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Lambda_Function.py
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Lambda_Function.py
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# *******************************************************************************
# Name: index.py
# Description: A python script to automatically tag AWS resources.
#
# Oct. 28 2019, JingKun Technology Co. Ltd
# *******************************************************************************
from __future__ import print_function
import logging
import boto3
logger = logging.getLogger()
logger.setLevel(logging.INFO)
businessUnit = ''
def lambda_handler(event, context):
detail = event['detail']
eventname = detail['eventName']
region = str(event['region'])
detail = event['detail']
userType = detail['userIdentity']['type']
iam = boto3.resource('iam')
global businessUnit
# 判断事件是来自 User 实体还是来自 Role
if userType == 'IAMUser':
user = detail['userIdentity']['userName']
else:
# 若非实体用户则从 principal 中截取 Role 的信息
principal = detail['userIdentity']['principalId']
user = principal.split(':')[1]
if iam.User(user).tags:
for item in iam.User(user).tags:
if item['Key'] == 'BusinessUnit':
businessUnit = item['Value']
if not businessUnit:
businessUnit = 'undefined'
# logger.info('principalId: ' + str(principal))
logger.info('eventName: ' + str(eventname))
logger.info('event: ' + str(event))
logger.setLevel(logging.INFO)
if eventname == 'RunInstances':
# 启动EC2实例
ids = []
ec2 = boto3.resource('ec2')
items = detail['responseElements']['instancesSet']['items']
for item in items:
ids.append(item['instanceId'])
logger.info(ids)
logger.info('number of instances: ' + str(len(ids)))
base = ec2.instances.filter(InstanceIds=ids)
# 遍历实例寻找附加的卷和网络接口
for instance in base:
for vol in instance.volumes.all():
ids.append(vol.id)
for eni in instance.network_interfaces:
ids.append(eni.id)
if ids:
for resourceId in ids:
print('Tagging resource ' + resourceId)
ec2.create_tags(Resources=ids,
Tags=[{'Key': 'CreateBy', 'Value': user},
{'Key': 'BusinessUnit', 'Value': businessUnit}])
print('Auto Tagging completed with "CreateBy:' + user +
'" and "BusinessUnit:' + businessUnit + '"')
elif eventname in ('CreateVolume', 'RegisterImage', 'CreateSnapshot', 'CreateVpc', 'AllocateAddress'):
# 创建EC2卷、镜像、快照、VPC或弹性IP
id = []
ec2 = boto3.resource('ec2')
if eventname == 'CreateVolume':
id.append(detail['responseElements']['volumeId'])
elif eventname == 'RegisterImage':
id.append(detail['responseElements']['imageId'])
elif eventname == 'CreateSnapshot':
id.append(detail['responseElements']['snapshotId'])
elif eventname == 'CreateVpc':
id.append(detail['responseElements']['vpc']['vpcId'])
elif eventname == 'AllocateAddress':
id.append(detail['responseElements']['allocationId'])
if id:
print('Tagging resource ' + str(id))
ec2.create_tags(Resources=id,Tags=[{'Key': 'CreateBy', 'Value': user},
{'Key': 'BusinessUnit', 'Value': businessUnit}])
print('Auto Tagging completed with "CreateBy:' + user +
'" and "BusinessUnit:' + businessUnit + '"')
elif eventname == 'CreateLoadBalancer':
#创建负载均衡器
lb_name=[]
lb_name.append(detail['requestParameters']['loadBalancerName'])
client = boto3.client('elb')
print('Tagging resource ' + str(lb_name))
tags = [{'Key': 'CreateBy', 'Value': user},
{'Key': 'BusinessUnit', 'Value': businessUnit}]
client.add_tags(LoadBalancerNames = lb_name, Tags = tags)
print('Auto Tagging completed with "CreateBy:' + user +
'" and "BusinessUnit:' + businessUnit + '"')
elif eventname == 'CreateTable':
# 创建Dynamodb表
client = boto3.client('dynamodb')
resource_arn = detail['responseElements']['tableDescription']['tableArn']
table_name = detail['responseElements']['tableDescription']['tableName']
print('Tagging resource ' + table_name)
tags = [{'Key': 'CreateBy', 'Value': user},
