问题描述
我有一堆在GCE中运行的实例.我想以编程方式获取它们的内部IP地址的列表，而无需登录到本地实例.
I have a bunch of instances running in GCE. I want to programmatically get a list of the internal IP addresses of them without logging into the instances (locally).
我知道我可以跑步:
gcloud compute instances list
但是我可以传递任何标志来获取我想要的信息吗?例如
But are there any flags I can pass to just get the information I want?e.g.
gcloud compute instances list --internal-ips
还是类似的?还是我必须清除sed/awk大脑的灰尘并解析输出?
or similar? Or am I going to have to dust off my sed/awk brain and parse the output?
我也知道我可以使用--format = json来获取JSON中的输出，但是我正尝试在bash脚本中进行此操作.
I also know that I can get the output in JSON using --format=json, but I'm trying to do this in a bash script.
推荐答案
以编程方式获取内部IP(或外部IP)列表且不依赖除gcloud以外的任何工具的最简单方法是:
The simplest way to programmatically get a list of internal IPs (or external IPs) without a dependency on any tools other than gcloud is:
$ gcloud --format="value(networkInterfaces[0].networkIP)" compute instances list
$ gcloud --format="value(networkInterfaces[0].accessConfigs[0].natIP)" compute instances list
这使用 --format=value ，它也需要投影，它是选择资源数据值的资源密钥.对于任何命令，您都可以使用--format=flattened来获取资源键/值对的列表:
This uses --format=value which also requires a projection which is a list of resource keys that select resource data values. For any command you can use --format=flattened to get the list of resource key/value pairs:
$ gcloud --format=flattened compute instances list
这篇关于如何获取GCE实例的内部IP地址列表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！