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Add support and a test for Global ILB. (GoogleCloudPlatform#8566)
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mmv1/templates/terraform/examples/global_internal_http_lb_with_mig_backend.tf.erb
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| # Global Internal HTTP load balancer with a managed instance group backend | ||
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| # [START cloudloadbalancing_int_http_gce] | ||
| # VPC network | ||
| resource "google_compute_network" "gilb_network" { | ||
| name = "<%= ctx[:vars]['gilb_network_name'] %>" | ||
| provider = google-beta | ||
| auto_create_subnetworks = false | ||
| } | ||
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| # proxy-only subnet | ||
| resource "google_compute_subnetwork" "proxy_subnet" { | ||
| name = "<%= ctx[:vars]['proxy_subnet_name'] %>" | ||
| provider = google-beta | ||
| ip_cidr_range = "10.0.0.0/24" | ||
| region = "europe-west1" | ||
| purpose = "GLOBAL_MANAGED_PROXY" | ||
| role = "ACTIVE" | ||
| network = google_compute_network.gilb_network.id | ||
| } | ||
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| # backend subnet | ||
| resource "google_compute_subnetwork" "gilb_subnet" { | ||
| name = "<%= ctx[:vars]['backend_subnet_name'] %>" | ||
| provider = google-beta | ||
| ip_cidr_range = "10.0.1.0/24" | ||
| region = "europe-west1" | ||
| network = google_compute_network.gilb_network.id | ||
| } | ||
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| # forwarding rule | ||
| resource "google_compute_global_forwarding_rule" "<%= ctx[:primary_resource_id] %>" { | ||
| name = "<%= ctx[:vars]['forwarding_rule_name'] %>" | ||
| provider = google-beta | ||
| depends_on = [google_compute_subnetwork.proxy_subnet] | ||
| ip_protocol = "TCP" | ||
| load_balancing_scheme = "INTERNAL_MANAGED" | ||
| port_range = "80" | ||
| target = google_compute_target_http_proxy.default.id | ||
| network = google_compute_network.gilb_network.id | ||
| subnetwork = google_compute_subnetwork.gilb_subnet.id | ||
| } | ||
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| # HTTP target proxy | ||
| resource "google_compute_target_http_proxy" "default" { | ||
| name = "<%= ctx[:vars]['target_http_proxy_name'] %>" | ||
| provider = google-beta | ||
| url_map = google_compute_url_map.default.id | ||
| } | ||
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| # URL map | ||
| resource "google_compute_url_map" "default" { | ||
| name = "<%= ctx[:vars]['url_map_name'] %>" | ||
| provider = google-beta | ||
| default_service = google_compute_backend_service.default.id | ||
| } | ||
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| # backend service | ||
| resource "google_compute_backend_service" "default" { | ||
| name = "<%= ctx[:vars]['backend_service_name'] %>" | ||
| provider = google-beta | ||
| protocol = "HTTP" | ||
| load_balancing_scheme = "INTERNAL_MANAGED" | ||
| timeout_sec = 10 | ||
| health_checks = [google_compute_health_check.default.id] | ||
| backend { | ||
| group = google_compute_instance_group_manager.mig.instance_group | ||
| balancing_mode = "UTILIZATION" | ||
| capacity_scaler = 1.0 | ||
| } | ||
| } | ||
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| # instance template | ||
| resource "google_compute_instance_template" "instance_template" { | ||
| name = "<%= ctx[:vars]['mig_template_name'] %>" | ||
| provider = google-beta | ||
| machine_type = "e2-small" | ||
| tags = ["http-server"] | ||
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| network_interface { | ||
| network = google_compute_network.gilb_network.id | ||
| subnetwork = google_compute_subnetwork.gilb_subnet.id | ||
| access_config { | ||
| # add external ip to fetch packages | ||
| } | ||
| } | ||
| disk { | ||
| source_image = "debian-cloud/debian-10" | ||
| auto_delete = true | ||
| boot = true | ||
| } | ||
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| # install nginx and serve a simple web page | ||
| metadata = { | ||
| startup-script = <<-EOF1 | ||
| #! /bin/bash | ||
| set -euo pipefail | ||
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| export DEBIAN_FRONTEND=noninteractive | ||
| apt-get update | ||
| apt-get install -y nginx-light jq | ||
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| NAME=$(curl -H "Metadata-Flavor: Google" "http://metadata.google.internal/computeMetadata/v1/instance/hostname") | ||
| IP=$(curl -H "Metadata-Flavor: Google" "http://metadata.google.internal/computeMetadata/v1/instance/network-interfaces/0/ip") | ||
| METADATA=$(curl -f -H "Metadata-Flavor: Google" "http://metadata.google.internal/computeMetadata/v1/instance/attributes/?recursive=True" | jq 'del(.["startup-script"])') | ||
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| cat <<EOF > /var/www/html/index.html | ||
| <pre> | ||
| Name: $NAME | ||
| IP: $IP | ||
| Metadata: $METADATA | ||
| </pre> | ||
| EOF | ||
| EOF1 | ||
| } | ||
| lifecycle { | ||
| create_before_destroy = true | ||
| } | ||
| } | ||
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| # health check | ||
| resource "google_compute_health_check" "default" { | ||
| name = "<%= ctx[:vars]['hc_name'] %>" | ||
| provider = google-beta | ||
| http_health_check { | ||
| port_specification = "USE_SERVING_PORT" | ||
| } | ||
| } | ||
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| # MIG | ||
| resource "google_compute_instance_group_manager" "mig" { | ||
| name = "<%= ctx[:vars]['mig_name'] %>" | ||
| provider = google-beta | ||
| zone = "europe-west1-b" | ||
| version { | ||
| instance_template = google_compute_instance_template.instance_template.id | ||
| name = "primary" | ||
| } | ||
| base_instance_name = "vm" | ||
| target_size = 2 | ||
| } | ||
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| # allow all access from IAP and health check ranges | ||
| resource "google_compute_firewall" "fw-iap" { | ||
| name = "<%= ctx[:vars]['fw_allow_iap_hc_name'] %>" | ||
| provider = google-beta | ||
| direction = "INGRESS" | ||
| network = google_compute_network.gilb_network.id | ||
| source_ranges = ["130.211.0.0/22", "35.191.0.0/16", "35.235.240.0/20"] | ||
| allow { | ||
| protocol = "tcp" | ||
| } | ||
| } | ||
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| # allow http from proxy subnet to backends | ||
| resource "google_compute_firewall" "fw-gilb-to-backends" { | ||
| name = "<%= ctx[:vars]['fw_allow_gilb_to_backends_name'] %>" | ||
| provider = google-beta | ||
| direction = "INGRESS" | ||
| network = google_compute_network.gilb_network.id | ||
| source_ranges = ["10.0.0.0/24"] | ||
| target_tags = ["http-server"] | ||
| allow { | ||
| protocol = "tcp" | ||
| ports = ["80", "443", "8080"] | ||
| } | ||
| } | ||
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| # test instance | ||
| resource "google_compute_instance" "vm-test" { | ||
| name = "<%= ctx[:vars]['vm_test_name'] %>" | ||
| provider = google-beta | ||
| zone = "europe-west1-b" | ||
| machine_type = "e2-small" | ||
| network_interface { | ||
| network = google_compute_network.gilb_network.id | ||
| subnetwork = google_compute_subnetwork.gilb_subnet.id | ||
| } | ||
| boot_disk { | ||
| initialize_params { | ||
| image = "debian-cloud/debian-10" | ||
| } | ||
| } | ||
| } | ||
| # [END cloudloadbalancing_int_http_gce] |