Fixed cloudflare network mode

Added additional nextcloud configuration and redis cache

Added DLNA role to create a public media share

Renamed secrets file

cloudflare: new role
used to setup cloudflare tunnel docker container,
with provided token
NOTE: domain configuration has to be done in the cloudflare zero trust
dashboard

nextcloud: initial support on port 8080

Added logo
licensed CC-BY-SA

Initial commit,
pulling the base system setup from my VPS infra setup