main.tf
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# 查询由 K8s 创建的 NLB
data "aws_lb" "microservices_nlb" {
name = "k8s-ecommerc-microser-9e1de5bd30"
}
# 创建 REST API Gateway
resource "aws_api_gateway_rest_api" "ecommerce_api" {
name = var.api_gateway_name
description = "API Gateway for Ecommerce Microservices"
endpoint_configuration {
types = ["REGIONAL"]
}
tags = {
Environment = var.environment
Project = var.project_name
}
}
# 创建代理资源，捕获所有路径
resource "aws_api_gateway_resource" "proxy" {
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
parent_id = aws_api_gateway_rest_api.ecommerce_api.root_resource_id
path_part = "{proxy+}"
}
# 为代理资源创建 ANY 方法
resource "aws_api_gateway_method" "proxy" {
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
resource_id = aws_api_gateway_resource.proxy.id
http_method = "ANY"
authorization = "NONE"
request_parameters = {
"method.request.path.proxy" = true
}
}
# 为根路径创建方法
resource "aws_api_gateway_method" "root" {
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
resource_id = aws_api_gateway_rest_api.ecommerce_api.root_resource_id
http_method = "ANY"
authorization = "NONE"
}
# 创建 VPC Link
resource "aws_api_gateway_vpc_link" "nlb_vpc_link" {
name = var.vpc_link_name
target_arns = [data.aws_lb.microservices_nlb.arn]
description = "VPC Link for internal Ecommerce NLB"
tags = {
Environment = var.environment
Project = var.project_name
}
}
# 创建与 K8s NLB 的集成 - 代理路径
resource "aws_api_gateway_integration" "proxy_integration" {
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
resource_id = aws_api_gateway_resource.proxy.id
http_method = aws_api_gateway_method.proxy.http_method
integration_http_method = "ANY"
type = "HTTP_PROXY"
uri = "https://${data.aws_lb.microservices_nlb.dns_name}:443/{proxy}"
connection_type = "VPC_LINK"
connection_id = aws_api_gateway_vpc_link.nlb_vpc_link.id
request_parameters = {
"integration.request.path.proxy" = "method.request.path.proxy"
}
}
# 创建与 K8s NLB 的集成 - 根路径
resource "aws_api_gateway_integration" "root_integration" {
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
resource_id = aws_api_gateway_rest_api.ecommerce_api.root_resource_id
http_method = aws_api_gateway_method.root.http_method
integration_http_method = "ANY"
type = "HTTP_PROXY"
uri = "https://${data.aws_lb.microservices_nlb.dns_name}:443/"
connection_type = "VPC_LINK"
connection_id = aws_api_gateway_vpc_link.nlb_vpc_link.id
}
# 为代理路径添加方法响应
resource "aws_api_gateway_method_response" "proxy_200" {
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
resource_id = aws_api_gateway_resource.proxy.id
http_method = aws_api_gateway_method.proxy.http_method
status_code = "200"
}
resource "aws_api_gateway_method_response" "proxy_500" {
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
resource_id = aws_api_gateway_resource.proxy.id
http_method = aws_api_gateway_method.proxy.http_method
status_code = "500"
}
# 为代理路径添加集成响应
resource "aws_api_gateway_integration_response" "proxy_200" {
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
resource_id = aws_api_gateway_resource.proxy.id
http_method = aws_api_gateway_method.proxy.http_method
status_code = aws_api_gateway_method_response.proxy_200.status_code
depends_on = [aws_api_gateway_integration.proxy_integration]
}
resource "aws_api_gateway_integration_response" "proxy_500" {
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
resource_id = aws_api_gateway_resource.proxy.id
http_method = aws_api_gateway_method.proxy.http_method
status_code = aws_api_gateway_method_response.proxy_500.status_code
selection_pattern = "5\\d{2}"
depends_on = [aws_api_gateway_integration.proxy_integration]
}
# 为根路径添加方法响应
resource "aws_api_gateway_method_response" "root_200" {
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
resource_id = aws_api_gateway_rest_api.ecommerce_api.root_resource_id
http_method = aws_api_gateway_method.root.http_method
status_code = "200"
}
resource "aws_api_gateway_method_response" "root_500" {
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
resource_id = aws_api_gateway_rest_api.ecommerce_api.root_resource_id
http_method = aws_api_gateway_method.root.http_method
status_code = "500"
}
# 为根路径添加集成响应
resource "aws_api_gateway_integration_response" "root_200" {
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
resource_id = aws_api_gateway_rest_api.ecommerce_api.root_resource_id
http_method = aws_api_gateway_method.root.http_method
status_code = aws_api_gateway_method_response.root_200.status_code
depends_on = [aws_api_gateway_integration.root_integration]
}
resource "aws_api_gateway_integration_response" "root_500" {
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
resource_id = aws_api_gateway_rest_api.ecommerce_api.root_resource_id
http_method = aws_api_gateway_method.root.http_method
status_code = aws_api_gateway_method_response.root_500.status_code
selection_pattern = "5\\d{2}"
depends_on = [aws_api_gateway_integration.root_integration]
}
# 创建部署
resource "aws_api_gateway_deployment" "deployment" {
depends_on = [
aws_api_gateway_integration.proxy_integration,
aws_api_gateway_integration.root_integration,
aws_api_gateway_integration_response.proxy_200,
aws_api_gateway_integration_response.proxy_500,
aws_api_gateway_integration_response.root_200,
aws_api_gateway_integration_response.root_500,
aws_api_gateway_vpc_link.nlb_vpc_link
]
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
triggers = {
redeployment = sha1(jsonencode([
aws_api_gateway_resource.proxy.id,
aws_api_gateway_method.proxy.id,
aws_api_gateway_method.root.id,
aws_api_gateway_integration.proxy_integration.id,
aws_api_gateway_integration.root_integration.id,
aws_api_gateway_vpc_link.nlb_vpc_link.id
]))
}
lifecycle {
create_before_destroy = true
}
}
# 创建阶段
resource "aws_api_gateway_stage" "prod" {
deployment_id = aws_api_gateway_deployment.deployment.id
rest_api_id = aws_api_gateway_rest_api.ecommerce_api.id
stage_name = var.api_stage_name
}
# 自定义域名
resource "aws_api_gateway_domain_name" "api_domain" {
domain_name = var.api_domain_name
# 直接使用已有的证书 ARN - 选择其中一个证书
regional_certificate_arn = "arn:aws:acm:us-east-1:319998871902:certificate/5237ec0b-cd06-407f-b4b6-0820ee3406d6" # 或者使用另一个证书
endpoint_configuration {
types = ["REGIONAL"]
}
tags = {
Environment = var.environment
Project = var.project_name
}
}
# API 映射到自定义域名
resource "aws_api_gateway_base_path_mapping" "api_mapping" {
api_id = aws_api_gateway_rest_api.ecommerce_api.id
domain_name = aws_api_gateway_domain_name.api_domain.domain_name
stage_name = aws_api_gateway_stage.prod.stage_name
}