{'Key': 'BusinessUnit', 'Value': businessUnit}]
client.tag_resource(ResourceArn = resource_arn, Tags = tags)
print('Auto Tagging completed with "CreateBy:' + user +
'" and "BusinessUnit:' + businessUnit + '"')
elif eventname == 'CreateFunction20150331':
# 创建Lambda功能
# Lambda 的实际 API 与文档中并不一致, 其组成为 Api 名字+版本
client = boto3.client('lambda')
function_name = detail['requestParameters']['functionName']
# Lambda 函数的 arn
function_arn = detail['responseElements']['functionArn']
print('Tagging resource ' + function_name)
tags = {'CreateBy': user, 'BusinessUnit': businessUnit}
client.tag_resource(Resource=function_arn, Tags=tags)
print('Auto Tagging completed with "CreateBy:' + user +
'" and "BusinessUnit:' + businessUnit + '"')
elif eventname == 'CreateDBInstance':
# 创建RDS实例
client = boto3.client('rds')
resource_arn = detail['responseElements']['dBInstanceArn']
db_name = detail['responseElements']['dBName']
print('Tagging resource ' + db_name)
tags = [{'Key': 'CreateBy', 'Value': user},
{'Key': 'BusinessUnit', 'Value': businessUnit}]
client.add_tags_to_resource(ResourceName=resource_arn, Tags=tags)
print('Auto Tagging completed with "CreateBy:' + user +
'" and "BusinessUnit:' + businessUnit + '"')
elif eventname == 'CreateCluster':
# 创建RedShift集群
client = boto3.client('redshift')
cluster_name = detail['requestParameters']['clusterIdentifier']
account_id = event['account']
# 在 API 中并没有提供获取 RedShift ARN 的方法，需要自己手动拼接，中国区的 ARN 形如：
# arn:aws-cn:redshift:region:account-id:cluster:cluster-name
# 拼接 arn
resource_arn = "arn:aws-cn:redshift:" + str(region) + ":" + str(account_id) + ":cluster:" + cluster_name
print('Tagging resource ' + cluster_name)
tags = [{'Key': 'CreateBy', 'Value': user},
{'Key': 'BusinessUnit', 'Value': businessUnit}]
client.create_tags(ResourceName=resource_arn, Tags=tags)
print('Auto Tagging completed with "CreateBy:' + user +
'" and "BusinessUnit:' + businessUnit + '"')
elif eventname == 'CreateBucket':
# 创建S3桶
s3 = boto3.client("s3")
bucket_name = detail['requestParameters']['bucketName']
print('Tagging resource ' + bucket_name)
tags = [{'Key': 'CreateBy', 'Value': user},
{'Key': 'BusinessUnit', 'Value': businessUnit}]
s3.put_bucket_tagging(Bucket=bucket_name, Tagging={'TagSet': tags})
print('Auto Tagging completed with "CreateBy:' + user +
'" and "BusinessUnit:' + businessUnit + '"')
elif eventname == 'PutObject':
# 向S3上传文件
s3 = boto3.client("s3")
bucket_name = detail['requestParameters']['bucketName']
object_name = detail['requestParameters']['key']
print('Tagging object ' + bucket_name + '/' + object_name)
tags = [{'Key': 'CreateBy', 'Value': user},
{'Key': 'BusinessUnit', 'Value': businessUnit}]
s3.put_object_tagging(Bucket=bucket_name, Key=object_name, Tagging={'TagSet': tags})
print('Auto Tagging completed with "CreateBy:' + user +
'" and "BusinessUnit:' + businessUnit + '"')
elif eventname == 'CreateQueue':
# 创建SQS队列
client = boto3.client('sqs')
queue_url = detail['responseElements']['queueUrl']
queue_name = detail['requestParameters']['queueName']
print('Tagging resource ' + queue_name)
tags = {'CreateBy': user, 'BusinessUnit': businessUnit}
client.tag_queue(QueueUrl=queue_url, Tags=tags)
print('Auto Tagging completed with "CreateBy:' + user +
'" and "BusinessUnit:' + businessUnit + '"')
# elif eventname == 'CreateVpc':
# # 创建VPC
# vpc_id = detail['responseElements']['vpc']['vpcId']
# ec2 = boto3.resource('ec2')
# vpc = ec2.Vpc(vpc_id)
# print('Tagging resource ' + vpc_id)
# tags = [{'Key': 'CreateBy', 'Value': user},
# {'Key': 'BusinessUnit', 'Value': businessUnit}]
# vpc.create_tags(DryRun=False, Tags=tags)
# print('Auto Tagging completed with "CreateBy:' + user +
# '" and "BusinessUnit:' + businessUnit + '"')
else:
logger.warning('Not supported action')
return False
logger.info("Success!")
return True