299a9ae7ba
Also, do not create unneeded resources (target pools are charged and should only be created when needed).
400 lines
8.7 KiB
HCL
400 lines
8.7 KiB
HCL
#################################################
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##
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## General
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##
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resource "google_compute_network" "main" {
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name = "${var.prefix}-network"
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auto_create_subnetworks = false
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}
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resource "google_compute_subnetwork" "main" {
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name = "${var.prefix}-subnet"
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network = google_compute_network.main.name
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ip_cidr_range = var.private_network_cidr
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region = var.region
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}
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resource "google_compute_firewall" "deny_all" {
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name = "${var.prefix}-default-firewall"
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network = google_compute_network.main.name
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priority = 1000
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source_ranges = ["0.0.0.0/0"]
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deny {
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protocol = "all"
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}
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}
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resource "google_compute_firewall" "allow_internal" {
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name = "${var.prefix}-internal-firewall"
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network = google_compute_network.main.name
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priority = 500
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source_ranges = [var.private_network_cidr]
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allow {
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protocol = "all"
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}
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}
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resource "google_compute_firewall" "ssh" {
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count = length(var.ssh_whitelist) > 0 ? 1 : 0
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name = "${var.prefix}-ssh-firewall"
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network = google_compute_network.main.name
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priority = 100
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source_ranges = var.ssh_whitelist
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allow {
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protocol = "tcp"
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ports = ["22"]
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}
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}
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resource "google_compute_firewall" "api_server" {
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count = length(var.api_server_whitelist) > 0 ? 1 : 0
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name = "${var.prefix}-api-server-firewall"
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network = google_compute_network.main.name
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priority = 100
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source_ranges = var.api_server_whitelist
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allow {
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protocol = "tcp"
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ports = ["6443"]
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}
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}
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resource "google_compute_firewall" "nodeport" {
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count = length(var.nodeport_whitelist) > 0 ? 1 : 0
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name = "${var.prefix}-nodeport-firewall"
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network = google_compute_network.main.name
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priority = 100
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source_ranges = var.nodeport_whitelist
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allow {
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protocol = "tcp"
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ports = ["30000-32767"]
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}
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}
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resource "google_compute_firewall" "ingress_http" {
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count = length(var.ingress_whitelist) > 0 ? 1 : 0
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name = "${var.prefix}-http-ingress-firewall"
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network = google_compute_network.main.name
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priority = 100
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source_ranges = var.ingress_whitelist
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allow {
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protocol = "tcp"
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ports = ["80"]
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}
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}
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resource "google_compute_firewall" "ingress_https" {
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count = length(var.ingress_whitelist) > 0 ? 1 : 0
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name = "${var.prefix}-https-ingress-firewall"
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network = google_compute_network.main.name
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priority = 100
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source_ranges = var.ingress_whitelist
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allow {
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protocol = "tcp"
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ports = ["443"]
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}
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}
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#################################################
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##
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## Local variables
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##
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locals {
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master_target_list = [
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for name, machine in google_compute_instance.master :
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"${machine.zone}/${machine.name}"
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]
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worker_target_list = [
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for name, machine in google_compute_instance.worker :
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"${machine.zone}/${machine.name}"
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]
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master_disks = flatten([
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for machine_name, machine in var.machines : [
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for disk_name, disk in machine.additional_disks : {
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"${machine_name}-${disk_name}" = {
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"machine_name": machine_name,
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"machine": machine,
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"disk_size": disk.size,
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"disk_name": disk_name
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}
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}
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]
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if machine.node_type == "master"
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])
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worker_disks = flatten([
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for machine_name, machine in var.machines : [
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for disk_name, disk in machine.additional_disks : {
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"${machine_name}-${disk_name}" = {
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"machine_name": machine_name,
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"machine": machine,
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"disk_size": disk.size,
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"disk_name": disk_name
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}
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}
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]
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if machine.node_type == "worker"
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])
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}
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#################################################
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##
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## Master
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##
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resource "google_compute_address" "master" {
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for_each = {
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for name, machine in var.machines :
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name => machine
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if machine.node_type == "master"
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}
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name = "${var.prefix}-${each.key}-pip"
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address_type = "EXTERNAL"
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region = var.region
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}
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resource "google_compute_disk" "master" {
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for_each = {
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for item in local.master_disks :
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keys(item)[0] => values(item)[0]
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}
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name = "${var.prefix}-${each.key}"
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type = var.master_additional_disk_type
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zone = each.value.machine.zone
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size = each.value.disk_size
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physical_block_size_bytes = 4096
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}
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resource "google_compute_attached_disk" "master" {
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for_each = {
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for item in local.master_disks :
