Whether the network load balancer should treat this server as a backup unit. If {@code true}, then the network load balancer forwards no ingress traffic to this backend server unless all other backend servers not marked as "isBackup" fail the health check policy.
Example: {@code false}
Whether the network load balancer should drain this server. Servers marked "isDrain" receive no incoming traffic.
Example: {@code false}
Whether the network 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 three times the number of new connections as a server weighted '1'. For more information about load balancing policies, see How Network 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.