通过Terraform管理负载均衡服务

操作步骤

1. 创建一个负载均衡实例。

   1. 创建terraform.tf文件，输入以下内容，并保存在当前的执行目录中。

      说明

      需要为每个Terraform项目创建一个独立的执行目录。在初始化配置之前至少需要有1个.tf文件。

      resource "alicloud_slb_load_balancer" "instance" {
        load_balancer_name   = "slb_worder"
        load_balancer_spec   = "slb.s3.small"
        internet_charge_type = "PayByTraffic"
        address_type         = "internet"
      }

   2. 运行terraform apply开始创建。出现类似下面的日志，说明创建成功。

      alicloud_slb_load_balancer.instance: Creating...
      alicloud_slb_load_balancer.instance: Still creating... [10s elapsed]
      alicloud_slb_load_balancer.instance: Creation complete after 14s [id=lb-gw89kh14ra0htarr1ub8n]
      ......
      Apply complete! Resources: 1 added, 0 changed, 0 destroyed.

   3. 运行terraform show查看已创建的负载均衡实例。

2. 添加监听。以下示例添加了TCP、UDP和HTTP三种协议的监听。

   1. 创建listener.tf文件，输入以下内容，并保存在当前的执行目录中。

      说明

      在该目录下所有*.tf 文件都会被terraform自动加载。因此，用户可以按照实际用途将配置信息写入不同的文件中。

      resource "alicloud_slb_listener" "tcp" {
        load_balancer_id          = alicloud_slb_load_balancer.instance.id
        backend_port              = "22"
        frontend_port             = "22"
        protocol                  = "tcp"
        bandwidth                 = "10"
        health_check_type         = "tcp"
        persistence_timeout       = 3600
        healthy_threshold         = 8
        unhealthy_threshold       = 8
        health_check_timeout      = 8
        health_check_interval     = 5
        health_check_http_code    = "http_2xx"
        health_check_connect_port = 20
        health_check_uri          = "/console"
        established_timeout       = 600
      }
      
      resource "alicloud_slb_listener" "udp" {
        load_balancer_id          = alicloud_slb_load_balancer.instance.id
        backend_port              = 2001
        frontend_port             = 2001
        protocol                  = "udp"
        bandwidth                 = 10
        persistence_timeout       = 3600
        healthy_threshold         = 8
        unhealthy_threshold       = 8
        health_check_timeout      = 8
        health_check_interval     = 4
        health_check_connect_port = 20
      }
      
      resource "alicloud_slb_listener" "http" {
        load_balancer_id          = alicloud_slb_load_balancer.instance.id
        backend_port              = 80
        frontend_port             = 80
        protocol                  = "http"
        sticky_session            = "on"
        sticky_session_type       = "insert"
        cookie                    = "testslblistenercookie"
        cookie_timeout            = 86400
        health_check              = "on"
        health_check_uri          = "/cons"
        health_check_connect_port = 20
        healthy_threshold         = 8
        unhealthy_threshold       = 8
        health_check_timeout      = 8
        health_check_interval     = 5
        health_check_http_code    = "http_2xx,http_3xx"
        bandwidth                 = 10
        request_timeout           = 80
        idle_timeout              = 30
      }

   2. 运行terraform apply开始创建资源。出现类似下面的日志，说明创建成功。

      alicloud_slb_listener.udp: Creating...
      alicloud_slb_listener.http: Creating...
      alicloud_slb_listener.tcp: Creating...
      alicloud_slb_listener.http: Creation complete after 5s [id=lb-gw89kh14ra0htarr1ub8n:http:80]
      ......
      Apply complete! Resources: 3 added, 0 changed, 0 destroyed.

   3. 运行terraform show查看已创建的监听。