diff --git a/modules/umig/README.md b/modules/umig/README.md
index 3cda1fa0..fb8606d9 100644
--- a/modules/umig/README.md
+++ b/modules/umig/README.md
@@ -16,16 +16,18 @@ See the [simple](https://github.com/terraform-google-modules/terraform-google-vm
| Name | Description | Type | Default | Required |
|------|-------------|------|---------|:--------:|
| access\_config | Access configurations, i.e. IPs via which the VM instance can be accessed via the Internet. | list(list(object({
nat_ip = string
network_tier = string
}))) | `[]` | no |
-| additional\_networks | Additional network interface details for GCE, if any. | list(object({
network = string
subnetwork = string
subnetwork_project = string
network_ip = string
access_config = list(object({
nat_ip = string
network_tier = string
}))
ipv6_access_config = list(object({
network_tier = string
}))
})) | `[]` | no |
+| additional\_networks | Additional network interface details for GCE, if any. | list(object({
network = string
subnetwork = string
subnetwork_project = string
network_ip = string
nic_type = optional(string, null)
stack_type = optional(string, null)
access_config = list(object({
nat_ip = string
network_tier = string
}))
ipv6_access_config = list(object({
network_tier = string
}))
})) | `[]` | no |
| hostname | Hostname of instances | `string` | `""` | no |
| hostname\_suffix\_separator | Separator character to compose hostname when add\_hostname\_suffix is set to true. | `string` | `"-"` | no |
| instance\_template | Instance template self\_link used to create compute instances | `string` | n/a | yes |
| ipv6\_access\_config | IPv6 access configurations. Currently a max of 1 IPv6 access configuration is supported. If not specified, the instance will have no external IPv6 Internet access. | list(list(object({
network_tier = string
}))) | `[]` | no |
| named\_ports | Named name and named port | list(object({
name = string
port = number
})) | `[]` | no |
| network | Network to deploy to. Only one of network or subnetwork should be specified. | `string` | `""` | no |
+| nic\_type | Valid values are "VIRTIO\_NET", "GVNIC" or set to null to accept API default behavior. | `string` | `null` | no |
| num\_instances | Number of instances to create. This value is ignored if static\_ips is provided. | `string` | `"1"` | no |
| project\_id | The GCP project ID | `string` | `null` | no |
| region | The GCP region where the unmanaged instance group resides. | `string` | n/a | yes |
+| stack\_type | The stack type for this network interface to identify whether the IPv6 feature is enabled or not. Values are `IPV4_IPV6` or `IPV4_ONLY`. Default behavior is equivalent to IPV4\_ONLY. | `string` | `null` | no |
| static\_ips | List of static IPs for VM instances | `list(string)` | `[]` | no |
| subnetwork | Subnet to deploy to. Only one of network or subnetwork should be specified. | `string` | `""` | no |
| subnetwork\_project | The project that subnetwork belongs to | `string` | `""` | no |
diff --git a/modules/umig/main.tf b/modules/umig/main.tf
index 20265c74..7183784b 100644
--- a/modules/umig/main.tf
+++ b/modules/umig/main.tf
@@ -57,7 +57,8 @@ 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)
-
+ nic_type = var.nic_type
+ stack_type = var.stack_type
dynamic "access_config" {
# convert to map to use lookup function with default value
for_each = lookup({ for k, v in var.access_config : k => v }, count.index, [])
@@ -83,6 +84,8 @@ resource "google_compute_instance_from_template" "compute_instance" {
subnetwork = network_interface.value.subnetwork
subnetwork_project = network_interface.value.subnetwork_project
network_ip = length(network_interface.value.network_ip) > 0 ? network_interface.value.network_ip : null
+ nic_type = lookup(network_interface.value, "nic_type", null)
+ stack_type = lookup(network_interface.value, "stack_type", null)
dynamic "access_config" {
for_each = network_interface.value.access_config
content {
diff --git a/modules/umig/metadata.yaml b/modules/umig/metadata.yaml
index 6ab20114..7008c112 100644
--- a/modules/umig/metadata.yaml
+++ b/modules/umig/metadata.yaml
@@ -94,6 +94,8 @@ spec:
subnetwork = string
subnetwork_project = string
network_ip = string
+ nic_type = optional(string, null)
+ stack_type = optional(string, null)
access_config = list(object({
nat_ip = string
network_tier = string
@@ -134,6 +136,9 @@ spec:
description: Network to deploy to. Only one of network or subnetwork should be specified.
varType: string
defaultValue: ""
+ - name: nic_type
+ description: Valid values are "VIRTIO_NET", "GVNIC" or set to null to accept API default behavior.
+ varType: string
- name: num_instances
description: Number of instances to create. This value is ignored if static_ips is provided.
varType: string
@@ -145,6 +150,9 @@ spec:
description: The GCP region where the unmanaged instance group resides.
varType: string
required: true
+ - name: stack_type
+ description: The stack type for this network interface to identify whether the IPv6 feature is enabled or not. Values are `IPV4_IPV6` or `IPV4_ONLY`. Default behavior is equivalent to IPV4_ONLY.
+ varType: string
- name: static_ips
description: List of static IPs for VM instances
varType: list(string)
diff --git a/modules/umig/variables.tf b/modules/umig/variables.tf
index 4c056106..877430e3 100644
--- a/modules/umig/variables.tf
+++ b/modules/umig/variables.tf
@@ -43,6 +43,23 @@ variable "subnetwork_project" {
default = ""
}
+variable "nic_type" {
+ description = "Valid values are \"VIRTIO_NET\", \"GVNIC\" or set to null to accept API default behavior."
+ type = string
+ default = null
+
+ validation {
+ condition = var.nic_type == null || var.nic_type == "GVNIC" || var.nic_type == "VIRTIO_NET"
+ error_message = "The \"nic_type\" variable must be set to \"VIRTIO_NET\", \"GVNIC\", or null to allow API default selection."
+ }
+}
+
+variable "stack_type" {
+ description = "The stack type for this network interface to identify whether the IPv6 feature is enabled or not. Values are `IPV4_IPV6` or `IPV4_ONLY`. Default behavior is equivalent to IPV4_ONLY."
+ type = string
+ default = null
+}
+
variable "additional_networks" {
description = "Additional network interface details for GCE, if any."
default = []
@@ -51,6 +68,8 @@ variable "additional_networks" {
subnetwork = string
subnetwork_project = string
network_ip = string
+ nic_type = optional(string, null)
+ stack_type = optional(string, null)
access_config = list(object({
nat_ip = string
network_tier = string