如何在使用boto3的私有网络中找到最昂贵的X个EC2实例(包括EBS)？

import boto3

# 配置AWS凭证
session = boto3.Session(
    aws_access_key_id='YOUR_ACCESS_KEY',
    aws_secret_access_key='YOUR_SECRET_KEY',
    region_name='YOUR_REGION'
)

ec2_client = session.client('ec2')

response = ec2_client.describe_instances(
    Filters=[
        {
            'Name': 'vpc-id',
            'Values': ['YOUR_VPC_ID']
        }
    ]
)

instances = []
for reservation in response['Reservations']:
    for instance in reservation['Instances']:
        instances.append(instance)

costs = []
for instance in instances:
    instance_id = instance['InstanceId']
    ebs_cost = 0

    # 计算EBS成本
    for block_device in instance['BlockDeviceMappings']:
        volume_id = block_device['Ebs']['VolumeId']
        response = ec2_client.describe_volumes(
            VolumeIds=[volume_id]
        )
        ebs_cost += response['Volumes'][0]['Size'] * 0.1  # 假设每GB EBS成本为0.1美元

    # 计算EC2实例成本
    instance_type = instance['InstanceType']
    response = ec2_client.describe_instance_types(
        InstanceTypes=[instance_type]
    )
    instance_cost = response['InstanceTypes'][0]['InstanceTypeCosts'][0]['HourlyOnDemandRate']  # 假设每小时EC2实例成本为HourlyOnDemandRate

    total_cost = ebs_cost + instance_cost
    costs.append((instance_id, total_cost))

x = 5  # 假设要找到最昂贵的5个EC2实例
sorted_costs = sorted(costs, key=lambda x: x[1], reverse=True)
expensive_instances = sorted_costs[:x]

for instance_id, cost in expensive_instances:
    print(f"Instance ID: {instance_id}, Cost: {cost}")