feat: Add support for assigning public IPs directly to instances. (#83)

Author: rchenzheng

examples/compute_instance/simple/README.md

@@ -7,6 +7,8 @@ This is a simple, minimal example of how to use the compute_instance module
 
 | Name | Description | Type | Default | Required |
 |------|-------------|:----:|:-----:|:-----:|
+| nat\_ip | Public ip address | string | `"null"` | no |
+| network\_tier | Network network_tier | string | `"PREMIUM"` | no |
 | num\_instances | Number of instances to create | string | n/a | yes |
 | project\_id | The GCP project to use for integration tests | string | n/a | yes |
 | region | The GCP region to create and test resources in | string | `"us-central1"` | no |

examples/compute_instance/simple/main.tf

@@ -34,4 +34,8 @@ module "compute_instance" {
   num_instances     = var.num_instances
   hostname          = "instance-simple"
   instance_template = module.instance_template.self_link
+  access_config = [{
+    nat_ip       = var.nat_ip
+    network_tier = var.network_tier
+  }, ]
 }

examples/compute_instance/simple/variables.tf

@@ -35,6 +35,15 @@ variable "num_instances" {
   description = "Number of instances to create"
 }
 
+variable "nat_ip" {
+  description = "Public ip address"
+  default     = null
+}
+
+variable "network_tier" {
+  description = "Network network_tier"
+  default     = "PREMIUM"
+}
 
 
 variable "service_account" {

modules/compute_instance/README.md

@@ -15,6 +15,7 @@ See the [simple](examples/compute_instance/simple) for a usage example.
 
 | Name | Description | Type | Default | Required |
 |------|-------------|:----:|:-----:|:-----:|
+| access\_config | Access configurations, i.e. IPs via which the VM instance can be accessed via the Internet. | object | `<list>` | no |
 | hostname | Hostname of instances | string | `""` | no |
 | instance\_template | Instance template self_link used to create compute instances | string | n/a | yes |
 | network | Network to deploy to. Only one of network or subnetwork should be specified. | string | `""` | no |

modules/compute_instance/main.tf

@@ -50,6 +50,13 @@ resource "google_compute_instance_from_template" "compute_instance" {
     subnetwork         = var.subnetwork
     subnetwork_project = var.subnetwork_project
     network_ip         = length(var.static_ips) == 0 ? "" : element(local.static_ips, count.index)
+    dynamic "access_config" {
+      for_each = var.access_config
+      content {
+        nat_ip       = access_config.value.nat_ip
+        network_tier = access_config.value.network_tier
+      }
+    }
   }
 
   source_instance_template = var.instance_template

modules/compute_instance/variables.tf

@@ -40,6 +40,15 @@ variable "static_ips" {
   default     = []
 }
 
+variable "access_config" {
+  description = "Access configurations, i.e. IPs via which the VM instance can be accessed via the Internet."
+  type = list(object({
+    nat_ip       = string
+    network_tier = string
+  }))
+  default = []
+}
+
 variable "num_instances" {
   description = "Number of instances to create. This value is ignored if static_ips is provided."
   default     = "1"