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keys(item)[0] => values(item)[0]
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}
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disk = google_compute_disk.master[each.key].id
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instance = google_compute_instance.master[each.value.machine_name].id
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}
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resource "google_compute_instance" "master" {
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for_each = {
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for name, machine in var.machines :
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name => machine
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if machine.node_type == "master"
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}
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name = "${var.prefix}-${each.key}"
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machine_type = each.value.size
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zone = each.value.zone
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tags = ["master"]
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boot_disk {
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initialize_params {
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image = each.value.boot_disk.image_name
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size = each.value.boot_disk.size
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}
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}
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network_interface {
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subnetwork = google_compute_subnetwork.main.name
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access_config {
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nat_ip = google_compute_address.master[each.key].address
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}
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}
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metadata = {
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ssh-keys = "ubuntu:${trimspace(file(pathexpand(var.ssh_pub_key)))}"
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}
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service_account {
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email = var.master_sa_email
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scopes = var.master_sa_scopes
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}
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# Since we use google_compute_attached_disk we need to ignore this
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lifecycle {
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ignore_changes = [attached_disk]
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}
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scheduling {
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preemptible = var.master_preemptible
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automatic_restart = !var.master_preemptible
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}
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}
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resource "google_compute_forwarding_rule" "master_lb" {
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count = length(var.api_server_whitelist) > 0 ? 1 : 0
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name = "${var.prefix}-master-lb-forward-rule"
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port_range = "6443"
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target = google_compute_target_pool.master_lb[count.index].id
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}
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resource "google_compute_target_pool" "master_lb" {
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count = length(var.api_server_whitelist) > 0 ? 1 : 0
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name = "${var.prefix}-master-lb-pool"
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instances = local.master_target_list
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}
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#################################################
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##
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## Worker
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##
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resource "google_compute_disk" "worker" {
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for_each = {
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for item in local.worker_disks :
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keys(item)[0] => values(item)[0]
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}
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name = "${var.prefix}-${each.key}"
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type = var.worker_additional_disk_type
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zone = each.value.machine.zone
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size = each.value.disk_size
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physical_block_size_bytes = 4096
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}
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resource "google_compute_attached_disk" "worker" {
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for_each = {
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for item in local.worker_disks :
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keys(item)[0] => values(item)[0]
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}
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disk = google_compute_disk.worker[each.key].id
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instance = google_compute_instance.worker[each.value.machine_name].id
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}
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resource "google_compute_address" "worker" {
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for_each = {
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for name, machine in var.machines :
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name => machine
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if machine.node_type == "worker"
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}
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name = "${var.prefix}-${each.key}-pip"
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address_type = "EXTERNAL"
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region = var.region
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}
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resource "google_compute_instance" "worker" {
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for_each = {
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for name, machine in var.machines :
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name => machine
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if machine.node_type == "worker"
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}
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name = "${var.prefix}-${each.key}"
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machine_type = each.value.size
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zone = each.value.zone
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tags = ["worker"]
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boot_disk {
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initialize_params {
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image = each.value.boot_disk.image_name
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size = each.value.boot_disk.size
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}
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}
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network_interface {
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subnetwork = google_compute_subnetwork.main.name
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access_config {
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nat_ip = google_compute_address.worker[each.key].address
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}
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}
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metadata = {
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ssh-keys = "ubuntu:${trimspace(file(pathexpand(var.ssh_pub_key)))}"
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}
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service_account {
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email = var.worker_sa_email
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scopes = var.worker_sa_scopes
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}
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# Since we use google_compute_attached_disk we need to ignore this
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lifecycle {
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ignore_changes = [attached_disk]
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}
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scheduling {
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preemptible = var.worker_preemptible
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automatic_restart = !var.worker_preemptible
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}
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}
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resource "google_compute_address" "worker_lb" {
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count = length(var.ingress_whitelist) > 0 ? 1 : 0
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name = "${var.prefix}-worker-lb-address"
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address_type = "EXTERNAL"
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region = var.region
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}
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resource "google_compute_forwarding_rule" "worker_http_lb" {
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count = length(var.ingress_whitelist) > 0 ? 1 : 0
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name = "${var.prefix}-worker-http-lb-forward-rule"
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ip_address = google_compute_address.worker_lb[count.index].address
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port_range = "80"
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target = google_compute_target_pool.worker_lb[count.index].id
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}
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resource "google_compute_forwarding_rule" "worker_https_lb" {
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count = length(var.ingress_whitelist) > 0 ? 1 : 0
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name = "${var.prefix}-worker-https-lb-forward-rule"
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ip_address = google_compute_address.worker_lb[count.index].address
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port_range = "443"
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target = google_compute_target_pool.worker_lb[count.index].id
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}
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resource "google_compute_target_pool" "worker_lb" {
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count = length(var.ingress_whitelist) > 0 ? 1 : 0
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name = "${var.prefix}-worker-lb-pool"
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instances = local.worker_target_list
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}
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