terraform {
  required_version = ">= 0.14.0"
  required_providers {
    openstack = {
      source  = "terraform-provider-openstack/openstack"
      version = "1.53.0"
    }
  }
}

provider "openstack" {
}

# Private network for the cluster
resource "openstack_networking_network_v2" "net" {
  name                  = "ikt210_g04_network"
  admin_state_up        = true
  port_security_enabled = true
}

# Subnet for the cluster
resource "openstack_networking_subnet_v2" "subnet" {
  name       = "ikt210_g04_subnet"
  network_id = openstack_networking_network_v2.net.id
  cidr       = "10.0.0.0/24"
  ip_version = 4
  gateway_ip = "10.0.0.1"

  allocation_pool {
    start = "10.0.0.30"
    end   = "10.0.0.250"
  }

  dns_nameservers = [
    "158.37.218.20",
    "158.37.242.20",
    "128.39.54.10"
  ]
}

# Router connecting private subnet to external provider network
resource "openstack_networking_router_v2" "router" {
  name                = "ikt210_g04_router"
  external_network_id = "9992655d-0892-4fe0-8a62-d9dac9044be2" # <= provider UUID
}

# Attach subnet to router
resource "openstack_networking_router_interface_v2" "router_if" {
  router_id = openstack_networking_router_v2.router.id
  subnet_id = openstack_networking_subnet_v2.subnet.id
}