使用AWS Java'；s SDK，如何终止当前实例的CloudFormation堆栈？

使用在线解除我提出了以下代码来终止当前EC2实例：

public class Ec2Utility {

    static private final String LOCAL_META_DATA_ENDPOINT = "http://169.254.169.254/latest/meta-data/";
    static private final String LOCAL_INSTANCE_ID_SERVICE = "instance-id";

    static public void terminateMe() throws Exception {
        TerminateInstancesRequest terminateRequest = new TerminateInstancesRequest().withInstanceIds(getInstanceId());
        AmazonEC2 ec2 = new AmazonEC2Client();
        ec2.terminateInstances(terminateRequest);
    }

    static public String getInstanceId() throws Exception {
        //SimpleRestClient, is an internal wrapper on http client.
        SimpleRestClient client = new SimpleRestClient(LOCAL_META_DATA_ENDPOINT);
        HttpResponse response = client.makeRequest(METHOD.GET, LOCAL_INSTANCE_ID_SERVICE);
        return IOUtils.toString(response.getEntity().getContent(), "UTF-8");
    }
}

我的问题是，我的EC2实例位于一个AutoScalingGroup之下，该组位于CloudFormationStack之下，这是因为我的组织部署标准，尽管这个EC2就是这个特性的全部

因此，我想从JavaSDK中终止整个CloudFormationStack，请记住，我事先没有CloudFormation堆栈名称，因为我没有EC2实例Id，所以我必须使用API调用从代码中获取它。

---

如果我能做到，我该怎么做？

您应该能够使用cloud formation sdk中的方法

DeleteStackRequest request = new DeleteStackRequest();
request.setStackName(<stack_name_to_be_deleted>);

AmazonCloudFormationClient client = new AmazonCloudFormationClient (<credentials>);
client.deleteStack(request);

DeleteStackRequest=new DeleteStackRequest（）；
request.setStackName（）；
AmazonCloudFormationClient=新的AmazonCloudFormationClient（）；
client.deleteStack（请求）；

如果没有堆栈名称，则应该能够从实例的标记中检索

DescribeInstancesRequest request =new DescribeInstancesRequest();   
request.setInstanceIds(instancesList);
DescribeInstancesResult disresult = ec2.describeInstances(request);
List <Reservation> list  = disresult.getReservations();

for (Reservation res:list){
    List <Instance> instancelist = res.getInstances();

    for (Instance instance:instancelist){

        List <Tag> tags = instance.getTags();
        for (Tag tag:tags){
            if (tag.getKey().equals("aws:cloudformation:stack-name")) {
                tag.getValue(); // name of the stack
            }
        }

DescribeInstancesRequest请求=新的DescribeInstancesRequest（）；
request.setInstanceId（InstanceList）；
descripbeinstancesresult disresult=ec2.descripbeinstances（请求）；
List=disresult.getReservations（）；
用于（预订资源：列表）{
List instancelist=res.getInstances（）；
例如（实例：instancelist）{
List tags=instance.getTags（）；
用于（标记：标记）{
if（tag.getKey（）.equals（“aws:cloudformation:stack name”））{
tag.getValue（）；//堆栈的名称
}
}

最后，我使用我编写的以下一组util函数实现了所需的行为：

/**
 * Delete the CloudFormationStack with the given name.
 * 
 * @param stackName
 * @throws Exception
 */
static public void deleteCloudFormationStack(String stackName) throws Exception {
    AmazonCloudFormationClient client = new AmazonCloudFormationClient();
    DeleteStackRequest deleteStackRequest = new DeleteStackRequest().withStackName("");
    client.deleteStack(deleteStackRequest);
}

static public String getCloudFormationStackName() throws Exception {
    AmazonEC2 ec2 = new AmazonEC2Client();
    String instanceId = getInstanceId();
    List<Tag> tags = getEc2Tags(ec2, instanceId);
    for (Tag t : tags) {
        if (t.getKey().equalsIgnoreCase(TAG_KEY_STACK_NAME)) {
            return t.getValue();
        }
    }
    throw new Exception("Couldn't find stack name for instanceId:" + instanceId);
}

static private List<Tag> getEc2Tags(AmazonEC2 ec2, String instanceId) throws Exception {
    DescribeInstancesRequest describeInstancesRequest = new DescribeInstancesRequest().withInstanceIds(instanceId);
    DescribeInstancesResult describeInstances = ec2.describeInstances(describeInstancesRequest);
    List<Reservation> reservations = describeInstances.getReservations();
    if (reservations.isEmpty()) {
        throw new Exception("DescribeInstances didn't returned reservation for instanceId:" + instanceId);
    }
    List<Instance> instances = reservations.get(0).getInstances();
    if (instances.isEmpty()) {
        throw new Exception("DescribeInstances didn't returned instance for instanceId:" + instanceId);
    }
    return instances.get(0).getTags();
}

// XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
// Example of usage from the code:
deleteCloudFormationStack(getCloudFormationStackName());
// XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

/**
*删除具有给定名称的CloudFormationStack。
* 
*@param stackName
*@抛出异常
*/
静态公共void deleteCloudFormationStack（字符串stackName）引发异常{
AmazonCloudFormationClient=新的AmazonCloudFormationClient（）；
DeleteStackRequest DeleteStackRequest=新的DeleteStackRequest（）。带StackName（“”）；
client.deleteStack（deleteStackRequest）；
}
静态公共字符串GetCloudFormationsStackName（）引发异常{
AmazonEC2 ec2=新的AmazonEC2Client（）；
字符串instanceId=getInstanceId（）；
列表标记=getEc2Tags（ec2，instanceId）；
用于（标记t:标记）{
if（t.getKey（）.equalsIgnoreCase（标记\键\堆栈\名称））{
返回t.getValue（）；
}
}
抛出新异常（“找不到instanceId的堆栈名称：“+instanceId”）；
}
静态私有列表getEc2Tags（amazonec2ec2，字符串instanceId）引发异常{
DescribeInstanceRequest DescribeInstancesRequest=新的DescribeInstancesRequest（），带有instanceId（instanceId）；
DescribeInstancesResult describeInstances=ec2.describeInstances（describeInstancesRequest）；
List reservations=descripbeinstances.getReservations（）；
if（reservations.isEmpty（））{
抛出新异常（“DescribeInstances未返回instanceId的保留：“+instanceId”）；
}
List instances=reservations.get（0.getInstances（）；
if（instances.isEmpty（））{
抛出新异常（“DescribeInstances没有返回instanceId的实例：“+instanceId”）；
}
返回instances.get（0.getTags（）；
}
//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
//代码中的用法示例：
deleteCloudFormationStack（getCloudFormationStackName（））；
//XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

我想我的问题不清楚（我会马上编辑）。我事先没有StackName。为了删除EC2，我可以从代码中获取实例id。是否有方法从代码中获取相关StackName？通常，如果在EC2实例上运行

describeInstances

，标记列表应该列出云形成堆栈的名称