peeredwrkld.tf

resource "google_compute_network" "wrkld" {
  count = sum([ for k,v in var.wrkld_cidrs : length(v) ]) > 0 ? 1 : 0

  name = "${var.prefix}-wrklds"
  auto_create_subnetworks = false
  delete_default_routes_on_create = true
}

resource "google_compute_firewall" "wrkld_allowall" {
  count = sum([ for k,v in var.wrkld_cidrs : length(v) ]) > 0 ? 1 : 0

  name = "${var.prefix}-fw-wrklds-allowall"
  network = google_compute_network.wrkld[0].self_link
  allow {
    protocol = "all"
  }
  source_ranges = ["0.0.0.0/0"]
}

resource "google_compute_network_peering" "right_wrkld" {
  count = sum([ for k,v in var.wrkld_cidrs : length(v) ]) > 0 ? 1 : 0

  name = "${var.prefix}-peer-right-wrkld"
  network = google_compute_network.right.self_link
  peer_network = google_compute_network.wrkld[0].self_link
  export_custom_routes = true
}

resource "google_compute_network_peering" "wrkld_right" {
  count = sum([ for k,v in var.wrkld_cidrs : length(v) ]) > 0 ? 1 : 0

  name = "${var.prefix}-peer-wrkld-right"
  network = google_compute_network.wrkld[0].self_link
  peer_network = google_compute_network.right.self_link
  import_custom_routes = true
}

resource "google_compute_subnetwork" "wrklds0" {
  for_each = toset(var.wrkld_cidrs[keys(var.wrkld_cidrs)[0]])

  name = "${var.prefix}-wrkld-${replace(split("/", each.value)[0], ".", "-" )}"
  ip_cidr_range = each.value
  region = keys(var.wrkld_cidrs)[0]
  network = google_compute_network.wrkld[0].id
}

resource "google_compute_subnetwork" "wrklds1" {
  for_each = toset(var.wrkld_cidrs[keys(var.wrkld_cidrs)[1]])

  name = "${var.prefix}-wrkld-${replace(split("/", each.value)[0], ".", "-" )}"
  ip_cidr_range = each.value
  region = keys(var.wrkld_cidrs)[1]
  network = google_compute_network.wrkld[0].id
}

#######################

resource "google_compute_instance" "srv0" {
  name = "${var.prefix}-srv0"
  zone = "${values(google_compute_subnetwork.wrklds0)[0].region}-b"
  machine_type = "e2-medium"

  boot_disk {
    initialize_params {
      image = "ubuntu-os-cloud/ubuntu-2204-lts"
    }
  }

  network_interface {
    subnetwork = values(google_compute_subnetwork.wrklds0)[0].id
  }

  metadata_startup_script =<<EOT
apt update
apt install nginx -y
EOT
}