feat: Switch default route deletion to use native method. (#185)

* switch to delete_default_routes_on_create

* linter and generate docs

* fix description

* revert to original variable name

Author: ChandranshuRao14

README.md

@@ -95,7 +95,7 @@ Then perform the following commands on the root folder:
 | Name | Description | Type | Default | Required |
 |------|-------------|:----:|:-----:|:-----:|
 | auto\_create\_subnetworks | When set to true, the network is created in 'auto subnet mode' and it will create a subnet for each region automatically across the 10.128.0.0/9 address range. When set to false, the network is created in 'custom subnet mode' so the user can explicitly connect subnetwork resources. | bool | `"false"` | no |
-| delete\_default\_internet\_gateway\_routes | If set, ensure that all routes within the network specified whose names begin with 'default-route' and with a next hop of 'default-internet-gateway' are deleted | string | `"false"` | no |
+| delete\_default\_internet\_gateway\_routes | If set, ensure that all routes within the network specified whose names begin with 'default-route' and with a next hop of 'default-internet-gateway' are deleted | bool | `"false"` | no |
 | description | An optional description of this resource. The resource must be recreated to modify this field. | string | `""` | no |
 | network\_name | The name of the network being created | string | n/a | yes |
 | project\_id | The ID of the project where this VPC will be created | string | n/a | yes |

examples/delete_default_gateway_routes/main.tf

@@ -30,7 +30,7 @@ module "test-vpc-module" {
   source                                 = "../../"
   project_id                             = var.project_id
   network_name                           = var.network_name
-  delete_default_internet_gateway_routes = "true"
+  delete_default_internet_gateway_routes = true
 
   subnets = [
     {

main.tf

@@ -18,13 +18,14 @@
 	VPC configuration
  *****************************************/
 module "vpc" {
-  source                  = "./modules/vpc"
-  network_name            = var.network_name
-  auto_create_subnetworks = var.auto_create_subnetworks
-  routing_mode            = var.routing_mode
-  project_id              = var.project_id
-  description             = var.description
-  shared_vpc_host         = var.shared_vpc_host
+  source                                 = "./modules/vpc"
+  network_name                           = var.network_name
+  auto_create_subnetworks                = var.auto_create_subnetworks
+  routing_mode                           = var.routing_mode
+  project_id                             = var.project_id
+  description                            = var.description
+  shared_vpc_host                        = var.shared_vpc_host
+  delete_default_internet_gateway_routes = var.delete_default_internet_gateway_routes
 }
 
 /******************************************
@@ -42,10 +43,9 @@ module "subnets" {
 	Routes
  *****************************************/
 module "routes" {
-  source                                 = "./modules/routes"
-  project_id                             = var.project_id
-  network_name                           = module.vpc.network_name
-  routes                                 = var.routes
-  delete_default_internet_gateway_routes = var.delete_default_internet_gateway_routes
-  module_depends_on                      = [module.subnets.subnets]
+  source            = "./modules/routes"
+  project_id        = var.project_id
+  network_name      = module.vpc.network_name
+  routes            = var.routes
+  module_depends_on = [module.subnets.subnets]
 }

modules/routes-beta/README.md

@@ -57,7 +57,6 @@ module "vpc" {
 
 | Name | Description | Type | Default | Required |
 |------|-------------|:----:|:-----:|:-----:|
-| delete\_default\_internet\_gateway\_routes | If set, ensure that all routes within the network specified whose names begin with 'default-route' and with a next hop of 'default-internet-gateway' are deleted | string | `"false"` | no |
 | module\_depends\_on | List of modules or resources this module depends on. | list | `<list>` | no |
 | network\_name | The name of the network where routes will be created | string | n/a | yes |
 | project\_id | The ID of the project where the routes will be created | string | n/a | yes |

modules/routes-beta/main.tf

@@ -38,19 +38,3 @@ resource "google_compute_route" "route" {
 
   depends_on = [var.module_depends_on]
 }
-
-resource "null_resource" "delete_default_internet_gateway_routes" {
-  count = var.delete_default_internet_gateway_routes ? 1 : 0
-
-  provisioner "local-exec" {
-    command = "${path.module}/scripts/delete-default-gateway-routes.sh ${var.project_id} ${var.network_name}"
-  }
-
-  triggers = {
-    number_of_routes = length(var.routes)
-  }
-
-  depends_on = [
-    google_compute_route.route,
-  ]
-}

modules/routes-beta/scripts/delete-default-gateway-routes.sh

@@ -34,11 +34,6 @@ variable "routes_count" {
   default     = 0
 }
 
-variable "delete_default_internet_gateway_routes" {
-  description = "If set, ensure that all routes within the network specified whose names begin with 'default-route' and with a next hop of 'default-internet-gateway' are deleted"
-  default     = "false"
-}
-
 variable "module_depends_on" {
   description = "List of modules or resources this module depends on."
   type        = list

modules/routes-beta/variables.tf

@@ -46,7 +46,6 @@ module "vpc" {
 
 | Name | Description | Type | Default | Required |
 |------|-------------|:----:|:-----:|:-----:|
-| delete\_default\_internet\_gateway\_routes | If set, ensure that all routes within the network specified whose names begin with 'default-route' and with a next hop of 'default-internet-gateway' are deleted | string | `"false"` | no |
 | module\_depends\_on | List of modules or resources this module depends on. | list | `<list>` | no |
 | network\_name | The name of the network where routes will be created | string | n/a | yes |
 | project\_id | The ID of the project where the routes will be created | string | n/a | yes |

modules/routes/README.md

@@ -43,19 +43,3 @@ resource "google_compute_route" "route" {
 
   depends_on = [var.module_depends_on]
 }
-
-resource "null_resource" "delete_default_internet_gateway_routes" {
-  count = var.delete_default_internet_gateway_routes ? 1 : 0
-
-  provisioner "local-exec" {
-    command = "${path.module}/scripts/delete-default-gateway-routes.sh ${var.project_id} ${var.network_name}"
-  }
-
-  triggers = {
-    number_of_routes = length(var.routes)
-  }
-
-  depends_on = [
-    google_compute_route.route,
-  ]
-}