* Add nss-lookup to the systemd wants to ensure DNS is running before starting nebula
* Add Ansible & example service scripts
* Fix#797
* Align Ansible scripts and examples
Co-authored-by: John Maguire <contact@johnmaguire.me>
During shutdown, this will keep Nebula alive until after sshd is finished. This cleanly terminates ssh clients accessing a server over a Nebula tunnel.