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/** | ||
* Copyright 2024 Google LLC | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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module "network_connectivity_center" { | ||
source = "terraform-google-modules/network/google//modules/network-connectivity-center" | ||
project_id = var.project_id | ||
ncc_hub_name = var.ncc_hub_name | ||
vpc_spokes = { | ||
"vpc-1" = { | ||
uri = module.vpc_spoke_vpc.network_id | ||
} | ||
} | ||
hybrid_spokes = { | ||
"vpn-1" = { | ||
type = "vpn" | ||
uris = [for k, v in module.local_to_remote_vpn.tunnel_self_links : v] | ||
site_to_site_data_transfer = true | ||
location = var.vpn_region | ||
} | ||
} | ||
router_appliance_spokes = { | ||
"appliance-1" = { | ||
instances = [ | ||
{ | ||
virtual_machine = google_compute_instance.router_appliance_1.id | ||
ip_address = google_compute_instance.router_appliance_1.network_interface[0].network_ip | ||
}, | ||
{ | ||
virtual_machine = google_compute_instance.router_appliance_2.id | ||
ip_address = google_compute_instance.router_appliance_2.network_interface[0].network_ip | ||
} | ||
] | ||
location = var.instance_region | ||
site_to_site_data_transfer = false | ||
} | ||
} | ||
} | ||
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################################ | ||
# VPC Spoke # | ||
################################ | ||
module "vpc_spoke_vpc" { | ||
source = "terraform-google-modules/network/google" | ||
project_id = var.project_id | ||
network_name = var.vpc_spoke_vpc_name | ||
routing_mode = "GLOBAL" | ||
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subnets = [ | ||
{ | ||
subnet_name = "vpc-spoke-subnet-01" | ||
subnet_ip = "10.10.10.0/24" | ||
subnet_region = "us-west1" | ||
}, | ||
{ | ||
subnet_name = "vpc-spoke-subnet-02" | ||
subnet_ip = "10.10.20.0/24" | ||
subnet_region = "us-east1" | ||
}, | ||
{ | ||
subnet_name = "vpc-spoke-subnet-03" | ||
subnet_ip = "10.10.30.0/24" | ||
subnet_region = "europe-west4" | ||
} | ||
] | ||
} | ||
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################################ | ||
# VPN Spoke # | ||
################################ | ||
# Simulates an on-prem network that will be connected over VPN | ||
module "vpn_spoke_remote_vpc" { | ||
source = "terraform-google-modules/network/google" | ||
project_id = var.project_id | ||
network_name = var.vpn_spoke_remote_vpc_name | ||
routing_mode = "GLOBAL" | ||
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subnets = [ | ||
{ | ||
subnet_name = "vpn-subnet-01" | ||
subnet_ip = "10.20.10.0/24" | ||
subnet_region = "us-west1" | ||
}, | ||
{ | ||
subnet_name = "vpn-subnet-02" | ||
subnet_ip = "10.20.20.0/24" | ||
subnet_region = "us-east1" | ||
}, | ||
{ | ||
subnet_name = "vpn-subnet-03" | ||
subnet_ip = "10.20.30.0/24" | ||
subnet_region = "europe-west4" | ||
} | ||
] | ||
} | ||
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module "vpn_spoke_local_vpc" { | ||
source = "terraform-google-modules/network/google" | ||
project_id = var.project_id | ||
network_name = var.vpn_spoke_local_vpc_name | ||
routing_mode = "GLOBAL" | ||
subnets = [] | ||
} | ||
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module "remote_to_local_vpn" { | ||
source = "terraform-google-modules/vpn/google//modules/vpn_ha" | ||
version = "~> 4.0" | ||
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project_id = var.project_id | ||
region = var.vpn_region | ||
network = module.vpn_spoke_remote_vpc.network_id | ||
name = "remote-to-local" | ||
router_asn = 64513 | ||
peer_gcp_gateway = module.local_to_remote_vpn.self_link | ||
tunnels = { | ||
remote-0 = { | ||
bgp_peer = { | ||
address = "169.254.1.2" | ||
asn = 64514 | ||
} | ||
bgp_peer_options = null | ||
bgp_session_range = "169.254.1.1/30" | ||
ike_version = 2 | ||
vpn_gateway_interface = 0 | ||
peer_external_gateway_interface = null | ||
shared_secret = module.local_to_remote_vpn.random_secret | ||
} | ||
remote-1 = { | ||
bgp_peer = { | ||
address = "169.254.2.2" | ||
asn = 64514 | ||
} | ||
bgp_peer_options = null | ||
bgp_session_range = "169.254.2.1/30" | ||
ike_version = 2 | ||
vpn_gateway_interface = 1 | ||
peer_external_gateway_interface = null | ||
shared_secret = module.local_to_remote_vpn.random_secret | ||
} | ||
} | ||
} | ||
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module "local_to_remote_vpn" { | ||
source = "terraform-google-modules/vpn/google//modules/vpn_ha" | ||
version = "~> 4.0" | ||
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project_id = var.project_id | ||
region = var.vpn_region | ||
network = module.vpn_spoke_local_vpc.network_id | ||
name = "local-to-remote" | ||
peer_gcp_gateway = module.remote_to_local_vpn.self_link | ||
router_asn = 64514 | ||
tunnels = { | ||
remote-0 = { | ||
bgp_peer = { | ||
address = "169.254.1.1" | ||
asn = 64513 | ||
} | ||
bgp_peer_options = null | ||
bgp_session_range = "169.254.1.2/30" | ||
ike_version = 2 | ||
vpn_gateway_interface = 0 | ||
peer_external_gateway_interface = null | ||
shared_secret = "" | ||
} | ||
remote-1 = { | ||
bgp_peer = { | ||
address = "169.254.2.1" | ||
asn = 64513 | ||
} | ||
bgp_peer_options = null | ||
bgp_session_range = "169.254.2.2/30" | ||
ike_version = 2 | ||
vpn_gateway_interface = 1 | ||
peer_external_gateway_interface = null | ||
shared_secret = "" | ||
} | ||
} | ||
} | ||
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################################ | ||
# Router Appliance Spoke # | ||
################################ | ||
