feat: Added connection_termination toggle to target group (#257)

Author: kitos9112

examples/complete-nlb/main.tf

@@ -107,11 +107,12 @@ module "nlb" {
 
   target_groups = [
     {
-      name_prefix        = "tu1-"
-      backend_protocol   = "TCP_UDP"
-      backend_port       = 81
-      target_type        = "instance"
-      preserve_client_ip = true
+      name_prefix            = "tu1-"
+      backend_protocol       = "TCP_UDP"
+      backend_port           = 81
+      target_type            = "instance"
+      connection_termination = true
+      preserve_client_ip     = true
       tags = {
         tcp_udp = true
       }

main.tf

@@ -70,6 +70,7 @@ resource "aws_lb_target_group" "main" {
   protocol_version = lookup(var.target_groups[count.index], "protocol_version", null) != null ? upper(lookup(var.target_groups[count.index], "protocol_version")) : null
   target_type      = lookup(var.target_groups[count.index], "target_type", null)
 
+  connection_termination             = lookup(var.target_groups[count.index], "connection_termination", null)
   deregistration_delay               = lookup(var.target_groups[count.index], "deregistration_delay", null)
   slow_start                         = lookup(var.target_groups[count.index], "slow_start", null)
   proxy_protocol_v2                  = lookup(var.target_groups[count.index], "proxy_protocol_v2", false)