使用Terraform创建ACK Edge集群

使用Terraform创建ACK Edge集群

1. 创建一个工作目录，并且在工作目录中创建以下名为main.tf的配置文件。

   main.tf文件描述了以下的Terraform配置：

   • 创建一个新的VPC，并创建一个该VPC下的vSwitch。

   • 创建一个ACK Edge集群。

   • 创建一个包含两个节点的节点池。

   provider "alicloud" {
   }
   
   variable "k8s_name_prefix" {
     description = "The name prefix used to create edge kubernetes cluster."
     default     = "edge-example"
   }
   
   resource "random_uuid" "this" {}
   # 默认资源名称。
   locals {
     k8s_name_edge = substr(join("-", [var.k8s_name_prefix,"edge"]), 0, 63)
     new_vpc_name  = "tf-vpc-172-16"
     new_vsw_name  = "tf-vswitch-172-16-0"
     nodepool_name = "edge-nodepool-1"
   }
   
   data "alicloud_zones" "default" {
       available_resource_creation = "VSwitch"
   }
   
   data "alicloud_instance_types" "default" {
       availability_zone    = data.alicloud_zones.default.zones.0.id
       cpu_core_count       = 4
       memory_size          = 8
       kubernetes_node_role = "Worker"
   }
   
   resource "alicloud_vpc" "vpc" {
     vpc_name   = local.new_vpc_name
     cidr_block = "172.16.0.0/12"
   }
   
   resource "alicloud_vswitch" "vsw" {
     vswitch_name      = local.new_vsw_name
       vpc_id          = alicloud_vpc.vpc.id
       cidr_block      = cidrsubnet(alicloud_vpc.vpc.cidr_block, 8, 8)
       zone_id         = data.alicloud_zones.default.zones.0.id
   }
   
   
   resource "alicloud_cs_edge_kubernetes" "edge" {
     name                  = local.k8s_name_edge
     version               = "1.20.11-aliyunedge.1"  #替换为您所需创建的集群版本。
     cluster_spec          = "ack.pro.small"
     worker_vswitch_ids    = split(",", join(",", alicloud_vswitch.vsw.*.id))
     worker_instance_types = [data.alicloud_instance_types.default.instance_types.0.id]
     new_nat_gateway       = true
     pod_cidr              = "10.10.0.0/16"
     service_cidr          = "10.12.0.0/16"
     load_balancer_spec    = "slb.s2.small"
     time_zone             = "Asia/Shanghai"
     worker_number         = 1
     node_cidr_mask        = 24
   
     # 运行时。
     runtime = {
       name    = "containerd"
       version = "1.5.13"     #替换为您所需创建的运行时版本。
     }
   
     # 节点池。
   resource "alicloud_cs_kubernetes_node_pool" "nodepool" {
     # Kubernetes集群名称。
     cluster_id            = alicloud_cs_edge_kubernetes.edge.id
     # 节点池名称。
     name                  = local.nodepool_name
     # 新的Kubernetes集群将位于的vSwitch。指定一个或多个vSwitch的ID。它必须在availability_zone指定的区域中。
     vswitch_ids           = split(",", join(",", alicloud_vswitch.vsw.*.id))
   
     # ECS实例类型和收费方式。
     instance_types        = [data.alicloud_instance_types.default.instance_types.0.id]
     instance_charge_type  = "PostPaid"
   
     # 可选，自定义实例名称。
     # node_name_mode      = "customized,edge-shenzhen,ip,default"
   
     #容器运行时。
     runtime_name          = "containerd"
     runtime_version       = "1.5.13"
   
     # Kubernetes集群的总工作节点数。默认值为3。最大限制为50。
     desired_size          = 2
     # SSH登录集群节点的密码。
     password              = "******"
   
     # 是否为Kubernetes的节点安装云监控。
     install_cloud_monitor = true
   
     # 节点的系统磁盘类别。其有效值为cloud_ssd和cloud_efficiency。默认为cloud_efficiency。
     system_disk_category  = "cloud_efficiency"
     system_disk_size      = 100
   
     # 操作系统类型。
     image_type            = "AliyunLinux"
   
     # 节点数据盘配置。
     data_disks {
       # 节点数据盘种类。
       category = "cloud_ssd"
       # 节点数据盘大小。
       size     = 120
     }
   }

2. 执行以下命令初始化Terraform运行环境。

   terraform init

   预期输出：

   Initializing the backend...
   
   Initializing provider plugins...
   - Checking for available provider plugins...
   - Downloading plugin for provider "alicloud" (hashicorp/alicloud) 1.184.0...
   ...
   
   You may now begin working with Terraform. Try running "terraform plan" to see
   any changes that are required for your infrastructure. All Terraform commands
   should now work.
   
   If you ever set or change modules or backend configuration for Terraform,
   rerun this command to reinitialize your working directory. If you forget, other
   commands will detect it and remind you to do so if necessary.

3. 执行以下命令生成资源规划。

   terraform plan

   预期输出：

   Refreshing Terraform state in-memory prior to plan...
   The refreshed state will be used to calculate this plan, but will not be
   persisted to local or remote state storage.
   ...
   Plan: 5 to add, 0 to change, 0 to destroy.
   ...

4. 执行以下命令创建集群。

   terraform apply

   预期输出：

   ...
   Do you want to perform these actions?
     Terraform will perform the actions described above.
     Only 'yes' will be accepted to approve.
   
     Enter a value: yes
   ...
   alicloud_cs_edge_kubernetes.edge: Creation complete after 8m26s [id=************]
   
   Apply complete! Resources: 5 added, 0 changed, 0 destroyed.

使用Terraform删除ACK Edge集群

您可以通过执行以下命令，删除通过Terraform创建的ACK Edge集群。

terraform destroy

预期输出：

...
Do you really want to destroy all resources?
  Terraform will destroy all your managed infrastructure, as shown above.
  There is no undo. Only 'yes' will be accepted to confirm.

  Enter a value: yes
...
Destroy complete! Resources: 5 destroyed.