The server, map and upstream directives can be splitted into
different files to be included into the nginx.conf configuration.

We decided to split the reverse proxy configuration from one file to
three different files. One is the http configuration and the remaining
are the https configuration.

The dokuwiki configuration file was misplaced and the playbook
couldn't find it when creating a new istance of the wiki.

With the transition to the new ninux-compatible network we choose to
have a ip pool for vm that resides on the 10.150.42 network.
As 254 unique addresses are sufficient for our need we reduce the subnet
to a /24