253 lines
7.4 KiB
HCL
253 lines
7.4 KiB
HCL
/**
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* Copyright 2019 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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locals {
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attached_disks = {
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for disk in var.attached_disks :
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disk.name => merge(disk, {
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options = disk.options == null ? var.attached_disk_defaults : disk.options
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})
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}
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attached_disks_pairs = {
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for pair in setproduct(keys(local.names), keys(local.attached_disks)) :
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"${pair[0]}-${pair[1]}" => { name = pair[0], disk_name = pair[1] }
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}
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names = (
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var.use_instance_template
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? { "${var.name}" = 0 }
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: { for i in range(0, var.instance_count) : "${var.name}-${i + 1}" => i }
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)
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service_account_email = (
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var.service_account_create
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? (
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length(google_service_account.service_account) > 0
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? google_service_account.service_account[0].email
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: null
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)
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: var.service_account
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)
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service_account_scopes = (
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length(var.service_account_scopes) > 0
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? var.service_account_scopes
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: (
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var.service_account_create
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? ["https://www.googleapis.com/auth/cloud-platform"]
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: [
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"https://www.googleapis.com/auth/devstorage.read_only",
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"https://www.googleapis.com/auth/logging.write",
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"https://www.googleapis.com/auth/monitoring.write"
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]
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)
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)
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}
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resource "google_compute_disk" "disks" {
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for_each = var.use_instance_template ? {} : local.attached_disks_pairs
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project = var.project_id
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zone = var.zone
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name = each.key
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type = local.attached_disks[each.value.disk_name].options.type
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size = local.attached_disks[each.value.disk_name].size
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labels = merge(var.labels, {
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disk_name = local.attached_disks[each.value.disk_name].name
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disk_type = local.attached_disks[each.value.disk_name].options.type
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image = local.attached_disks[each.value.disk_name].image
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})
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}
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resource "google_compute_instance" "default" {
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for_each = var.use_instance_template ? {} : local.names
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project = var.project_id
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zone = var.zone
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name = each.key
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hostname = var.hostname
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description = "Managed by the compute-vm Terraform module."
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tags = var.tags
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machine_type = var.instance_type
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min_cpu_platform = var.min_cpu_platform
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can_ip_forward = var.options.can_ip_forward
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allow_stopping_for_update = var.options.allow_stopping_for_update
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deletion_protection = var.options.deletion_protection
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metadata = var.metadata
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labels = var.labels
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dynamic attached_disk {
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for_each = {
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for resource_name, pair in local.attached_disks_pairs :
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resource_name => local.attached_disks[pair.disk_name] if pair.name == each.key
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}
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iterator = config
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content {
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device_name = config.value.name
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mode = config.value.options.mode
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source = google_compute_disk.disks[config.key].name
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}
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}
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boot_disk {
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initialize_params {
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type = var.boot_disk.type
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image = var.boot_disk.image
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size = var.boot_disk.size
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}
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}
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dynamic network_interface {
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for_each = var.network_interfaces
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iterator = config
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content {
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network = config.value.network
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subnetwork = config.value.subnetwork
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network_ip = config.value.addresses == null ? null : (
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length(config.value.addresses.internal) == 0
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? null
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: config.value.addresses.internal[each.value]
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)
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dynamic access_config {
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for_each = config.value.nat ? [config.value.addresses] : []
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iterator = nat_addresses
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content {
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nat_ip = nat_addresses.value == null ? null : (
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length(nat_addresses.value) == 0 ? null : nat_addresses.value[each.value]
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)
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}
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}
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}
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}
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scheduling {
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automatic_restart = ! var.options.preemptible
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on_host_maintenance = var.options.preemptible ? "TERMINATE" : "MIGRATE"
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preemptible = var.options.preemptible
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}
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dynamic scratch_disk {
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for_each = [
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for i in range(0, var.scratch_disks.count) : var.scratch_disks.interface
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]
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iterator = config
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content {
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interface = config.value
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}
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}
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service_account {
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email = local.service_account_email
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scopes = local.service_account_scopes
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}
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# guest_accelerator
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# shielded_instance_config
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}
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resource "google_compute_instance_template" "default" {
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count = var.use_instance_template ? 1 : 0
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project = var.project_id
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region = var.region
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name_prefix = "${var.name}-"
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description = "Managed by the compute-vm Terraform module."
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tags = var.tags
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machine_type = var.instance_type
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min_cpu_platform = var.min_cpu_platform
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can_ip_forward = var.options.can_ip_forward
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metadata = var.metadata
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labels = var.labels
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disk {
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source_image = var.boot_disk.image
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disk_type = var.boot_disk.type
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disk_size_gb = var.boot_disk.size
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boot = true
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}
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dynamic disk {
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for_each = local.attached_disks
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iterator = config
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content {
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auto_delete = config.value.options.auto_delete
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device_name = config.value.name
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disk_type = config.value.options.type
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disk_size_gb = config.value.size
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mode = config.value.options.mode
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source_image = config.value.image
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source = config.value.options.source
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type = "PERSISTENT"
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}
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}
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dynamic network_interface {
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for_each = var.network_interfaces
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iterator = config
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content {
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network = config.value.network
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subnetwork = config.value.subnetwork
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dynamic access_config {
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for_each = config.value.nat ? [""] : []
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content {}
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}
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}
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}
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scheduling {
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automatic_restart = ! var.options.preemptible
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on_host_maintenance = var.options.preemptible ? "TERMINATE" : "MIGRATE"
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preemptible = var.options.preemptible
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}
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service_account {
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email = local.service_account_email
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scopes = local.service_account_scopes
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}
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lifecycle {
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create_before_destroy = true
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}
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}
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resource "google_compute_instance_group" "unmanaged" {
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count = (
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var.group != null && ! var.use_instance_template ? 1 : 0
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)
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project = var.project_id
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network = (
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length(var.network_interfaces) > 0
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? var.network_interfaces.0.network
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: ""
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)
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zone = var.zone
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name = var.name
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description = "Terraform-managed."
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instances = [
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for name, instance in google_compute_instance.default : instance.self_link
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]
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dynamic named_port {
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for_each = var.group.named_ports != null ? var.group.named_ports : {}
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iterator = config
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content {
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name = config.key
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port = config.value
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}
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}
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}
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resource "google_service_account" "service_account" {
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count = var.service_account_create ? 1 : 0
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project = var.project_id
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account_id = "tf-vm-${var.name}"
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display_name = "Terraform VM ${var.name}."
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}
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