我正在尝试向AWS lambda函数添加标记,该函数创建EC2实例的AMI。下面是我正在使用的lambda函数:
import boto3
import collections
import datetime
import sys
import pprint
ec = boto3.client('ec2')
retention_days = 7
def lambda_handler(event, context):
reservations = ec.describe_instances(
Filters=[
{'Name': 'tag-key', 'Values': ['backup', 'Backup', 'Client']},
]
).get(
'Reservations', []
)
print (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:
name_tag = [
str(t.get('Value')) for t in instance['Tags']
if t['Key'] == 'Name'][0]
print (name_tag)
print ("check_loop")
create_time = datetime.datetime.now()
create_fmt = create_time.strftime('%Y-%m-%d')
AMIid = ec.create_image(InstanceId=instance['InstanceId'], Name="Lambda12 - " + instance['InstanceId'] + " " + name_tag +" from " + create_fmt, Description="Lambda created AMI of instance " + instance['InstanceId'] + " " + name_tag + " from " + create_fmt, NoReboot=True, DryRun=False)
to_tag[retention_days].append(AMIid['ImageId'])
delete_date = datetime.date.today() + datetime.timedelta(days=retention_days)
delete_fmt = delete_date.strftime('%m-%d-%Y')
instancename = ''
for tags in instance["Tags"]:
if tags["Key"] == 'Client':
print ("This is instance inside if with key" + tags["Key"])
instancename = tags["Value"]
print ("This is instancename" + instancename )
ec.create_tags (
DryRun=False,
Resources=to_tag[retention_days],
Tags=[
{'Key': 'Client', 'Value': instancename},
]
)
print "This is last instancename" + instancename
ec.create_tags(
Resources=to_tag[retention_days],
Tags=[
{'Key': 'DeleteOn', 'Value': delete_fmt},
]
)
print ("Name tag " + name_tag)
print ("check_loopend")
现在,我在此代码中遇到的问题与此部分有关:
instancename = ''
for tags in instance["Tags"]:
if tags["Key"] == 'Client':
print ("This is instance inside if with key" + tags["Key"])
instancename = tags["Value"]
print ("This is instancename" + instancename )
ec.create_tags (
DryRun=False,
Resources=to_tag[retention_days],
Tags=[
{'Key': 'Client', 'Value': instancename},
]
)
print "This is last instancename" + instancename
当实例具有以下格式的标记时,我想向AMI添加标记:
{'Key': 'Client', 'Value': 'XYZ'}
XYZ是值。
但不知何故,当上面的循环结束时,我的所有实例都会被标记为循环最后一次迭代时的值。
实施例。
实例1 - {'Key': 'Client', 'Value': 'ABC'}
实例2 - 密钥不存在
实例3 - {'Key': 'Client', 'Value': 'XYZ'}
在这三个结束时,所有相应的AMI都被标记为:
{'Key': 'Client', 'Value': 'XYZ'}
我有什么遗失的吗?
任何帮助都将不胜感激。
P.S。 - 代码开头没有缩进问题。
答案 0 :(得分:0)
由于我使用了非常类似的备份脚本,我可以发表评论 -
您在设备循环中设置变量,然后通过具有相同保留期的实例组进行标记。因此,您获得了变量实例名的最后一次更新,并且正在更新所有实例(假设大多数共享保留计划)。