update vpc-peering with requester params (#1097)

Author: Benbentwo

modules/vpc-peering/README.md

@@ -230,7 +230,9 @@ atmos terraform apply vpc-peering -s ue1-prod
 | <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_region"></a> [region](#input\_region) | AWS Region | `string` | n/a | yes |
 | <a name="input_requester_allow_remote_vpc_dns_resolution"></a> [requester\_allow\_remote\_vpc\_dns\_resolution](#input\_requester\_allow\_remote\_vpc\_dns\_resolution) | Allow requester VPC to resolve public DNS hostnames to private IP addresses when queried from instances in the accepter VPC | `bool` | `true` | no |
+| <a name="input_requester_role_arn"></a> [requester\_role\_arn](#input\_requester\_role\_arn) | Requestor AWS assume role ARN, if not provided it will be assumed to be the current terraform role. | `string` | `null` | no |
 | <a name="input_requester_vpc_component_name"></a> [requester\_vpc\_component\_name](#input\_requester\_vpc\_component\_name) | Requestor vpc component name | `string` | `"vpc"` | no |
+| <a name="input_requester_vpc_id"></a> [requester\_vpc\_id](#input\_requester\_vpc\_id) | Requestor VPC ID, if not provided, it will be looked up by component using variable `requester_vpc_component_name` | `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 |

modules/vpc-peering/main.tf

@@ -1,7 +1,7 @@
 locals {
   enabled = module.this.enabled
 
-  requester_vpc_id = module.requester_vpc.outputs.vpc_id
+  requester_vpc_id = coalesce(var.requester_vpc_id, module.requester_vpc.outputs.vpc_id)
 
   accepter_aws_assume_role_arn = var.accepter_stage_name != null ? module.iam_roles.terraform_role_arns[var.accepter_stage_name] : var.accepter_aws_assume_role_arn
 }
@@ -24,7 +24,7 @@ module "vpc_peering" {
   auto_accept = var.auto_accept
 
   requester_allow_remote_vpc_dns_resolution = var.requester_allow_remote_vpc_dns_resolution
-  requester_aws_assume_role_arn             = module.iam_roles.terraform_role_arn
+  requester_aws_assume_role_arn             = coalesce(var.requester_role_arn, module.iam_roles.terraform_role_arn)
   requester_region                          = var.region
   requester_vpc_id                          = local.requester_vpc_id
 

modules/vpc-peering/variables.tf

@@ -37,6 +37,18 @@ variable "accepter_stage_name" {
   default     = null
 }
 
+variable "requester_vpc_id" {
+  type        = string
+  description = "Requestor VPC ID, if not provided, it will be looked up by component using variable `requester_vpc_component_name`"
+  default     = null
+}
+
+variable "requester_role_arn" {
+  type        = string
+  description = "Requestor AWS assume role ARN, if not provided it will be assumed to be the current terraform role."
+  default     = null
+}
+
 variable "requester_allow_remote_vpc_dns_resolution" {
   type        = bool
   description = "Allow requester VPC to resolve public DNS hostnames to private IP addresses when queried from instances in the accepter VPC"