problem. Before running deployment. I should run this command first.

 sudo mkdir -p /run/netns && sudo mount -o rw,relatime -t tmpfs tmpfs /run/netns && sudo mount --make-rshared /run

@Sam Yaple, this seems more reliable than simply run "mount --make-shared /run". do you think it is a good idea to incorporate this into the ubuntu playbook? Do you want me to upate the document?