Question

我正在使用.net SDK for AWS编写代码以列出实例ID和实例类型。我知道我需要使用DescribeInstancesRequest类。我还认为我需要使用ArrayList来存储字符串输出，并使用foreach循环来获取所有实例。我只是把它放在一起很麻烦！像在控制台中列出实例ID这样简单的事情对我来说是一个很大的帮助。

有没有人做过类似的事情？

更新10/13/2012

我正迈出一小步才能到达我需要的地方。我是.net AWS SDK的新手，所以这是一个非常缓慢的过程。下面的代码计算我拥有的实例数并返回它。现在我只需要弄清楚如何列出实际的实例ID。

有什么想法吗？

AmazonEC2 ec2 = new AmazonEC2Client();

DescribeInstancesRequest request = new DescribeInstancesRequest();
DescribeInstancesResponse res = ec2.DescribeInstances(request);

Console.WriteLine(res.DescribeInstancesResult.Reservation.Count);
Console.Read();

Answer 1

不要打败死马，但对于我的任务，我必须在HTML表格中打印出实例ID和实例类型。如果您想在网站上托管它，这可能很有用。您需要做的就是更改StreamWriter的路径。这是我的草率但成品。

  AmazonEC2 ec2 = new AmazonEC2Client();
        DescribeInstancesRequest req = new DescribeInstancesRequest();
        List<Amazon.EC2.Model.Reservation> result = ec2.DescribeInstances(req).DescribeInstancesResult.Reservation;
        using (StreamWriter writer = new StreamWriter(@"C:\Users\Ethan\Desktop\InstanceOutput.html"))                  //change this output to a local address if testing the code
        {
            writer.Write("<table border=1><tbody><tr><th>Instance ID</th><th>Instance Type</th></tr>");
            foreach (Amazon.EC2.Model.Reservation reservation in result)
            {
                foreach (Amazon.EC2.Model.RunningInstance runningInstance in reservation.RunningInstance)
                {
                    writer.WriteLine("<tr><td>" + runningInstance.InstanceId + "</td><td>" + runningInstance.InstanceType + "</td></tr>");
                }
            }
            writer.Write("</tbody></table>");
        }

所以请记住，我对此不熟悉，有人可能会想出一个更清洁，更有效，更好的答案。这就是我在控制台中打印实例ID和实例类型的方法。

AmazonEC2 ec2 = new AmazonEC2Client();
DescribeInstancesRequest req = new DescribeInstancesRequest();
List<Amazon.EC2.Model.Reservation> result = ec2.DescribeInstances(req).DescribeInstancesResult.Reservation;

        foreach (Amazon.EC2.Model.Reservation reservation in result)
        {
            foreach (Amazon.EC2.Model.RunningInstance runningInstance in reservation.RunningInstance)
            {
                Console.WriteLine(runningInstance.InstanceId);
                Console.WriteLine(runningInstance.InstanceType);
            }
        }

Answer 2

某些东西已过时

List<Reservation> listReservations = ec2Client.DescribeInstances(requestInstances).Reservations;

foreach (Reservation reservation_item in listReservations)
{
    foreach (Instance instance_item in reservation_item.Instances)
    {
        WriteLine(instance_item.InstanceId);
        WriteLine(instance_item.InstanceType);
    }
}

在AWS .NET SDK中列出实例

更新10/13/2012

2 个答案: