终止 Amazon EC2 实例

如果您不再需要一个或多个 Amazon EC2 实例，则可终止这些实例。

此示例说明如何使用适用于 .NET 的 Amazon SDK终止 EC2 实例。它以实例 ID 作为输入。

using System;
using System.Threading.Tasks;
using System.Collections.Generic;
using Amazon.EC2;
using Amazon.EC2.Model;

namespace EC2TerminateInstance
{
  class Program
  {
    static async Task Main(string[] args)
    {
      if((args.Length == 1) && (args[0].StartsWith("i-")))
      {
        // Terminate the instance
        var ec2Client = new AmazonEC2Client();
        await TerminateInstance(ec2Client, args[0]);
      }
      else
      {
        Console.WriteLine("\nCommand-line argument missing or incorrect.");
        Console.WriteLine("\nUsage: EC2TerminateInstance instance-ID");
        Console.WriteLine("  instance-ID - The EC2 instance you want to terminate.");
        return;
      }
    }

    //
    // Method to terminate an EC2 instance
    private static async Task TerminateInstance(IAmazonEC2 ec2Client, string instanceID)
    {
      var request = new TerminateInstancesRequest{
        InstanceIds = new List<string>() { instanceID }};
      TerminateInstancesResponse response =
        await ec2Client.TerminateInstancesAsync(new TerminateInstancesRequest{
          InstanceIds = new List<string>() { instanceID }
        });
      foreach (InstanceStateChange item in response.TerminatingInstances)
      {
        Console.WriteLine("Terminated instance: " + item.InstanceId);
        Console.WriteLine("Instance state: " + item.CurrentState.Name);
      }
    }
  }
}

运行该示例后，最好登录 Amazon EC2 控制台来验证 EC2 实例是否已终止。