文档 AWS SDK 示例 GitHub 存储库中还有更多 [S AWS DK 示例](https://github.com/awsdocs/aws-doc-sdk-examples)。
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# `DescribeClusters`与 AWS SDK 或 CLI 配合使用
以下代码示例演示如何使用 `DescribeClusters`。
------
#### [ CLI ]
**AWS CLI**
**示例 1：描述集群**
以下 `describe-clusters` 示例将检索指定集群的详细信息。
```
aws ecs describe-clusters \
--cluster default
```
输出：
```
{
"clusters": [
{
"status": "ACTIVE",
"clusterName": "default",
"registeredContainerInstancesCount": 0,
"pendingTasksCount": 0,
"runningTasksCount": 0,
"activeServicesCount": 1,
"clusterArn": "arn:aws:ecs:us-west-2:123456789012:cluster/default"
}
],
"failures": []
}
```
有关更多信息，请参阅《Amazon ECS 开发人员指南》**中的 [Amazon ECS 集群](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/ECS_clusters.html)。
**示例 2：描述带有附加选项的集群**
以下 `describe-clusters` 示例将指定 ATTACHMENTS 选项。它以附件的形式检索有关指定集群的详细信息以及附加到集群的资源列表。在集群中使用容量提供程序时，资源（无论是 AutoScaling 计划还是扩展策略）都将表示为 asp 或 as\$1policy 附件。
```
aws ecs describe-clusters \
--include ATTACHMENTS \
--clusters sampleCluster
```
输出：
```
{
"clusters": [
{
"clusterArn": "arn:aws:ecs:af-south-1:123456789222:cluster/sampleCluster",
"clusterName": "sampleCluster",
"status": "ACTIVE",
"registeredContainerInstancesCount": 0,
"runningTasksCount": 0,
"pendingTasksCount": 0,
"activeServicesCount": 0,
"statistics": [],
"tags": [],
"settings": [],
"capacityProviders": [
"sampleCapacityProvider"
],
"defaultCapacityProviderStrategy": [],
"attachments": [
{
"id": "a1b2c3d4-5678-901b-cdef-EXAMPLE22222",
"type": "as_policy",
"status": "CREATED",
"details": [
{
"name": "capacityProviderName",
"value": "sampleCapacityProvider"
},
{
"name": "scalingPolicyName",
"value": "ECSManagedAutoScalingPolicy-3048e262-fe39-4eaf-826d-6f975d303188"
}
]
}
],
"attachmentsStatus": "UPDATE_COMPLETE"
}
],
"failures": []
}
```
有关更多信息，请参阅《Amazon ECS 开发人员指南》**中的 [Amazon ECS 集群](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/ECS_clusters.html)。
+ 有关 API 的详细信息，请参阅*AWS CLI 命令参考[DescribeClusters](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/ecs/describe-clusters.html)*中的。
------
#### [ Java ]
**适用于 Java 的 SDK 2.x**
还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/ecs#code-examples)中查找完整示例，了解如何进行设置和运行。
```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.DescribeClustersRequest;
import software.amazon.awssdk.services.ecs.model.DescribeClustersResponse;
import software.amazon.awssdk.services.ecs.model.Cluster;
import software.amazon.awssdk.services.ecs.model.EcsException;
import java.util.List;
/**
* Before running this Java V2 code example, set up your development
* environment, including your credentials.
*
* For more information, see the following documentation topic:
*
* https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
*/
public class DescribeClusters {
public static void main(String[] args) {
final String usage = """
Usage:
\s
Where:
clusterArn - The ARN of the ECS cluster to describe.
""";
if (args.length != 1) {
System.out.println(usage);
System.exit(1);
}
String clusterArn = args[0];
Region region = Region.US_EAST_1;
EcsClient ecsClient = EcsClient.builder()
.region(region)
.build();
descCluster(ecsClient, clusterArn);
}
public static void descCluster(EcsClient ecsClient, String clusterArn) {
try {
DescribeClustersRequest clustersRequest = DescribeClustersRequest.builder()
.clusters(clusterArn)
.build();
DescribeClustersResponse response = ecsClient.describeClusters(clustersRequest);
List clusters = response.clusters();
for (Cluster cluster : clusters) {
System.out.println("The cluster name is " + cluster.clusterName());
}
} catch (EcsException e) {
System.err.println(e.awsErrorDetails().errorMessage());
System.exit(1);
}
}
}
```
+ 有关 API 的详细信息，请参阅 *AWS SDK for Java 2.x API 参考[DescribeClusters](https://docs.aws.amazon.com/goto/SdkForJavaV2/ecs-2014-11-13/DescribeClusters)*中的。
------
#### [ PowerShell ]
**适用于 PowerShell V4 的工具**
**示例 1：此 cmdlet 描述一个或多个 ECS 集群。**
```
Get-ECSClusterDetail -Cluster "LAB-ECS-CL" -Include SETTINGS | Select-Object *
```
**输出**：
```
LoggedAt : 12/27/2019 9:27:41 PM
Clusters : {LAB-ECS-CL}
Failures : {}
ResponseMetadata : Amazon.Runtime.ResponseMetadata
ContentLength : 396
HttpStatusCode : OK
```
+ 有关 API 的详细信息，请参阅 *AWS Tools for PowerShell Cmdlet 参考 (V* 4) [DescribeClusters](https://docs.aws.amazon.com/powershell/v4/reference)中的。
**适用于 PowerShell V5 的工具**
**示例 1：此 cmdlet 描述一个或多个 ECS 集群。**
```
Get-ECSClusterDetail -Cluster "LAB-ECS-CL" -Include SETTINGS | Select-Object *
```
**输出**：
```
LoggedAt : 12/27/2019 9:27:41 PM
Clusters : {LAB-ECS-CL}
Failures : {}
ResponseMetadata : Amazon.Runtime.ResponseMetadata
ContentLength : 396
HttpStatusCode : OK
```
+ 有关 API 的详细信息，请参阅 *AWS Tools for PowerShell Cmdlet 参考 (V* 5) [DescribeClusters](https://docs.aws.amazon.com/powershell/v5/reference)中的。
------
#### [ Rust ]
**适用于 Rust 的 SDK**
还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/ecs#code-examples)中查找完整示例，了解如何进行设置和运行。
```
async fn show_clusters(client: &aws_sdk_ecs::Client) -> Result<(), aws_sdk_ecs::Error> {
let resp = client.list_clusters().send().await?;
let cluster_arns = resp.cluster_arns();
println!("Found {} clusters:", cluster_arns.len());
let clusters = client
.describe_clusters()
.set_clusters(Some(cluster_arns.into()))
.send()
.await?;
for cluster in clusters.clusters() {
println!(" ARN: {}", cluster.cluster_arn().unwrap());
println!(" Name: {}", cluster.cluster_name().unwrap());
}
Ok(())
}
```
+ 有关 API 的详细信息，请参阅适用[DescribeClusters](https://docs.rs/aws-sdk-ecs/latest/aws_sdk_ecs/client/struct.Client.html#method.describe_clusters)于 *Rust 的AWS SDK API 参考*。
------