从名称获取AWS EMR集群ID

本文介绍了从名称获取AWS EMR集群ID的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

AWS CLI命令 aws emr list-clusters 返回以下json.是否可以通过bash或groovy来使用Name来获取ID?我不能只使用Id，因为我要删除群集并仅使用相同的名称来重建它们.因此，我知道集群的名称是"my-cluster"，我想以某种方式使用它来获取集群的ID.最终的情况是我实际上想要群集的Master公共DNS.

AWS CLI command aws emr list-clusters returns the following json. Is there a way through bash or groovy that I can use the Name to get the Id? I can't just use the Id becauseI am deleting clusters and rebuilding them with only the same name. So I know the name of the cluster is "my-cluster" and I would like to use it somehow to get the Id of the cluster. End case is I actually want the Master public DNS of the cluster.

{ "Clusters": [ { "Status": { "Timeline": { "ReadyDateTime": 1433200405.353, "CreationDateTime": 1433199926.596 }, "State": "WAITING", "StateChangeReason": { "Message": "Waiting after step completed" } }, "NormalizedInstanceHours": 6, "Id": "j-3SD91U2E1L2QX", "Name": "my-cluster" }, { "Status": { "Timeline": { "ReadyDateTime": 1433200405.353, "CreationDateTime": 1433199926.596 }, "State": "WAITING", "StateChangeReason": { "Message": "Waiting after step completed" } }, "NormalizedInstanceHours": 6, "Id": "j-3S281UEK8L2LW", "Name": "my-cluster2" } ] }

推荐答案

您可以使用 query 参数来实现您要尝试的功能.该命令将如下所示:

You can use the query parameter to achieve what you are trying. The command will look like below:

aws emr list-clusters --query 'Clusters[?Name==`my-cluster`].Id' --output text

您可以找到 query 参数的完整文档此处.

You can find the complete documentation for the query parameter here.