Ref: http://www.lowefamily.com.au/2016/06/02/installing-ubiquiti-unifi-controller-5-on-raspberry-pi/2/
Install Raspbian Jessie Lite : http://www.lowefamily.com.au/2015/06/11/installing-raspbian-on-raspberry-pi/2/
Disable Wifi / BT: http://raspberrypi.stackexchange.com/questions/43720/disable-wifi-wlan0-on-pi-3
Set Static IP on Ethernet port: https://www.modmypi.com/blog/tutorial-how-to-give-your-raspberry-pi-a-static-ip-address
Also for Static IP: https://www.modmypi.com/blog/how-to-give-your-raspberry-pi-a-static-ip-address-update