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feat(TPG >= 4.74)!: Added labels, update TPG and Terraform version re…
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…quirements (#112)
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imrannayer authored Jul 25, 2023
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7 changes: 4 additions & 3 deletions README.md
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Expand Up @@ -12,7 +12,7 @@ If you want to deploy [HA VPN](https://cloud.google.com/vpn/docs/how-to/moving-t

## Compatibility

This module is meant for use with Terraform 0.12. If you haven't [upgraded](https://www.terraform.io/upgrade-guides/0-12.html)
This module is meant for use with Terraform 1.3+. If you haven't [upgraded](https://developer.hashicorp.com/terraform/language/v1.3.x/upgrade-guides)
and need a Terraform 0.11.x-compatible version of this module, the last released version intended for
Terraform 0.11.x is [0.3.0](https://registry.terraform.io/modules/terraform-google-modules/vpn/google/0.3.0).

Expand All @@ -21,6 +21,7 @@ If you want to deploy [HA VPN](https://cloud.google.com/vpn/docs/how-to/moving-t
The following guides are available to assist with upgrades:

- [1.X -> 2.0](./docs/upgrading_to_vpn_v2.0.md)
- [2.X -> 3.0](./docs/upgrading_to_vpn_v3.0.md)

## Usage

Expand Down Expand Up @@ -131,8 +132,8 @@ References the variable descriptions below to determine the right configuration.

## Requirements
### Terraform plugins
- [Terraform](https://www.terraform.io/downloads.html) 0.12.x
- [terraform-provider-google](https://github.com/terraform-providers/terraform-provider-google) plugin v1.8.0
- [Terraform](https://www.terraform.io/downloads.html) 1.3+
- [terraform-provider-google](https://github.com/terraform-providers/terraform-provider-google) plugin v4.64+

### Configure a Service Account
In order to execute this module you must have a Service Account with the following roles:
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42 changes: 34 additions & 8 deletions build/int.cloudbuild.yaml
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Expand Up @@ -21,18 +21,44 @@ steps:
- 'TF_VAR_org_id=$_ORG_ID'
- 'TF_VAR_folder_id=$_FOLDER_ID'
- 'TF_VAR_billing_account=$_BILLING_ACCOUNT'
- id: create
- id: single-tunnel-init
name: 'gcr.io/cloud-foundation-cicd/$_DOCKER_IMAGE_DEVELOPER_TOOLS:$_DOCKER_TAG_VERSION_DEVELOPER_TOOLS'
args: ['/bin/bash', '-c', 'source /usr/local/bin/task_helper_functions.sh && kitchen_do create']
- id: converge
args: ['/bin/bash', '-c', 'cft test run TestAll/examples/single_tunnels --stage init --verbose']
- id: single-tunnel-init-apply
waitFor:
- single-tunnel-init
name: 'gcr.io/cloud-foundation-cicd/$_DOCKER_IMAGE_DEVELOPER_TOOLS:$_DOCKER_TAG_VERSION_DEVELOPER_TOOLS'
args: ['/bin/bash', '-c', 'source /usr/local/bin/task_helper_functions.sh && kitchen_do converge']
- id: verify
args: ['/bin/bash', '-c', 'cft test run TestAll/examples/single_tunnels --stage apply --verbose']
- id: single-tunnel-init-verify
waitFor:
- single-tunnel-init-apply
name: 'gcr.io/cloud-foundation-cicd/$_DOCKER_IMAGE_DEVELOPER_TOOLS:$_DOCKER_TAG_VERSION_DEVELOPER_TOOLS'
args: ['/bin/bash', '-c', 'source /usr/local/bin/task_helper_functions.sh && kitchen_do verify']
- id: destroy
args: ['/bin/bash', '-c', 'cft test run TestAll/examples/single_tunnels --stage verify --verbose']
- id: single-tunnel-init-teardown
waitFor:
- single-tunnel-init-verify
name: 'gcr.io/cloud-foundation-cicd/$_DOCKER_IMAGE_DEVELOPER_TOOLS:$_DOCKER_TAG_VERSION_DEVELOPER_TOOLS'
args: ['/bin/bash', '-c', 'source /usr/local/bin/task_helper_functions.sh && kitchen_do destroy']
args: ['/bin/bash', '-c', 'cft test run TestAll/examples/single_tunnels --stage teardown --verbose']
- id: vpn-ha-init
waitFor:
- single-tunnel-init-teardown
name: 'gcr.io/cloud-foundation-cicd/$_DOCKER_IMAGE_DEVELOPER_TOOLS:$_DOCKER_TAG_VERSION_DEVELOPER_TOOLS'
args: ['/bin/bash', '-c', 'cft test run TestVpnHa --stage init --verbose']
- id: vpn-ha-init-apply
waitFor:
- vpn-ha-init
name: 'gcr.io/cloud-foundation-cicd/$_DOCKER_IMAGE_DEVELOPER_TOOLS:$_DOCKER_TAG_VERSION_DEVELOPER_TOOLS'
args: ['/bin/bash', '-c', 'cft test run TestVpnHa --stage apply --verbose']
- id: vpn-ha-init-verify
waitFor:
- vpn-ha-init-apply
name: 'gcr.io/cloud-foundation-cicd/$_DOCKER_IMAGE_DEVELOPER_TOOLS:$_DOCKER_TAG_VERSION_DEVELOPER_TOOLS'
args: ['/bin/bash', '-c', 'cft test run TestVpnHa --stage verify --verbose']
- id: vpn-ha-init-teardown
waitFor:
- vpn-ha-init-verify
name: 'gcr.io/cloud-foundation-cicd/$_DOCKER_IMAGE_DEVELOPER_TOOLS:$_DOCKER_TAG_VERSION_DEVELOPER_TOOLS'
args: ['/bin/bash', '-c', 'cft test run TestVpnHa --stage teardown --verbose']
tags:
- 'ci'
- 'integration'
Expand Down
8 changes: 8 additions & 0 deletions docs/upgrading_to_vpn_v3.0.md
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@@ -0,0 +1,8 @@
# Upgrading to v3.0.0

