subnetworks.tf

resource "google_compute_subnetwork" "subnet" {
    count = "${length(var.subnetworks)}"
    network = "${google_compute_network.default.self_link}"
    ip_cidr_range = "${element(values(var.subnetworks), count.index)}"
    name = "${var.env}-gcp-${var.region}-${element(keys(var.subnetworks), count.index)}"
}