cloud-foundation-fabric/fast/stages/2-networking-b-vpn/vpn-landing.tf

125 lines
4.2 KiB
HCL

/**
* Copyright 2023 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.
*/
locals {
# persistent_counter.units.values[k]
bgp_sessions_range_0 = "169.254.250.0/25"
bgp_sessions_range_1 = "169.254.250.128/25"
bgp_session_ranges = {
prod-primary = {
0 = cidrsubnet(local.bgp_sessions_range_0, 5, 0)
1 = cidrsubnet(local.bgp_sessions_range_1, 5, 0)
}
prod-secondary = {
0 = cidrsubnet(local.bgp_sessions_range_0, 5, 1)
1 = cidrsubnet(local.bgp_sessions_range_1, 5, 1)
}
dev-primary = {
0 = cidrsubnet(local.bgp_sessions_range_0, 5, 2)
1 = cidrsubnet(local.bgp_sessions_range_1, 5, 2)
}
}
}
module "landing-to-spokes-primary-vpn" {
source = "../../../modules/net-vpn-ha"
project_id = module.landing-project.project_id
network = module.landing-vpc.self_link
region = var.regions.primary
name = "to-spokes-${local.region_shortnames[var.regions.primary]}"
peer_gateways = {
dev = { gcp = module.dev-to-landing-primary-vpn.self_link }
prod = { gcp = module.prod-to-landing-primary-vpn.self_link }
}
router_config = {
asn = var.vpn_configs.landing.asn
custom_advertise = var.vpn_configs.landing.custom_advertise
}
tunnels = {
dev-0 = {
bgp_peer = {
address = cidrhost(local.bgp_session_ranges.dev-primary.0, 2)
asn = var.vpn_configs.dev.asn
}
bgp_session_range = "${cidrhost(local.bgp_session_ranges.dev-primary.0, 1)}/30"
peer_gateway = "dev"
vpn_gateway_interface = 0
}
dev-1 = {
bgp_peer = {
address = cidrhost(local.bgp_session_ranges.dev-primary.1, 2)
asn = var.vpn_configs.dev.asn
}
bgp_session_range = "${cidrhost(local.bgp_session_ranges.dev-primary.1, 1)}/30"
peer_gateway = "dev"
vpn_gateway_interface = 1
}
prod-0 = {
bgp_peer = {
address = cidrhost(local.bgp_session_ranges.prod-primary.0, 2)
asn = var.vpn_configs.prod.asn
}
bgp_session_range = "${cidrhost(local.bgp_session_ranges.prod-primary.0, 1)}/30"
peer_gateway = "prod"
vpn_gateway_interface = 0
}
prod-1 = {
bgp_peer = {
address = cidrhost(local.bgp_session_ranges.prod-primary.1, 2)
asn = var.vpn_configs.prod.asn
}
bgp_session_range = "${cidrhost(local.bgp_session_ranges.prod-primary.1, 1)}/30"
peer_gateway = "prod"
vpn_gateway_interface = 1
}
}
}
module "landing-to-spokes-secondary-vpn" {
source = "../../../modules/net-vpn-ha"
project_id = module.landing-project.project_id
network = module.landing-vpc.self_link
region = var.regions.secondary
name = "to-spokes-${local.region_shortnames[var.regions.secondary]}"
peer_gateways = {
prod = { gcp = module.prod-to-landing-secondary-vpn.self_link }
}
router_config = {
asn = var.vpn_configs.landing.asn
custom_advertise = var.vpn_configs.landing.custom_advertise
}
tunnels = {
prod-0 = {
bgp_peer = {
address = cidrhost(local.bgp_session_ranges.prod-secondary.0, 2)
asn = var.vpn_configs.prod.asn
}
bgp_session_range = "${cidrhost(local.bgp_session_ranges.prod-secondary.0, 1)}/30"
peer_gateway = "prod"
vpn_gateway_interface = 0
}
prod-1 = {
bgp_peer = {
address = cidrhost(local.bgp_session_ranges.prod-secondary.1, 2)
asn = var.vpn_configs.prod.asn
}
bgp_session_range = "${cidrhost(local.bgp_session_ranges.prod-secondary.1, 1)}/30"
peer_gateway = "prod"
vpn_gateway_interface = 1
}
}
}