+ sample configs for nginx-proxy lxc instance

+ site_name as general option for different lxc_host and site_name (personally used for vps deployment)
+ vps deploy script
+ node version manager install
+ php version setup vars moved into separate vars-file
+ ansible.cfg that helps to use local inventory and group_vars files
+ root account playbook

group_vars/all.yml

@@ -6,4 +6,7 @@ remote_user: root
 keyring__keyserver: hkp://keyserver.ubuntu.com:80
 # Add further variables which apply to all servers to this file...
 
+secret__levels: '.'
+
+site_name: '{{ site_name | d(lxc_host) }}'
 ...