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Migrated MIG example to TF 0.12 syntax and compatible modules
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ref: terraform-google-modules#28

```
[/workspace/google/terraform-google-container-vm/examples/managed_instance_group]$ terraform apply -auto-approve
module.gce-container.data.external.spec_as_yaml: Refreshing state...
module.mig.data.google_compute_zones.available: Refreshing state...
module.mig_template.data.google_compute_image.image_family: Refreshing state...
module.gce-container.data.google_compute_image.coreos: Refreshing state...
module.mig_template.data.google_compute_image.image: Refreshing state...
module.cloud-nat.random_string.name_suffix: Creating...
module.http-lb.google_compute_global_address.default: Creating...
module.cloud-nat.random_string.name_suffix: Creation complete after 0s [id=725bw2]
module.http-lb.google_compute_http_health_check.default[0]: Creating...
google_compute_network.default: Creating...
google_compute_firewall.lb-to-instances: Creating...
module.http-lb.google_compute_http_health_check.default[0]: Creation complete after 5s [id=mig-test-lb-backend-0]
module.http-lb.google_compute_global_address.default: Creation complete after 5s [id=mig-test-lb-address]
google_compute_network.default: Still creating... [10s elapsed]
google_compute_firewall.lb-to-instances: Still creating... [10s elapsed]
google_compute_firewall.lb-to-instances: Creation complete after 18s [id=mig-test-firewall-lb-to-instances]
google_compute_network.default: Still creating... [20s elapsed]
google_compute_network.default: Creation complete after 28s [id=mig-net]
google_compute_router.default: Creating...
google_compute_subnetwork.default: Creating...
module.http-lb.google_compute_firewall.default-hc[0]: Creating...
google_compute_router.default: Creation complete after 5s [id=us-east4/mig-net-gw-group1]
module.cloud-nat.google_compute_router_nat.main: Creating...
google_compute_subnetwork.default: Still creating... [10s elapsed]
module.http-lb.google_compute_firewall.default-hc[0]: Still creating... [10s elapsed]
module.cloud-nat.google_compute_router_nat.main: Still creating... [10s elapsed]
module.http-lb.google_compute_firewall.default-hc[0]: Creation complete after 17s [id=mig-test-lb-hc-0]
google_compute_subnetwork.default: Still creating... [20s elapsed]
module.cloud-nat.google_compute_router_nat.main: Creation complete after 17s [id=us-east4/mig-net-gw-group1/mig-net-cloud-nat-group1]
google_compute_subnetwork.default: Creation complete after 30s [id=us-east4/mig-net]
module.mig_template.google_compute_instance_template.tpl: Creating...
module.mig_template.google_compute_instance_template.tpl: Creation complete after 4s [id=mig-net-20190911232353889100000001]
module.mig.google_compute_region_instance_group_manager.mig: Creating...
module.mig.google_compute_region_instance_group_manager.mig: Still creating... [10s elapsed]
module.mig.google_compute_region_instance_group_manager.mig: Creation complete after 20s [id=gl-ivankorniienko-seed-251912/us-east4/mig-net-mig]
module.http-lb.google_compute_backend_service.default[0]: Creating...
module.http-lb.google_compute_backend_service.default[0]: Creation complete after 8s [id=mig-test-lb-backend-0]
module.http-lb.google_compute_url_map.default[0]: Creating...
module.http-lb.google_compute_url_map.default[0]: Creation complete after 5s [id=mig-test-lb-url-map]
module.http-lb.google_compute_target_http_proxy.default[0]: Creating...
module.http-lb.google_compute_target_http_proxy.default[0]: Creation complete after 4s [id=mig-test-lb-http-proxy]
module.http-lb.google_compute_global_forwarding_rule.http[0]: Creating...
module.http-lb.google_compute_global_forwarding_rule.http[0]: Still creating... [10s elapsed]
module.http-lb.google_compute_global_forwarding_rule.http[0]: Creation complete after 18s [id=mig-test-lb]

Apply complete! Resources: 15 added, 0 changed, 0 destroyed.

Outputs:

container = {
  "image" = "gcr.io/google-samples/hello-app:1.0"
}
http_address = 34.102.132.47
http_port = 80
project_id = gl-ivankorniienko-seed-251912
vm_container_label = cos-stable-76-12239-60-0
volumes = []
```
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@ivankorn
ivankorn committed Sep 11, 2019
1 parent eea19bd commit 4ff9f7f
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108 changes: 75 additions & 33 deletions examples/managed_instance_group/main.tf
View file
Original file line number Diff line number Diff line change
Expand Up @@ -19,10 +19,18 @@ locals {
"130.211.0.0/22",
"35.191.0.0/16",
]
target_tags = [
"container-vm-test-mig"]
}

provider "google" {
region = var.region
project = var.project_id
version = "~> 2.7.0"
}

provider "google-beta" {
project = var.project_id
version = "~> 2.7.0"
}

module "gce-container" {
Expand All @@ -33,43 +41,76 @@ module "gce-container" {
}
}

