6.4.4 Load balancer

Built upon an Ubuntu image, the Load Balancer runs NGINX service for actual load balancing and a python script acting as the LB API, which is responsible of replacing the nginx configuration based on updates received from DBwriters in regards to database writer mastership. By doing so, once a database becomes most updated than the other, the load balancer configuration is changed so that new data retrieval corresponds to the most up to date.