fix: Update load_balancing_cross_zone_enabled variable to accept string instead of bool (#417)

Author: tomhnag

README.md

@@ -436,7 +436,7 @@ No modules.
 | <a name="input_subnet_mapping"></a> [subnet\_mapping](#input\_subnet\_mapping) | A list of subnet mapping blocks describing subnets to attach to load balancer | <pre>list(object({<br/>    allocation_id        = optional(string)<br/>    ipv6_address         = optional(string)<br/>    private_ipv4_address = optional(string)<br/>    subnet_id            = string<br/>  }))</pre> | `null` | no |
 | <a name="input_subnets"></a> [subnets](#input\_subnets) | A list of subnet IDs to attach to the LB. Subnets cannot be updated for Load Balancers of type `network`. Changing this value for load balancers of type `network` will force a recreation of the resource | `list(string)` | `null` | no |
 | <a name="input_tags"></a> [tags](#input\_tags) | A map of tags to add to all resources | `map(string)` | `{}` | no |
-| <a name="input_target_groups"></a> [target\_groups](#input\_target\_groups) | Map of target group configurations to create | <pre>map(object({<br/>    connection_termination = optional(bool)<br/>    deregistration_delay   = optional(number)<br/>    health_check = optional(object({<br/>      enabled             = optional(bool)<br/>      healthy_threshold   = optional(number)<br/>      interval            = optional(number)<br/>      matcher             = optional(string)<br/>      path                = optional(string)<br/>      port                = optional(string)<br/>      protocol            = optional(string)<br/>      timeout             = optional(number)<br/>      unhealthy_threshold = optional(number)<br/>    }))<br/>    ip_address_type                    = optional(string)<br/>    lambda_multi_value_headers_enabled = optional(bool)<br/>    load_balancing_algorithm_type      = optional(string)<br/>    load_balancing_anomaly_mitigation  = optional(string)<br/>    load_balancing_cross_zone_enabled  = optional(bool)<br/>    name                               = optional(string)<br/>    name_prefix                        = optional(string)<br/>    port                               = optional(number)<br/>    preserve_client_ip                 = optional(bool)<br/>    protocol                           = optional(string)<br/>    protocol_version                   = optional(string)<br/>    proxy_protocol_v2                  = optional(bool)<br/>    slow_start                         = optional(number)<br/>    stickiness = optional(object({<br/>      cookie_duration = optional(number)<br/>      cookie_name     = optional(string)<br/>      enabled         = optional(bool)<br/>      type            = string<br/>    }))<br/>    tags = optional(map(string))<br/>    target_failover = optional(list(object({<br/>      on_deregistration = string<br/>      on_unhealthy      = string<br/>    })))<br/>    target_group_health = optional(object({<br/>      dns_failover = optional(object({<br/>        minimum_healthy_targets_count      = optional(string)<br/>        minimum_healthy_targets_percentage = optional(string)<br/>      }))<br/>      unhealthy_state_routing = optional(object({<br/>        minimum_healthy_targets_count      = optional(number)<br/>        minimum_healthy_targets_percentage = optional(string)<br/>      }))<br/>    }))<br/>    target_health_state = optional(object({<br/>      enable_unhealthy_connection_termination = bool<br/>      unhealthy_draining_interval             = optional(number)<br/>    }))<br/>    target_type = optional(string)<br/>    target_id   = optional(string)<br/>    vpc_id      = optional(string)<br/>    # Attachment<br/>    create_attachment = optional(bool, true)<br/>    availability_zone = optional(string)<br/>    # Lambda<br/>    attach_lambda_permission  = optional(bool, false)<br/>    lambda_qualifier          = optional(string)<br/>    lambda_statement_id       = optional(string)<br/>    lambda_action             = optional(string)<br/>    lambda_principal          = optional(string)<br/>    lambda_source_account     = optional(string)<br/>    lambda_event_source_token = optional(string)<br/>  }))</pre> | `null` | no |
