我正在尝试使用 python 获取 EC2 中的 EBS 卷列表。这是我的代码：import boto3import objectpathaws_account = 'company-lab'region = 'us-east-1'session = boto3.Session(profile_name=aws_account, region_name=region)ec2 = session.client("ec2")instance_list = ec2.describe_instances()for reservation in instance_list["Reservations"]: for instance in reservation.get("Instances", []): tree = objectpath.Tree(instance) block_devices = set(tree.execute('$..BlockDeviceMappings[\'Ebs\'][\'VolumeId\']')) block_devices = list(block_devices) for volume_id in block_devices: volume = ec2.Volume(volume_id)当我尝试这样做时，我收到以下错误：Traceback (most recent call last): File "<stdin>", line 7, in <module> File "C:\Users\tdun0002\AppData\Local\Programs\Python\Python38-32\lib\site-packages\botocore\client.py", line 573, in __getattr__ raise AttributeError(AttributeError: 'EC2' object has no attribute 'Volume'我正在尝试使用boto3 EC2 卷属性。我想获取任何给定 EC2 实例的 EBS 卷及其大小的列表。我怎样才能做到这一点？
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“我想获取任何给定 EC2 实例的 EBS 卷及其大小的列表。”
这是使用该resource方法的代码：
import boto3
ec2_resource = boto3.resource('ec2')
for instance in ec2_resource.instances.all():
for volume in instance.volumes.all():
print(instance.id, volume.id, volume.volume_type, volume.size)
并使用client方法：
import boto3
ec2_client = boto3.client('ec2')
response = ec2_client.describe_instances()
for reservation in response['Reservations']:
for instance in reservation['Instances']:
volumes = ec2_client.describe_volumes(
Filters=[{'Name':'attachment.instance-id','Values':[instance['InstanceId']]}]
)
for disk in volumes['Volumes']:
print(instance['InstanceId'], disk['VolumeId'], disk['VolumeType'], disk['Size'])
但是，这会导致多次 API 调用（每个实例DescribeInstances()一次调用）。DescribeVolumes()
此版本仅使用一次调用DescribeVolumes()并按 InstanceId 排序：
import boto3
ec2_resource = boto3.resource('ec2')
volumes = [(v.attachments[0]['InstanceId'], v.id, v.size)
for v in ec2_resource.volumes.filter(Filters=[{'Name':'attachment.status','Values':['attached']}])]
for volume in sorted(volumes):
print(volume[0], volume[1], volume[2])
下面是使用该方法的等效代码client：
import boto3
ec2_client = boto3.client('ec2')
response = ec2_client.describe_volumes(Filters=[{'Name':'attachment.status','Values':['attached']}])
volumes = [(v['Attachments'][0]['InstanceId'], v['VolumeId'], v['Size']) for v in response['Volumes']]
for volume in sorted(volumes):
print(volume[0], volume[1], volume[2])
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