201-use-case-use-alb-instance-to-provide-ipv4-services

Author: lsy1968

quickstarts/Application_Load_Balancer(ALB)/201-use-case-use-alb-instance-to-provide-ipv4-services/README.md

@@ -43,14 +43,16 @@ No modules.
 | [alicloud_vswitch.backup_vswitch](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/vswitch) | resource |
 | [alicloud_vswitch.master_vswitch](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/vswitch) | resource |
 | [random_integer.example](https://registry.terraform.io/providers/hashicorp/random/latest/docs/resources/integer) | resource |
+| [alicloud_alb_zones.example](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/data-sources/alb_zones) | data source |
 | [alicloud_zones.example](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/data-sources/zones) | data source |
 
 ## Inputs
 
 | Name | Description | Type | Default | Required |
 |------|-------------|------|---------|:--------:|
+| <a name="input_ecs_password"></a> [ecs\_password](#input\_ecs\_password) | ECS登录密码 | `string` | `"Terraform@Example"` | no |
 | <a name="input_host_name"></a> [host\_name](#input\_host\_name) | your domain name | `string` | `"tf-example.com"` | no |
-| <a name="input_password"></a> [password](#input\_password) | ECS登录密码 | `string` | `"Terraform@Example"` | no |
+| <a name="input_host_record"></a> [host\_record](#input\_host\_record) | Host Record,like image | `string` | `"image"` | no |
 | <a name="input_region"></a> [region](#input\_region) | n/a | `string` | `"cn-beijing"` | no |
 <!-- END_TF_DOCS -->
 

quickstarts/Application_Load_Balancer(ALB)/201-use-case-use-alb-instance-to-provide-ipv4-services/main.tf

@@ -2,20 +2,8 @@ variable "region" {
   default = "cn-beijing"
 }
 
-provider "alicloud" {
-  region = var.region
-}
-
-# 可用区
-data "alicloud_zones" "example" {
-  available_resource_creation      = "VSwitch"
-  available_disk_category          = local.available_disk_category
-  available_slb_address_ip_version = "ipv4"
-  available_slb_address_type       = "classic_internet"
-}
-
 # ECS登录密码
-variable "password" {
+variable "ecs_password" {
   type    = string
   default = "Terraform@Example"
 }
@@ -27,14 +15,35 @@ variable "host_name" {
   description = "your domain name"
 }
 
-locals {
-  vpc_cidr_block          = "172.16.0.0/16"
-  available_disk_category = "cloud_essd"
-  image_id                = "aliyun_2_1903_x64_20G_alibase_20240628.vhd"
-  instance_type           = "ecs.e-c1m1.large"
-  master_vsw_cidr_block   = "172.16.0.0/24"
-  backup_vsw_cidr_block   = "172.16.2.0/24"
+# 主机记录
+variable "host_record" {
+  type        = string
+  default     = "image"
+  description = "Host Record,like image"
+}
 
+provider "alicloud" {
+  region = var.region
+}
+
+# 查询支持ALB的可用区
+data "alicloud_alb_zones" "example" {}
+
+# 查询支持ECS云盘类型的可用区
+data "alicloud_zones" "example" {
+  available_resource_creation = "VSwitch"                     // 交换机类型
+  available_disk_category     = local.available_disk_category // 云盘类型
+}
+
+locals {
+  vpc_cidr_block          = "172.16.0.0/16"                              # 专有网络VPC的CIDR
+  available_disk_category = "cloud_essd"                                 # 云盘类型
+  image_id                = "aliyun_2_1903_x64_20G_alibase_20240628.vhd" # 镜像ID
+  ecs_instance_type       = "ecs.e-c1m1.large"                           # ECS实例规格
+  master_vsw_cidr_block   = "172.16.0.0/24"                              # master交换机的CIDR
+  backup_vsw_cidr_block   = "172.16.2.0/24"                              # backup交换机的CIDR
+  # 提取地区交集
+  intersection_zones = tolist(setintersection(data.alicloud_alb_zones.example.ids, data.alicloud_zones.example.ids))
   # ECS中部署服务脚本
   master_ecs_command = <<EOS
     yum install -y nginx
@@ -66,15 +75,15 @@ resource "alicloud_vpc" "example" {
 resource "alicloud_vswitch" "master_vswitch" {
   vpc_id       = alicloud_vpc.example.id
   cidr_block   = local.master_vsw_cidr_block
-  zone_id      = data.alicloud_zones.example.zones[0].id
+  zone_id      = local.intersection_zones[0]
   vswitch_name = "master_vswitch_test_${random_integer.example.result}"
 }
 