module "mig" {
source = "GoogleCloudPlatform/managed-instance-group/google"
version = "1.1.14"
project = var.project_id
region = var.region
zone = var.zone
name = var.mig_name
machine_type = var.machine_type
compute_image = module.gce-container.source_image
size = var.mig_instance_count
service_port = var.image_port
service_port_name = "http"
http_health_check = "true"
subnetwork = var.subnetwork
subnetwork_project = var.subnetwork_project
ssh_source_ranges = ["0.0.0.0/0"]
target_tags = ["container-vm-test-mig"]

metadata = merge(var.additional_metadata, map("gce-container-declaration", module.gce-container.metadata_value))

instance_labels = {
resource "google_compute_network" "default" {
name = var.network
auto_create_subnetworks = "false"
}

resource "google_compute_subnetwork" "default" {
name = var.network
ip_cidr_range = "10.125.0.0/20"
network = google_compute_network.default.self_link
region = var.region
private_ip_google_access = true
}

# Router and Cloud NAT are required for installing packages from repos (apache, php etc)
resource "google_compute_router" "default" {
name = "${var.network}-gw-group1"
network = google_compute_network.default.self_link
region = var.region
}

module "cloud-nat" {
source = "terraform-google-modules/cloud-nat/google"
version = "1.0.0"
router = google_compute_router.default.name
project_id = var.project_id
region = var.region
name = "${var.network}-cloud-nat-group1"
}

module "mig_template" {
source = "terraform-google-modules/vm/google//modules/instance_template"
version = "1.0.0"
network = google_compute_network.default.self_link
subnetwork = google_compute_subnetwork.default.self_link
service_account = var.service_account
name_prefix = var.network
source_image_family = "cos-stable"
source_image_project = "cos-cloud"
source_image = reverse(split("/", module.gce-container.source_image))[0]
metadata = merge(var.additional_metadata, map("gce-container-declaration", module.gce-container.metadata_value))
tags = [
"container-vm-test-mig"]
labels = {
"container-vm" = module.gce-container.vm_container_label
}
}

service_account_scopes = [
"https://www.googleapis.com/auth/cloud-platform",
]

wait_for_instances = true
module "mig" {
source = "terraform-google-modules/vm/google//modules/mig"
version = "1.0.0"
instance_template = module.mig_template.self_link
region = var.region
hostname = var.network
target_size = var.mig_instance_count
named_ports = [
{
name = "http",
port = var.image_port
}]
network = google_compute_network.default.self_link
subnetwork = var.subnetwork
}

module "http-lb" {
source = "github.com/GoogleCloudPlatform/terraform-google-lb-http"
source = "../../../terraform-google-lb-http/"
project = var.project_id
name = "${var.mig_name}-lb"
firewall_networks = []
target_tags = [module.mig.target_tags]
firewall_networks = [
google_compute_network.default.self_link]
target_tags = local.target_tags

backends = {
"0" = [
Expand All @@ -91,9 +132,10 @@ resource "google_compute_firewall" "lb-to-instances" {

allow {
protocol = "tcp"
ports = [var.image_port]
ports = [
var.image_port]
}

source_ranges = [local.google_load_balancer_ip_ranges]
target_tags = [module.mig.target_tags]
source_ranges = local.google_load_balancer_ip_ranges
target_tags = local.target_tags
}
5 changes: 0 additions & 5 deletions examples/managed_instance_group/outputs.tf
View file
Original file line number Diff line number Diff line change
Expand Up @@ -19,11 +19,6 @@ output "project_id" {
value = var.project_id
}

output "zone" {
description = "The zone the GCE instance was deployed into"
value = var.zone
}

output "vm_container_label" {
description = "The instance label containing container configuration"
value = module.gce-container.vm_container_label
Expand Down
32 changes: 18 additions & 14 deletions examples/managed_instance_group/variables.tf
View file
Original file line number Diff line number Diff line change
Expand Up @@ -18,12 +18,9 @@ variable "project_id" {
description = "The project ID to deploy resource into"
}

variable "subnetwork_project" {
description = "The project ID where the desired subnetwork is provisioned"
}

variable "subnetwork" {
description = "The name of the subnetwork to deploy instances into"
default = "mig-subnet"
}

variable "mig_name" {
Expand All @@ -38,30 +35,37 @@ variable "mig_instance_count" {

variable "image" {
description = "The Docker image to deploy to GCE instances"
default = "gcr.io/google-samples/hello-app:1.0"
}

variable "image_port" {
description = "The port the image exposes for HTTP requests"
}

variable "restart_policy" {
description = "The desired Docker restart policy for the deployed image"
}

variable "machine_type" {
description = "The GCP machine type to deploy"
default = 80
}

variable "region" {
description = "The GCP region to deploy instances into"
}

variable "zone" {
description = "The GCP zone to deploy instances into"
variable "network" {
description = "The GCP network"
default = "mig-net"
}

variable "additional_metadata" {
type = "map"
description = "Additional metadata to attach to the instance"
default = {}
}

variable "service_account" {
type = object({
email = string,
scopes = list(string)
})
default = {
email = ""
scopes = [
"cloud-platform"]
}
}

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