The v3.0 release contains backwards-incompatible changes.

This update requires upgrading the minimum provider version `4.64`.

### [Terraform](https://www.terraform.io/downloads.html) >= 1.3.0 is required as `peer_external_gateway`, `router_advertise_config`, `tunnels` and its nested attributes and objects are made optional
Since [optional attributes](https://developer.hashicorp.com/terraform/language/expressions/type-constraints#optional-object-type-attributes) is a version 1.3 feature, the configuration will fail if the pinned version is < 1.3..
2 changes: 2 additions & 0 deletions examples/single_tunnels/variables.tf
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Expand Up @@ -20,6 +20,7 @@ variable "prod_project_id" {

variable "prod_network" {
type = string
default = "default"
description = "The name of the production VPC to be created."
}

Expand All @@ -30,6 +31,7 @@ variable "mgt_project_id" {

variable "mgt_network" {
type = string
default = "default"
description = "The name of the management VPC to be created."
}

30 changes: 25 additions & 5 deletions examples/vpn_ha/outputs.tf
Original file line number Diff line number Diff line change
Expand Up @@ -14,11 +14,29 @@
* limitations under the License.
*/

output "mgt_project_id" {
value = var.mgt_project_id
}

output "mgt_gateway_name" {
description = "Mgt VPN gateway name."
value = module.vpn-ha-to-prod.name
}

output "mgt_tunnel_names" {
description = "Mgt VPN tunnel names."
value = module.vpn-ha-to-prod.tunnel_names
}

output "mgt_tunnel_names_list" {
description = "Mgt VPN tunnel names list."
value = [for x, y in module.vpn-ha-to-prod.tunnel_names : y]
}

output "prod_project_id" {
value = var.prod_project_id
}

output "prod_gateway_name" {
description = "Prod VPN gateway name."
value = module.vpn-ha-to-mgmt.name
Expand All @@ -27,12 +45,14 @@ output "prod_gateway_name" {
output "prod_tunnel_names" {
description = "Prod VPN tunnel names."
value = module.vpn-ha-to-mgmt.tunnel_names
sensitive = true
}

