다음 예시를 사용하여 Cloud CDN이 사용 설정된 샘플 백엔드를 배포합니다.
Google Cloud에서 Terraform을 처음 사용하는 경우 Terraform 시작하기를 참조하세요.
Cloud Storage 버킷 사용
다음 샘플에서는 공개 Cloud Storage 버킷으로 Cloud CDN을 구성합니다. 이 샘플에는 부하 분산 및 캐싱 구성도 포함되어 있습니다. 필요에 따라 구성을 수정할 수 있습니다.
샘플의 각 섹션에 관한 자세한 내용은 백엔드 버킷 설정을 참고하세요.
# Cloud Storage bucket
resource "random_id" "bucket_prefix" {
byte_length = 8
}
resource "google_storage_bucket" "default" {
name = "${random_id.bucket_prefix.hex}-my-bucket"
location = "us-east1"
uniform_bucket_level_access = true
storage_class = "STANDARD"
// delete bucket and contents on destroy.
force_destroy = true
// Assign specialty files
website {
main_page_suffix = "index.html"
not_found_page = "404.html"
}
}
# make bucket public
resource "google_storage_bucket_iam_member" "default" {
bucket = google_storage_bucket.default.name
role = "roles/storage.objectViewer"
member = "allUsers"
}
resource "google_storage_bucket_object" "index_page" {
name = "index-page"
bucket = google_storage_bucket.default.name
content = <<-EOT
<html><body>
<h1>Congratulations on setting up Google Cloud CDN with Storage backend!</h1>
</body></html>
EOT
}
resource "google_storage_bucket_object" "error_page" {
name = "404-page"
bucket = google_storage_bucket.default.name
content = <<-EOT
<html><body>
<h1>404 Error: Object you are looking for is no longer available!</h1>
</body></html>
EOT
}
# image object for testing, try to access http://<your_lb_ip_address>/test.jpg
resource "google_storage_bucket_object" "test_image" {
name = "test-object"
# Uncomment and add valid path to an object.
# source = "/path/to/an/object"
# content_type = "image/jpeg"
# Delete after uncommenting above source and content_type attributes
content = "Data as string to be uploaded"
content_type = "text/plain"
bucket = google_storage_bucket.default.name
}
# reserve IP address
resource "google_compute_global_address" "default" {
name = "example-ip"
}
# forwarding rule
resource "google_compute_global_forwarding_rule" "default" {
name = "http-lb-forwarding-rule"
ip_protocol = "TCP"
load_balancing_scheme = "EXTERNAL"
port_range = "80"
target = google_compute_target_http_proxy.default.id
ip_address = google_compute_global_address.default.id
}
# http proxy
resource "google_compute_target_http_proxy" "default" {
name = "http-lb-proxy"
url_map = google_compute_url_map.default.id
}
# url map
resource "google_compute_url_map" "default" {
name = "http-lb"
default_service = google_compute_backend_bucket.default.id
}
# backend bucket with CDN policy with default ttl settings
resource "google_compute_backend_bucket" "default" {
name = "cat-backend-bucket"
description = "Contains beautiful images"
bucket_name = google_storage_bucket.default.name
enable_cdn = true
cdn_policy {
cache_mode = "CACHE_ALL_STATIC"
client_ttl = 3600
default_ttl = 3600
max_ttl = 86400
negative_caching = true
serve_while_stale = 86400
}
}MIG 및 커스텀 헤더 사용
Terraform 리소스를 사용하여 Cloud CDN 백엔드 서비스와 커스텀 요청 및 응답 헤더를 포함하는 외부 HTTP 부하 분산기를 가져올 수 있습니다.
부하 분산기 설정에 대한 자세한 내용은 기본 설정 가이드를 참조하세요.
# VPC
resource "google_compute_network" "default" {
name = "l7-xlb-network"
provider = google-beta
auto_create_subnetworks = false
}
# backend subnet
resource "google_compute_subnetwork" "default" {
name = "l7-xlb-subnet"
provider = google-beta
ip_cidr_range = "10.0.1.0/24"
region = "us-central1"
network = google_compute_network.default.id
}
# reserved IP address
resource "google_compute_global_address" "default" {
provider = google-beta
name = "l7-xlb-static-ip"
}
# forwarding rule
resource "google_compute_global_forwarding_rule" "default" {
name = "l7-xlb-forwarding-rule"
provider = google-beta
ip_protocol = "TCP"
load_balancing_scheme = "EXTERNAL"
port_range = "80"
target = google_compute_target_http_proxy.default.id
ip_address = google_compute_global_address.default.id
}
# http proxy
resource "google_compute_target_http_proxy" "default" {
name = "l7-xlb-target-http-proxy"
provider = google-beta
url_map = google_compute_url_map.default.id
}
# url map
resource "google_compute_url_map" "default" {
name = "l7-xlb-url-map"
provider = google-beta
default_service = google_compute_backend_service.default.id
}
# backend service with custom request and response headers
resource "google_compute_backend_service" "default" {
name = "l7-xlb-backend-service"
provider = google-beta
protocol = "HTTP"
port_name = "my-port"
load_balancing_scheme = "EXTERNAL"
timeout_sec = 10
enable_cdn = true
custom_request_headers = ["X-Client-Geo-Location: {client_region_subdivision}, {client_city}"]
custom_response_headers = ["X-Cache-Hit: {cdn_cache_status}"]
health_checks = [google_compute_health_check.default.id]
backend {
group = google_compute_instance_group_manager.default.instance_group
balancing_mode = "UTILIZATION"
capacity_scaler = 1.0
}
}
# instance template
resource "google_compute_instance_template" "default" {
name = "l7-xlb-mig-template"
provider = google-beta
machine_type = "e2-small"
tags = ["allow-health-check"]
network_interface {
network = google_compute_network.default.id
subnetwork = google_compute_subnetwork.default.id
access_config {
# add external ip to fetch packages
}
}
disk {
source_image = "debian-cloud/debian-12"
auto_delete = true
boot = true
}
# install nginx and serve a simple web page
metadata = {
startup-script = <<-EOF1
#! /bin/bash
set -euo pipefail
export DEBIAN_FRONTEND=noninteractive
apt-get update
apt-get install -y nginx-light jq
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"])')
cat <<EOF > /var/www/html/index.html
<pre>
Name: $NAME
IP: $IP
Metadata: $METADATA
</pre>
EOF
EOF1
}
lifecycle {
create_before_destroy = true
}
}
# health check
resource "google_compute_health_check" "default" {
name = "l7-xlb-hc"
provider = google-beta
http_health_check {
port_specification = "USE_SERVING_PORT"
}
}
# MIG
resource "google_compute_instance_group_manager" "default" {
name = "l7-xlb-mig1"
provider = google-beta
zone = "us-central1-c"
named_port {
name = "http"
port = 8080
}
version {
instance_template = google_compute_instance_template.default.id
name = "primary"
}
base_instance_name = "vm"
target_size = 2
}
# allow access from health check ranges
resource "google_compute_firewall" "default" {
name = "l7-xlb-fw-allow-hc"
provider = google-beta
direction = "INGRESS"
network = google_compute_network.default.id
source_ranges = ["130.211.0.0/22", "35.191.0.0/16"]
allow {
protocol = "tcp"
}
target_tags = ["allow-health-check"]
}