boto3附加设备名称

Question

我正在尝试获取连接EBS卷的设备名称。我可以提取附加数据，但只想隔离设备名称。

import boto3
from botocore.client import ClientError

ec2 = boto3.resource('ec2')

filters = [{
      'Name': 'tag:app',
      'Values': [ 'splunklogidx' ],
      'Name': 'tag:splunksnap',
      'Values': [ 'yes' ]
      }]

#volumes = ec2.volumes.all()  # list all volumes
volumes = ec2.volumes.filter(Filters=filters)  # list all volumes

for v in volumes:
   print "v.id = %s" % v.id
   #print "v.tags = %s" % v.tags
   print "v.attachments = %s" % v.attachments

  #for atDev in v.attachments:
      #if atDev['Key'] == 'Device':
         #print "device = %s" % atDev['Value']

输出示例如下，我希望能够从中提取/dev/sda1。
谢谢你，K。

v.attachments = [
{u'AttachTime': datetime.datetime(2017, 8, 11, 10, 35, 8, tzinfo=tzutc()),
u'InstanceId': 'i-004821f294d20085d', 
u'VolumeId': 'vol-069d956bf5076c68d', 
u'State': 'attached', 
u'DeleteOnTermination': True, 
u'Device': '/dev/sda1'}
]