這是我通過AWS Lambda創建快照的代碼。通過AWS創建包含描述的快照Lambda
import boto3
import collections
import datetime
ec = boto3.client('ec2')
def lambda_handler(event, context):
reservations = ec.describe_instances(
Filters=[
{'Name': 'tag-key', 'Values': ['Backup', 'backup']},
]
).get(
'Reservations', []
)
instances = sum(
[
[i for i in r['Instances']]
for r in reservations
], [])
print "Found %d instances that need backing up" % len(instances)
to_tag = collections.defaultdict(list)
for instance in instances:
try:
retention_days = [
int(t.get('Value')) for t in instance['Tags']
if t['Key'] == 'Retention'][0]
except IndexError:
retention_days = 14
for volume in ec.volumes.filter(Filters=[
{'Name': 'attachment.instance-id', 'Values': [instance.id]}
]):
description = 'scheduled-%s.%s-%s' % (instance_name, volume.volume_id, datetime.datetime.now().strftime("%Y%m%d-%H%M%S"))
print 'description: %s' % (description)
for dev in instance['BlockDeviceMappings']:
if dev.get('Ebs', None) is None:
continue
vol_id = dev['Ebs']['VolumeId']
print "Found EBS volume %s on instance %s" % (
vol_id, instance['InstanceId'])
snap = ec.create_snapshot(
VolumeId=vol_id,
)
to_tag[retention_days].append(snap['SnapshotId'])
print "Retaining snapshot %s of volume %s from instance %s for %d days" % (
snap['SnapshotId'],
vol_id,
instance['InstanceId'],
retention_days,
)
for retention_days in to_tag.keys():
delete_date = datetime.date.today() + datetime.timedelta(days=retention_days)
delete_fmt = delete_date.strftime('%Y-%m-%d')
print "Will delete %d snapshots on %s" % (len(to_tag[retention_days]), delete_fmt)
ec.create_tags(
Resources=to_tag[retention_days],
Tags=[
{'Key': 'DeleteOn', 'Value': delete_fmt},
]
)
我得到以下響應:
'EC2' object has no attribute 'volumes': AttributeError
Traceback (most recent call last):
File "/var/task/lambda_function.py", line 34, in lambda_handler
for volume in ec.volumes.filter(Filters=[
AttributeError: 'EC2' object has no attribute 'volumes'
Whgen我用EC = boto3.resource( 'EC2')代替EC = boto3.client( 'EC2' ),我得到的描述,但其他一些如describe_instances不起作用
那麼,請告訴我是什麼替代卷是boto3.client( 'EC2')
這滿足了我的要求。謝謝 – prudhvi