Add load_balancing_algorithm_type input variable (#127)

* Add load_balancing_algorithm_type input variable

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* Update
copyright

* let autoformat generate doc

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Co-authored-by: cloudpossebot <[email protected]>

README.md

@@ -296,6 +296,7 @@ Available targets:
 | <a name="input_listener_https_fixed_response"></a> [listener\_https\_fixed\_response](#input\_listener\_https\_fixed\_response) | Have the HTTPS listener return a fixed response for the default action. | <pre>object({<br>    content_type = string<br>    message_body = string<br>    status_code  = string<br>  })</pre> | `null` | no |
 | <a name="input_load_balancer_name"></a> [load\_balancer\_name](#input\_load\_balancer\_name) | The name for the default load balancer, uses a module label name if left empty | `string` | `""` | no |
 | <a name="input_load_balancer_name_max_length"></a> [load\_balancer\_name\_max\_length](#input\_load\_balancer\_name\_max\_length) | The max length of characters for the load balancer. | `number` | `32` | no |
+| <a name="input_load_balancing_algorithm_type"></a> [load\_balancing\_algorithm\_type](#input\_load\_balancing\_algorithm\_type) | Determines how the load balancer selects targets when routing requests. Only applicable for Application Load Balancer Target Groups | `string` | `"round_robin"` | no |
 | <a name="input_name"></a> [name](#input\_name) | ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.<br>This is the only ID element not also included as a `tag`.<br>The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input. | `string` | `null` | no |
 | <a name="input_namespace"></a> [namespace](#input\_namespace) | ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique | `string` | `null` | no |
 | <a name="input_noncurrent_version_expiration_days"></a> [noncurrent\_version\_expiration\_days](#input\_noncurrent\_version\_expiration\_days) | (Deprecated, use `lifecycle_configuration_rules` instead)<br>Specifies when non-current object versions expire (in days) | `number` | `90` | no |
@@ -426,7 +427,7 @@ In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.
 
 ## Copyright
 
-Copyright © 2017-2022 [Cloud Posse, LLC](https://cpco.io/copyright)
+Copyright © 2017-2023 [Cloud Posse, LLC](https://cpco.io/copyright)
 
 
 

docs/terraform.md

@@ -96,6 +96,7 @@
 | <a name="input_listener_https_fixed_response"></a> [listener\_https\_fixed\_response](#input\_listener\_https\_fixed\_response) | Have the HTTPS listener return a fixed response for the default action. | <pre>object({<br>    content_type = string<br>    message_body = string<br>    status_code  = string<br>  })</pre> | `null` | no |
 | <a name="input_load_balancer_name"></a> [load\_balancer\_name](#input\_load\_balancer\_name) | The name for the default load balancer, uses a module label name if left empty | `string` | `""` | no |
 | <a name="input_load_balancer_name_max_length"></a> [load\_balancer\_name\_max\_length](#input\_load\_balancer\_name\_max\_length) | The max length of characters for the load balancer. | `number` | `32` | no |
+| <a name="input_load_balancing_algorithm_type"></a> [load\_balancing\_algorithm\_type](#input\_load\_balancing\_algorithm\_type) | Determines how the load balancer selects targets when routing requests. Only applicable for Application Load Balancer Target Groups | `string` | `"round_robin"` | no |
 | <a name="input_name"></a> [name](#input\_name) | ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.<br>This is the only ID element not also included as a `tag`.<br>The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input. | `string` | `null` | no |
 | <a name="input_namespace"></a> [namespace](#input\_namespace) | ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique | `string` | `null` | no |
 | <a name="input_noncurrent_version_expiration_days"></a> [noncurrent\_version\_expiration\_days](#input\_noncurrent\_version\_expiration\_days) | (Deprecated, use `lifecycle_configuration_rules` instead)<br>Specifies when non-current object versions expire (in days) | `number` | `90` | no |

main.tf

@@ -107,15 +107,16 @@ module "default_target_group_label" {
 }
 
 resource "aws_lb_target_group" "default" {
-  count                = module.this.enabled && var.default_target_group_enabled ? 1 : 0
-  name                 = var.target_group_name == "" ? module.default_target_group_label.id : substr(var.target_group_name, 0, var.target_group_name_max_length)
-  port                 = var.target_group_port
-  protocol             = var.target_group_protocol
-  protocol_version     = var.target_group_protocol_version
-  vpc_id               = var.vpc_id
-  target_type          = var.target_group_target_type
-  deregistration_delay = var.deregistration_delay
-  slow_start           = var.slow_start
+  count                         = module.this.enabled && var.default_target_group_enabled ? 1 : 0
+  name                          = var.target_group_name == "" ? module.default_target_group_label.id : substr(var.target_group_name, 0, var.target_group_name_max_length)
+  port                          = var.target_group_port
+  protocol                      = var.target_group_protocol
+  protocol_version              = var.target_group_protocol_version
+  vpc_id                        = var.vpc_id
+  target_type                   = var.target_group_target_type
+  load_balancing_algorithm_type = var.load_balancing_algorithm_type
+  deregistration_delay          = var.deregistration_delay
+  slow_start                    = var.slow_start
 
   health_check {
     protocol            = var.health_check_protocol != null ? var.health_check_protocol : var.target_group_protocol

variables.tf

@@ -339,6 +339,12 @@ variable "load_balancer_name_max_length" {
   description = "The max length of characters for the load balancer."
 }
 
+variable "load_balancing_algorithm_type" {
+  type        = string
+  default     = "round_robin"
+  description = "Determines how the load balancer selects targets when routing requests. Only applicable for Application Load Balancer Target Groups"
+}
+
 variable "default_target_group_enabled" {
   type        = bool
   description = "Whether the default target group should be created or not."