 # backup交换机
 resource "alicloud_vswitch" "backup_vswitch" {
   vpc_id       = alicloud_vpc.example.id
   cidr_block   = local.backup_vsw_cidr_block
-  zone_id      = data.alicloud_zones.example.zones[1].id
+  zone_id      = local.intersection_zones[1]
   vswitch_name = "backup_vswitch_test_${random_integer.example.result}"
 }
 
@@ -110,32 +119,32 @@ resource "alicloud_security_group_rule" "egress" {
 
 # mster ECS实例
 resource "alicloud_instance" "master_example" {
-  availability_zone          = data.alicloud_zones.example.zones[0].id
+  availability_zone          = local.intersection_zones[0]
   security_groups            = alicloud_security_group.example.*.id
-  instance_type              = local.instance_type
+  instance_type              = local.ecs_instance_type
   system_disk_category       = local.available_disk_category
   system_disk_name           = "master_system_disk_name_${random_integer.example.result}"
   system_disk_description    = "master_system_disk_description_${random_integer.example.result}"
   image_id                   = local.image_id
   instance_name              = "master_instance_name_${random_integer.example.result}"
   vswitch_id                 = alicloud_vswitch.master_vswitch.id
   internet_max_bandwidth_out = 10
-  password                   = var.password
+  password                   = var.ecs_password
 }
 
 # backup ECS实例
 resource "alicloud_instance" "backup_example" {
-  availability_zone          = data.alicloud_zones.example.zones[1].id
+  availability_zone          = local.intersection_zones[1]
   security_groups            = alicloud_security_group.example.*.id
-  instance_type              = local.instance_type
+  instance_type              = local.ecs_instance_type
   system_disk_category       = local.available_disk_category
   system_disk_name           = "backup_system_disk_name_${random_integer.example.result}"
   system_disk_description    = "backup_system_disk_description_${random_integer.example.result}"
   image_id                   = local.image_id
   instance_name              = "backup_instance_name_${random_integer.example.result}"
   vswitch_id                 = alicloud_vswitch.backup_vswitch.id
   internet_max_bandwidth_out = 10
-  password                   = var.password
+  password                   = var.ecs_password
 }
 
 # master ECS命令
@@ -147,6 +156,9 @@ resource "alicloud_ecs_command" "master_ecs_command" {
   command_content  = base64encode(local.master_ecs_command)
   timeout          = 3600
   working_dir      = "/root"
+  lifecycle {
+    ignore_changes = [command_content]
+  }
 }
 
 # 在master ECS中执行命令
@@ -167,6 +179,9 @@ resource "alicloud_ecs_command" "backup_ecs_command" {
   command_content  = base64encode(local.backup_ecs_command)
   timeout          = 3600
   working_dir      = "/root"
+  lifecycle {
+    ignore_changes = [command_content]
+  }
 }
 
 # 在backup ECS中执行命令
@@ -260,7 +275,7 @@ resource "alicloud_alb_listener" "example" {
 resource "alicloud_dns_record" "example" {
   name        = var.host_name
   type        = "CNAME"
-  host_record = "@"
+  host_record = var.host_record
   value       = alicloud_alb_load_balancer.example.dns_name
   ttl         = 600
 }