Question

在shell脚本或Python中，如何查看正在运行的EC2实例数以及每个AWS区域中的实例数？

Answer 1

aws ec2 describe-instances --query 'Reservations[*].Instances[*].[InstanceId]' --output text | wc -l

如果您希望为非默认区域执行此操作：

aws ec2 describe-instances --query 'Reservations[*].Instances[*].[InstanceId]' --region ap-southeast-2 --output text | wc -l

Answer 2

我建议您先安装AWS CLI。然后看看https://docs.aws.amazon.com/cli/latest/reference/ec2/describe-instances.html，它将向您展示如何获取正在运行的实例列表。您可以编写一个bash脚本来调用此describe-instances命令并使用可用的过滤器。

Answer 3

您也可以按如下方式使用配置服务：

% aws configservice get-discovered-resource-counts --region eu-west-1 --profile MyProfile
{
    "totalDiscoveredResources": 828,
    "resourceCounts": [
         ...ommitted for brevity's sake....
        {
            "resourceType": "AWS::EC2::SecurityGroup",
            "count": 94
        },
        {
            "resourceType": "AWS::EC2::NetworkInterface",
            "count": 60
        },
        {
            "resourceType": "AWS::IAM::Role",
            "count": 56
        },
        {
            "resourceType": "AWS::EC2::Volume",
            "count": 55
        },
        {
            "resourceType": "AWS::EC2::Instance",
            "count": 44
        },
        ...ommitted for brevity's sake....

https://awscli.amazonaws.com/v2/documentation/api/latest/reference/configservice/index.html

Answer 4

试试这个..

 aws ec2 list-instances

如何找到EC2实例的数量？

4 个答案: