Whether the load balancer should treat this server as a backup unit. If {@code true}, the load balancer forwards no ingress traffic to this backend server unless all other backend servers not marked as "backup" fail the health check policy.
*Note:** You cannot add a backend server marked as {@code backup} to a backend set that uses the IP Hash policy.
Example: {@code false}
Whether the load balancer should drain this server. Servers marked "drain" receive no new incoming traffic.
Example: {@code false}
Whether the load balancer should treat this server as offline. Offline servers receive no incoming traffic.
Example: {@code false}
The load balancing policy weight assigned to the server. Backend servers with a higher weight receive a larger proportion of incoming traffic. For example, a server weighted '3' receives 3 times the number of new connections as a server weighted '1'. For more information on load balancing policies, see How Load Balancing Policies Work.
Example: {@code 3} Note: Numbers greater than Number.MAX_SAFE_INTEGER will result in rounding issues.
The configuration details for updating a backend server.