ECS Cluster default Service Discovery Namespace support (#29)

* add support for default service discovery namespace

* Apply suggestions from code review

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

* Update README and frontend to support default service discovery namespace

This change updates the description and explanation of the infrastructure, including replacing some sections with modern equivalents. Additionally, it modifies frontend code to include support for default service discovery namespace. This will enhance flexible operations within AWS ECS cluster, ensuring smoother service discovery processes within the cloud environment.

* Update README

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

README.md

@@ -215,6 +215,7 @@ Available targets:
 | <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_regex_replace_chars"></a> [regex\_replace\_chars](#input\_regex\_replace\_chars) | Terraform regular expression (regex) string.<br>Characters matching the regex will be removed from the ID elements.<br>If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits. | `string` | `null` | no |
+| <a name="input_service_discovery_namespace_arn"></a> [service\_discovery\_namespace\_arn](#input\_service\_discovery\_namespace\_arn) | The Amazon Resource Name (ARN) of the service discovery namespace that you want to use for default service discovery. | `string` | `null` | no |
 | <a name="input_stage"></a> [stage](#input\_stage) | ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release' | `string` | `null` | no |
 | <a name="input_tags"></a> [tags](#input\_tags) | Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`).<br>Neither the tag keys nor the tag values will be modified by this module. | `map(string)` | `{}` | no |
 | <a name="input_tenant"></a> [tenant](#input\_tenant) | ID element \_(Rarely used, not included by default)\_. A customer identifier, indicating who this instance of a resource is for | `string` | `null` | no |

docs/terraform.md

@@ -63,6 +63,7 @@
 | <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_regex_replace_chars"></a> [regex\_replace\_chars](#input\_regex\_replace\_chars) | Terraform regular expression (regex) string.<br>Characters matching the regex will be removed from the ID elements.<br>If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits. | `string` | `null` | no |
+| <a name="input_service_discovery_namespace_arn"></a> [service\_discovery\_namespace\_arn](#input\_service\_discovery\_namespace\_arn) | The Amazon Resource Name (ARN) of the service discovery namespace that you want to use for default service discovery. | `string` | `null` | no |
 | <a name="input_stage"></a> [stage](#input\_stage) | ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release' | `string` | `null` | no |
 | <a name="input_tags"></a> [tags](#input\_tags) | Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`).<br>Neither the tag keys nor the tag values will be modified by this module. | `map(string)` | `{}` | no |
 | <a name="input_tenant"></a> [tenant](#input\_tenant) | ID element \_(Rarely used, not included by default)\_. A customer identifier, indicating who this instance of a resource is for | `string` | `null` | no |

main.tf

@@ -24,6 +24,7 @@ locals {
   ]
 }
 
+
 resource "aws_ecs_cluster" "default" {
   count = local.enabled ? 1 : 0
 
@@ -51,6 +52,13 @@ resource "aws_ecs_cluster" "default" {
     }
   }
 
+  dynamic "service_connect_defaults" {
+    for_each = var.service_discovery_namespace_arn != null ? [var.service_discovery_namespace_arn] : []
+    content {
+      namespace = service_connect_defaults.value
+    }
+  }
+
   tags = module.this.tags
 }
 

variables.tf

@@ -206,3 +206,9 @@ variable "default_capacity_strategy" {
     weights = {}
   }
 }
+
+variable "service_discovery_namespace_arn" {
+  description = "The Amazon Resource Name (ARN) of the service discovery namespace that you want to use for default service discovery."
+  type        = string
+  default     = null
+}