CCM-5680 fix custom domain name and env vars

infrastructure/terraform/components/branch/module_amplify_branch.tf

@@ -9,7 +9,7 @@ module "amplify_branch" {
   region         = var.region
   group          = var.group
 
-  cognito_user_pool_client_id               = local.iam.cognito_user_pool["id"]
+  cognito_user_pool_client_id               = local.iam.cognito_user_pool_client["id"]
   cognito_user_pool_identity_provider_names = local.iam.cognito_user_pool["identity_providers"]
   amplify_app_id                            = local.iam.amplify["id"]
   branch                                    = var.branch_name

infrastructure/terraform/components/iam/amplify_domain_association.tf

@@ -1,10 +1,35 @@
-resource "aws_amplify_domain_association" "domain" {
-  app_id                 = aws_amplify_app.main.id
-  domain_name            = local.acct.dns_zone["name"]
-  enable_auto_sub_domain = false
-
-  sub_domain {
-    branch_name = module.amplify_branch.name
-    prefix      = ""
+# resource "aws_amplify_domain_association" "domain" {
+#   app_id                 = aws_amplify_app.main.id
+#   domain_name            = local.acct.dns_zone["name"]
+#   enable_auto_sub_domain = true
+
+#   sub_domain {
+#     branch_name = module.amplify_branch.name
+#     prefix      = ""
+#   }
+
+#   sub_domain {
+#     branch_name = module.amplify_branch.name
+#     prefix      = "main"
+#   }
+# }
+
+# TODO CCM-6078 Revert to above amplify_domain_association resource on closure of https://github.com/hashicorp/terraform-provider-aws/issues/37498
+# Provider does not correctly set autoSubDomainCreationPatterns when enable_auto_sub_domain is set
+resource "null_resource" "amplify_domain_association" {
+  triggers = {
+    amplify_app_id      = aws_amplify_app.main.id
+    amplify_branch_name = module.amplify_branch.name
+    amplify_domain_name = local.acct.dns_zone["name"]
+  }
+
+  provisioner "local-exec" {
+    when    = create
+    command = "aws amplify create-domain-association --app-id ${self.triggers.amplify_app_id} --domain-name ${self.triggers.amplify_domain_name} --sub-domain-settings prefix=\"\",branchName=\"${self.triggers.amplify_branch_name}\" prefix=\"${self.triggers.amplify_branch_name}\",branchName=\"${self.triggers.amplify_branch_name}\" --enable-auto-sub-domain --auto-sub-domain-creation-patterns \"*,pr*\""
+  }
+
+  provisioner "local-exec" {
+    when    = destroy
+    command = "aws amplify delete-domain-association --app-id ${self.triggers.amplify_app_id} --domain-name ${self.triggers.amplify_domain_name}"
   }
 }

infrastructure/terraform/components/iam/module_amplify_branch.tf

@@ -9,7 +9,7 @@ module "amplify_branch" {
   region         = var.region
   group          = var.group
 
-  cognito_user_pool_client_id               = aws_cognito_user_pool_client.main.user_pool_id
+  cognito_user_pool_client_id               = aws_cognito_user_pool_client.main.id
   cognito_user_pool_identity_provider_names = aws_cognito_user_pool_client.main.supported_identity_providers
   amplify_app_id                            = aws_amplify_app.main.id
   branch                                    = "main"

infrastructure/terraform/components/iam/outputs.tf

@@ -5,6 +5,12 @@ output "cognito_user_pool" {
   }
 }
 
+output "cognito_user_pool_client" {
+  value = {
+    id = aws_cognito_user_pool_client.main.id
+  }
+}
+
 output "amplify" {
   value = {
     id = aws_amplify_app.main.id