+| <a name="input_target_groups"></a> [target\_groups](#input\_target\_groups) | Map of target group configurations to create | <pre>map(object({<br/>    connection_termination = optional(bool)<br/>    deregistration_delay   = optional(number)<br/>    health_check = optional(object({<br/>      enabled             = optional(bool)<br/>      healthy_threshold   = optional(number)<br/>      interval            = optional(number)<br/>      matcher             = optional(string)<br/>      path                = optional(string)<br/>      port                = optional(string)<br/>      protocol            = optional(string)<br/>      timeout             = optional(number)<br/>      unhealthy_threshold = optional(number)<br/>    }))<br/>    ip_address_type                    = optional(string)<br/>    lambda_multi_value_headers_enabled = optional(bool)<br/>    load_balancing_algorithm_type      = optional(string)<br/>    load_balancing_anomaly_mitigation  = optional(string)<br/>    load_balancing_cross_zone_enabled  = optional(string)<br/>    name                               = optional(string)<br/>    name_prefix                        = optional(string)<br/>    port                               = optional(number)<br/>    preserve_client_ip                 = optional(bool)<br/>    protocol                           = optional(string)<br/>    protocol_version                   = optional(string)<br/>    proxy_protocol_v2                  = optional(bool)<br/>    slow_start                         = optional(number)<br/>    stickiness = optional(object({<br/>      cookie_duration = optional(number)<br/>      cookie_name     = optional(string)<br/>      enabled         = optional(bool)<br/>      type            = string<br/>    }))<br/>    tags = optional(map(string))<br/>    target_failover = optional(list(object({<br/>      on_deregistration = string<br/>      on_unhealthy      = string<br/>    })))<br/>    target_group_health = optional(object({<br/>      dns_failover = optional(object({<br/>        minimum_healthy_targets_count      = optional(string)<br/>        minimum_healthy_targets_percentage = optional(string)<br/>      }))<br/>      unhealthy_state_routing = optional(object({<br/>        minimum_healthy_targets_count      = optional(number)<br/>        minimum_healthy_targets_percentage = optional(string)<br/>      }))<br/>    }))<br/>    target_health_state = optional(object({<br/>      enable_unhealthy_connection_termination = bool<br/>      unhealthy_draining_interval             = optional(number)<br/>    }))<br/>    target_type = optional(string)<br/>    target_id   = optional(string)<br/>    vpc_id      = optional(string)<br/>    # Attachment<br/>    create_attachment = optional(bool, true)<br/>    availability_zone = optional(string)<br/>    # Lambda<br/>    attach_lambda_permission  = optional(bool, false)<br/>    lambda_qualifier          = optional(string)<br/>    lambda_statement_id       = optional(string)<br/>    lambda_action             = optional(string)<br/>    lambda_principal          = optional(string)<br/>    lambda_source_account     = optional(string)<br/>    lambda_event_source_token = optional(string)<br/>  }))</pre> | `null` | no |
 | <a name="input_timeouts"></a> [timeouts](#input\_timeouts) | Create, update, and delete timeout configurations for the load balancer | <pre>object({<br/>    create = optional(string)<br/>    update = optional(string)<br/>    delete = optional(string)<br/>  })</pre> | `null` | no |
 | <a name="input_vpc_id"></a> [vpc\_id](#input\_vpc\_id) | Identifier of the VPC where the security group will be created | `string` | `null` | no |
 | <a name="input_web_acl_arn"></a> [web\_acl\_arn](#input\_web\_acl\_arn) | Web Application Firewall (WAF) ARN of the resource to associate with the load balancer | `string` | `null` | no |

examples/complete-alb/main.tf

@@ -386,7 +386,7 @@ module "alb" {
       deregistration_delay              = 10
       load_balancing_algorithm_type     = "weighted_random"
       load_balancing_anomaly_mitigation = "on"
-      load_balancing_cross_zone_enabled = false
+      load_balancing_cross_zone_enabled = "use_load_balancer_configuration"
 
       target_group_health = {
         dns_failover = {

variables.tf

@@ -431,7 +431,7 @@ variable "target_groups" {
     lambda_multi_value_headers_enabled = optional(bool)
     load_balancing_algorithm_type      = optional(string)
     load_balancing_anomaly_mitigation  = optional(string)
-    load_balancing_cross_zone_enabled  = optional(bool)
+    load_balancing_cross_zone_enabled  = optional(string)
     name                               = optional(string)
     name_prefix                        = optional(string)
     port                               = optional(number)