Disable DHCP proxy in dnsmasq
Dnsmasq is used as either a DHCP server or DHCP proxy server for PXE metal provisioning.
Proxy mode is enabled by default allowing the use of existing DHCP servers on the network. A good description on how DHCP Proxy works can be found on the related FOG project wiki page.
Disabling Proxy mode
Certain scenarios will require this project to use a DHCP server, such as an air-gap deployment or dedicated VLAN.
To disable proxy mode thereby using dnsmasq as a DHCP server, modify
metal/roles/pxe_server/defaults/main.yml and set