output "mgt_tunnel_names" {
description = "Mgt VPN tunnel names."
value = module.vpn-ha-to-prod.tunnel_names
sensitive = true
output "prod_tunnel_names_list" {
description = "Prod VPN tunnel names list."
value = [for x, y in module.vpn-ha-to-mgmt.tunnel_names : y]
}

output "region" {
description = "Region"
value = var.region
}
2 changes: 1 addition & 1 deletion examples/vpn_ha/versions.tf
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Expand Up @@ -15,5 +15,5 @@
*/

terraform {
required_version = ">= 0.12"
required_version = ">= 1.3"
}
7 changes: 4 additions & 3 deletions modules/vpn_ha/README.md
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Expand Up @@ -132,20 +132,21 @@ module "vpn_ha" {
| Name | Description | Type | Default | Required |
|------|-------------|------|---------|:--------:|
| create\_vpn\_gateway | create a VPN gateway | `bool` | `true` | no |
| external\_vpn\_gateway\_description | An optional description of external VPN Gateway | `string` | `"Terraform managed external VPN gateway"` | no |
| keepalive\_interval | The interval in seconds between BGP keepalive messages that are sent to the peer. | `number` | `20` | no |
| labels | Labels for vpn components | `map(string)` | `{}` | no |
| name | VPN gateway name, and prefix used for dependent resources. | `string` | n/a | yes |
| network | VPC used for the gateway and routes. | `string` | n/a | yes |
| peer\_external\_gateway | Configuration of an external VPN gateway to which this VPN is connected. | <pre>object({<br> name = optional(string)<br> redundancy_type = string<br> interfaces = list(object({<br> id = number<br> ip_address = string<br> }))<br> })</pre> | `null` | no |
| peer\_external\_gateway | Configuration of an external VPN gateway to which this VPN is connected. | <pre>object({<br> name = optional(string)<br> redundancy_type = optional(string)<br> interfaces = list(object({<br> id = number<br> ip_address = string<br> }))<br> })</pre> | `null` | no |
| peer\_gcp\_gateway | Self Link URL of the peer side HA GCP VPN gateway to which this VPN tunnel is connected. | `string` | `null` | no |
| project\_id | Project where resources will be created. | `string` | n/a | yes |
| region | Region used for resources. | `string` | n/a | yes |
| route\_priority | Route priority, defaults to 1000. | `number` | `1000` | no |
| router\_advertise\_config | Router custom advertisement configuration, ip\_ranges is a map of address ranges and descriptions. | <pre>object({<br> groups = list(string)<br> ip_ranges = map(string)<br> mode = string<br> })</pre> | `null` | no |
| router\_advertise\_config | Router custom advertisement configuration, ip\_ranges is a map of address ranges and descriptions. | <pre>object({<br> groups = list(string)<br> ip_ranges = map(string)<br> mode = optional(string)<br> })</pre> | `null` | no |
| router\_asn | Router ASN used for auto-created router. | `number` | `64514` | no |
| router\_name | Name of router, leave blank to create one. | `string` | `""` | no |
| stack\_type | The IP stack type will apply to all the tunnels associated with this VPN gateway. | `string` | `"IPV4_ONLY"` | no |
| tunnels | VPN tunnel configurations, bgp\_peer\_options is usually null. | <pre>map(object({<br> bgp_peer = object({<br> address = string<br> asn = number<br> })<br> bgp_session_name = optional(string)<br> bgp_peer_options = object({<br> ip_address = string<br> advertise_groups = list(string)<br> advertise_ip_ranges = map(string)<br> advertise_mode = string<br> route_priority = number<br> })<br> bgp_session_range = string<br> ike_version = number<br> vpn_gateway_interface = number<br> peer_external_gateway_interface = number<br> shared_secret = string<br> }))</pre> | `{}` | no |
| tunnels | VPN tunnel configurations, bgp\_peer\_options is usually null. | <pre>map(object({<br> bgp_peer = object({<br> address = string<br> asn = number<br> })<br> bgp_session_name = optional(string)<br> bgp_peer_options = optional(object({<br> ip_address = optional(string)<br> advertise_groups = optional(list(string))<br> advertise_ip_ranges = optional(map(string))<br> advertise_mode = optional(string)<br> route_priority = optional(number)<br> }))<br> bgp_session_range = optional(string)<br> ike_version = optional(number)<br> vpn_gateway_interface = optional(number)<br> peer_external_gateway_interface = optional(number)<br> shared_secret = optional(string, "")<br> }))</pre> | `{}` | no |
| vpn\_gateway\_self\_link | self\_link of existing VPN gateway to be used for the vpn tunnel | `string` | `null` | no |

