resource "openstack_networking_network_v2" "main-private-network" {
  name           = var.main_private_network["name"]
  admin_state_up = "true"
  external       = "false"
  description = var.main_private_network.description
  dns_domain = var.dns-zone
  mtu            = var.mtu_size
  port_security_enabled = true
  shared = false
  region = var.main_region
}

resource "openstack_networking_subnet_v2" "main-private-subnet" {
  name            = var.main_private_subnet.name
  description = var.main_private_subnet.description
  network_id      = openstack_networking_network_v2.main-private-network.id
  cidr            = var.main_private_subnet.cidr
  gateway_ip      = var.main_private_subnet.gateway_ip
  dns_nameservers = var.resolvers_ip
  ip_version = 4
  enable_dhcp = true
  allocation_pool {
    start = var.main_private_subnet.allocation_start
    end   = var.main_private_subnet.allocation_end
  }
}

# Shell command:
# openstack --os-cloud d4s-pre router create --description "D4Science Preprod main router" --external-gateway external-network d4s-pre-cloud-external-router
# resource "openstack_networking_router_v2" "external-router" {
#   name                = var.external_router.name
#   description = var.external_router.description
#   external_network_id = var.external_network.id
#   enable_snat = true
# }

# Router interface configuration
resource "openstack_networking_router_interface_v2" "private-network-routing" {
  # router_id = openstack_networking_router_v2.external-router.id
  router_id = var.external_router.id
  subnet_id = openstack_networking_subnet_v2.main-private-subnet.id
}