Initial commit for NCC module
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/**
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* Copyright 2023 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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resource "google_network_connectivity_hub" "ncc-hub" {
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project = var.project_id
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name = var.name
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description = var.description
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}
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resource "google_network_connectivity_spoke" "ncc-spoke" {
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for_each = var.spokes
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project = var.project_id
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hub = google_network_connectivity_hub.ncc-hub.id
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location = each.value.region
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name = "${var.name}-spoke-${each.value.region}"
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linked_router_appliance_instances {
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dynamic "instances" {
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for_each = each.value.nvas
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content {
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virtual_machine = instances.value["vm"]
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ip_address = instances.value["ip"]
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}
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}
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site_to_site_data_transfer = false
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}
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}
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resource "google_compute_router" "ncc-cr" {
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for_each = var.spokes
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project = var.project_id
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name = "${var.name}-cr-${each.value.region}"
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network = each.value.vpc
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region = each.value.region
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bgp {
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advertise_mode = (
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each.value.router.custom_advertise != null ? "CUSTOM" : "DEFAULT"
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)
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advertised_groups = (
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try(each.value.router.custom_advertise.all_subnets, false)
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? ["ALL_SUBNETS"] : []
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)
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dynamic "advertised_ip_ranges" {
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for_each = try(each.value.router.custom_advertise.ip_ranges, {})
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content {
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description = advertised_ip_ranges.key
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range = advertised_ip_ranges.value
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}
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}
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asn = var.asn
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keepalive_interval = try(each.value.router.keepalive, null)
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}
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}
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resource "google_compute_router_interface" "ncc-cr-if1" {
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for_each = var.spokes
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project = var.project_id
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name = "${var.name}-cr-${each.value.region}-if1"
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router = google_compute_router.ncc-cr[each.key].name
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region = each.value.region
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subnetwork = each.value.subnetwork
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private_ip_address = each.value.router.ip1
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}
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resource "google_compute_router_interface" "ncc-cr-if2" {
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for_each = var.spokes
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project = var.project_id
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name = "${var.name}-cr-${each.value.region}-if2"
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router = google_compute_router.ncc-cr[each.key].name
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region = each.value.region
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subnetwork = each.value.subnetwork
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private_ip_address = each.value.router.ip2
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redundant_interface = google_compute_router_interface.ncc-cr-if1[each.key].name
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}
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/**
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* Copyright 2023 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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variable "asn" {
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description = "ASN for all CRs in the hub."
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type = number
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}
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variable "description" {
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description = "An optional description of the NCC hub."
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type = string
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default = "Terraform-managed."
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}
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variable "name" {
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description = "The name of the NCC hub being created."
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type = string
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}
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variable "project_id" {
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description = "The ID of the project where the NCC hub & spokes will be created."
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type = string
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}
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variable "spokes" {
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description = "List of NCC spokes."
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type = map(object({
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vpc = string
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region = string
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subnetwork = string # URI
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nvas = list(object({
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vm = string # URI
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ip = string
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}))
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router = object({
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custom_advertise = object({
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all_subnets = bool
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ip_ranges = map(string) # map of descriptions and address ranges
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})
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ip1 = string
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ip2 = string
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keepalive = number
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peer_asn = number
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})
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}))
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}
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