data "google_compute_zones" "available" { | ||
project = var.project_id | ||
region = var.instance_region | ||
} | ||
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resource "random_shuffle" "zone" { | ||
input = data.google_compute_zones.available.names | ||
result_count = 1 | ||
} | ||
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module "router_appliance_spoke_vpc" { | ||
source = "terraform-google-modules/network/google" | ||
project_id = var.project_id | ||
network_name = var.router_appliance_vpc_name | ||
routing_mode = "GLOBAL" | ||
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subnets = [ | ||
{ | ||
subnet_name = "router-appliance-subnet-01" | ||
subnet_ip = "10.20.10.0/24" | ||
subnet_region = var.instance_region | ||
} | ||
] | ||
} | ||
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resource "google_compute_instance" "router_appliance_1" { | ||
name = "fake-router-appliance-1" | ||
machine_type = "e2-medium" | ||
project = var.project_id | ||
can_ip_forward = true | ||
zone = random_shuffle.zone.result[0] | ||
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boot_disk { | ||
initialize_params { | ||
image = "debian-cloud/debian-11" | ||
} | ||
} | ||
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network_interface { | ||
subnetwork = module.router_appliance_spoke_vpc.subnets["${var.instance_region}/router-appliance-subnet-01"].id | ||
access_config { | ||
network_tier = "PREMIUM" | ||
} | ||
} | ||
} | ||
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resource "google_compute_instance" "router_appliance_2" { | ||
name = "fake-router-appliance-2" | ||
machine_type = "e2-medium" | ||
project = var.project_id | ||
can_ip_forward = true | ||
zone = random_shuffle.zone.result[0] | ||
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boot_disk { | ||
initialize_params { | ||
image = "debian-cloud/debian-11" | ||
} | ||
} | ||
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network_interface { | ||
subnetwork = module.router_appliance_spoke_vpc.subnets["${var.instance_region}/router-appliance-subnet-01"].id | ||
access_config { | ||
network_tier = "PREMIUM" | ||
} | ||
} | ||
} |
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/** | ||
* Copyright 2024 Google LLC | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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output "ncc_hub" { | ||
description = "The NCC Hub object" | ||
value = module.network_connectivity_center.ncc_hub | ||
} | ||
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output "vpc_spokes" { | ||
description = "All vpc spoke objects" | ||
value = module.network_connectivity_center.vpc_spokes | ||
} | ||
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output "hybrid_spokes" { | ||
description = "All hybrid spoke objects" | ||
value = module.network_connectivity_center.hybrid_spokes | ||
} | ||
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output "router_appliance_spokes" { | ||
description = "All router appliance spoke objects" | ||
value = module.network_connectivity_center.router_appliance_spokes | ||
} | ||
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output "spokes" { | ||
description = "All spoke objects prefixed with the type of spoke (vpc, hybrid, appliance)" | ||
value = module.network_connectivity_center.spokes | ||
} |
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/** | ||
* Copyright 2024 Google LLC | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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variable "project_id" { | ||
description = "The project ID to host the network in" | ||
} | ||
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variable "vpn_region" { | ||
description = "The region where to deploy the VPN" | ||
default = "europe-west4" | ||
} | ||
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variable "instance_region" { | ||
description = "The region where to deploy the Router Instance in" | ||
default = "us-central1" | ||
} | ||
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variable "ncc_hub_name" { | ||
description = "The Name of the NCC Hub" | ||
type = string | ||
default = "ncc-hub" | ||
} | ||
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variable "vpc_spoke_vpc_name" { | ||
description = "The VPC Name for the VPC Spoke" | ||
type = string | ||
default = "vpc-spoke" | ||
} | ||
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variable "vpn_spoke_local_vpc_name" { | ||
description = "The name for the local VPC (GCP side) for the VPN Spoke" | ||
type = string | ||
default = "vpn-local-spoke" | ||
} | ||
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variable "vpn_spoke_remote_vpc_name" { | ||
description = "The name for the remote VPC (fake on-orem) for the VPN Spoke" | ||
type = string | ||
default = "vpn-remote-spoke" | ||
} | ||
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variable "router_appliance_vpc_name" { | ||
description = "The VPC Name for the VPC Spoke" | ||
type = string | ||
default = "router-appliance-spoke" | ||
} |
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/** | ||
* Copyright 2024 Google LLC | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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terraform { | ||
required_version = ">=0.13.0" | ||
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required_providers { | ||
google = { | ||
source = "hashicorp/google" | ||
version = ">= 5.40.0" | ||
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} | ||
} | ||
} |
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