Serverless App Engine：使用Terraform為SAE應用綁定SLB

使用的資源

建立應用並綁定SLB

本樣本以在華南1（深圳）地區下為應用綁定SLB為例，介紹如何通過鏡像方式自訂部署應用，並同時為應用綁定SLB。

1. 建立一個用於存放Terraform資源的專案檔夾，命名為terraform。

2. 執行以下命令，進入專案目錄。

   cd terraform

3. 建立名為main.tf的設定檔。

   內容如下：

   # 供應商配置
   provider "alicloud" {
     region = var.region_id
   }
   
   # 變數定義
   variable "region_id" {
     type    = string
     default = "cn-shenzhen"
   }
   
   variable "app_name" {
     description = "應用程式名稱"
     type        = string
     default     = "app-slb"
   }
   
   variable "image_url" {
     description = "鏡像地址"
     type        = string
     default     = "registry.cn-hangzhou.aliyuncs.com/google_containers/nginx-slim:0.9"
   }
   
   variable "namespace_id" {
     description = "命名空間ID"
     type        = string
     default     = "cn-shenzhen:demo"
   }
   
   variable "namespace_name" {
     description = "命名空間名稱"
     type        = string
     default     = "demo"
   }
   
   # 命名空間
   resource "alicloud_sae_namespace" "default" {
     namespace_description = var.namespace_description
     namespace_id          = var.namespace_id
     namespace_name        = var.namespace_name
   }
   
   # VPC
   resource "alicloud_vpc" "default" {
     vpc_name   = var.name
     cidr_block = "10.4.0.0/16"
   }
   
   # VSwitch
   resource "alicloud_vswitch" "default" {
     vswitch_name = var.name
     cidr_block   = "10.4.0.0/24"
     vpc_id       = alicloud_vpc.default.id
     zone_id      = var.zone_id
   }
   
   # 安全性群組
   resource "alicloud_security_group" "sg" {
     name        = var.name
     description = var.description
     vpc_id      = alicloud_vpc.default.id
   }
   
   resource "alicloud_security_group_rule" "sg_rule" {
     type              = "ingress"
     ip_protocol       = "tcp"
     nic_type          = "intranet"
     policy            = "accept"
     port_range        = var.port_range
     priority          = 1
     security_group_id = alicloud_security_group.sg.id
     cidr_ip           = var.cidr_ip
   }
   
   # 應用配置
   resource "alicloud_sae_application" "manual" {
     app_name          = var.app_name
     app_description   = var.app_description
     deploy            = true
     image_url         = var.image_url
     namespace_id      = alicloud_sae_namespace.default.id
     vswitch_id        = alicloud_vswitch.default.id
     vpc_id            = alicloud_vpc.default.id
     security_group_id = alicloud_security_group.sg.id
     package_type      = var.package_type
     timezone          = "Asia/Beijing"
     replicas          = var.replicas
     cpu               = var.cpu
     memory            = var.memory
   }
   
   # SLB配置
   resource "alicloud_slb_load_balancer" "slb" {
     load_balancer_name = "prod"
     address_type       = "internet"
     load_balancer_spec = "slb.s2.small"
     vswitch_id         = alicloud_vswitch.default.id
   }
   
   resource "alicloud_sae_load_balancer_internet" "example" {
     app_id          = alicloud_sae_application.manual.id
     internet_slb_id = alicloud_slb_load_balancer.slb.id
     internet {
       protocol    = "HTTP"
       port        = var.port
       target_port = 80
     }
   }
   
   # 其他變數定義
   variable "namespace_description" {
     description = "Namespace Description"
     default     = "a namespace"
   }
   
   variable "name" {
     default     = "tf"
     description = "The name of the security group rule"
     type        = string
   }
   
   variable "description" {
     default     = "The description of the security group rule"
     description = "The description of the security group rule"
     type        = string
   }
   
   variable "port_range" {
     default     = "1/65535"
     description = "The port range of the security group rule"
     type        = string
   }
   
   variable "cidr_ip" {
     description = "cidr blocks used to create a new security group rule"
     type        = string
     default     = "0.0.0.0/0"
   }
   
   variable "zone_id" {
     description = "Availability Zone ID"
     type        = string
     default     = "cn-shenzhen-a"
   }
   
   variable "app_description" {
     default     = "description created by Terraform"
     description = "The description of the application"
     type        = string
   }
   
   variable "package_type" {
     default     = "Image"
     description = "The package type of the application"
     type        = string
   }
   
   variable "cpu" {
     default     = "500"
     description = "The cpu of the application, in unit of millicore"
     type        = string
   }
   
   variable "memory" {
     default     = "1024"
     description = "The memory of the application, in unit of MB"
     type        = string
   }
   
   variable "replicas" {
     default     = "1"
     description = "The replicas of the application"
     type        = string
   }
   
   variable "port" {
     description = "The port of SLB"
     type        = string
     default     = "8000"
   }
   
   # 輸出
   output "namespace_id" {
     value       = var.namespace_id
     description = "Namespace ID"
   }
   
   output "app_id" {
     description = "The id of the application"
     value       = alicloud_sae_application.manual.id
   }
   
   output "app_name" {
     description = "The name of the application"
     value       = var.app_name
   }
   
   output "endpoint" {
     value = format("http://%s:%s", alicloud_slb_load_balancer.slb.address, var.port)
   }

4. 執行以下命令，初始化配置。

   terraform init

5. 預期結果：

6. 依次執行以下命令，建立應用。

   1. 執行以下命令，部署應用。在執行過程中，根據提示輸入yes並按下Enter鍵，等待命令執行完成，若出現以下資訊，則表示授權完成。

      terraform apply

      預期結果：

   已成功建立綁定了SLB的應用app-slb，並輸出了SLB的IP地址和連接埠。

7. 驗證結果：

   執行terraform show命令

   您可以使用以下命令查詢Terraform已建立的資來源詳細資料：

   terraform show

   

   瀏覽器訪問截圖

   在瀏覽器中輸入SLB的IP地址和連接埠，例如http://121.43.XXX.XX:8000，斷行符號進入應用首頁。

解除綁定SLB並刪除應用

本樣本以在華南1（深圳）地區下的應用app-slb為例，介紹如何解除綁定SLB並刪除應用。

1. 在目標專案目錄內執行以下命令，回合組態檔案。

   terraform destroy

2. 預期結果：

   已成功解除綁定SLB並刪除應用app-slb。

相關文檔

• Terrafrom介紹，請參見Terraform產品介紹。