## Outputs
Expand Down
3 changes: 2 additions & 1 deletion modules/vpn_ha/main.tf
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Expand Up @@ -51,7 +51,8 @@ resource "google_compute_external_vpn_gateway" "external_gateway" {
name = var.peer_external_gateway.name != null ? var.peer_external_gateway.name : "external-${var.name}"
project = var.project_id
redundancy_type = var.peer_external_gateway.redundancy_type
description = "Terraform managed external VPN gateway"
description = var.external_vpn_gateway_description
labels = var.labels
dynamic "interface" {
for_each = var.peer_external_gateway.interfaces
content {
Expand Down
1 change: 0 additions & 1 deletion modules/vpn_ha/outputs.tf
Original file line number Diff line number Diff line change
Expand Up @@ -59,7 +59,6 @@ output "tunnels" {

output "tunnel_names" {
description = "VPN tunnel names."
sensitive = true
value = {
for name in keys(var.tunnels) :
name => google_compute_vpn_tunnel.tunnels[name].name
Expand Down
34 changes: 20 additions & 14 deletions modules/vpn_ha/variables.tf
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@ variable "peer_external_gateway" {
description = "Configuration of an external VPN gateway to which this VPN is connected."
type = object({
name = optional(string)
redundancy_type = string
redundancy_type = optional(string)
interfaces = list(object({
id = number
ip_address = string
Expand Down Expand Up @@ -70,7 +70,7 @@ variable "router_advertise_config" {
type = object({
groups = list(string)
ip_ranges = map(string)
mode = string
mode = optional(string)
})
default = null
}
Expand Down Expand Up @@ -101,18 +101,18 @@ variable "tunnels" {
asn = number
})
bgp_session_name = optional(string)
bgp_peer_options = object({
ip_address = string
advertise_groups = list(string)
advertise_ip_ranges = map(string)
advertise_mode = string
route_priority = number
})
bgp_session_range = string
ike_version = number
vpn_gateway_interface = number
peer_external_gateway_interface = number
shared_secret = string
bgp_peer_options = optional(object({
ip_address = optional(string)
advertise_groups = optional(list(string))
advertise_ip_ranges = optional(map(string))
advertise_mode = optional(string)
route_priority = optional(number)
}))
bgp_session_range = optional(string)
ike_version = optional(number)
vpn_gateway_interface = optional(number)
peer_external_gateway_interface = optional(number)
shared_secret = optional(string, "")
}))
default = {}
}
Expand All @@ -134,3 +134,9 @@ variable "labels" {
type = map(string)
default = {}
}

variable "external_vpn_gateway_description" {
description = "An optional description of external VPN Gateway"
type = string
default = "Terraform managed external VPN gateway"
}
4 changes: 2 additions & 2 deletions modules/vpn_ha/versions.tf
Original file line number Diff line number Diff line change
Expand Up @@ -19,11 +19,11 @@ terraform {
required_providers {
google = {
source = "hashicorp/google"
version = ">= 3.30.0, < 5.0"
version = ">= 4.74, < 5.0"
}
google-beta = {
source = "hashicorp/google-beta"
version = ">= 3.30.0, < 5.0"
version = ">= 4.74, < 5.0"
}
random = {
source = "hashicorp/random"
Expand Down
25 changes: 0 additions & 25 deletions test/fixtures/single_tunnels/main.tf

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36 changes: 0 additions & 36 deletions test/fixtures/single_tunnels/variables.tf

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19 changes: 0 additions & 19 deletions test/fixtures/single_tunnels/versions.tf

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26 changes: 0 additions & 26 deletions test/fixtures/vpn_ha/main.tf

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