使用boto3从所有区域检索桶列表

Question

我试图使用boto3检索来自所有区域的桶列表，但是我无法列出来自正确区域的桶

到目前为止，我已经尝试了location['LocationConstraint']，它出现为None我也试过下面的方法，但是没有成功。

任何帮助都是感激的，谢谢你

if client.head_bucket(Bucket=bucket['Name'])['ResponseMetadata']['HTTPHeaders']['x-amz-bucket-region'] == 'us-east-1':
print ("bucketname %s " % s3_bucket.name)

import json
import boto3
bucketlist = []
def lambda_handler(event, context):
# Get list of regions
ec2 = boto3.client('ec2')
regions = ec2.describe_regions().get('Regions',[] )
# Iterate over regions
for region in regions:

print ("*************** Checking region  --   %s " % region['RegionName'])
reg=region['RegionName']

client = boto3.client('s3', region_name=reg)
response = client.list_buckets()
for bucket in response['Buckets']:
s3 = boto3.resource('s3', region_name=reg)
s3_bucket = s3.Bucket(bucket['Name'])
if client.head_bucket(Bucket=bucket['Name'])['ResponseMetadata']['HTTPHeaders']['x-amz-bucket-region'] == 'us-east-1':
print ("bucketname %s " % s3_bucket.name)
bucketlist.append(s3_bucket)
return {
"statusCode": 200
}

输出:testbucket1和testbucket2桶仅在us-east-1区域可用

START RequestId: e22f6ac0-7bb9-4e2b-84d7-5512ce97acfa Version: $LATEST
*************** Checking region  --   eu-north-1 
bucketname testbucket1 
bucketname testbucket2 
*************** Checking region  --   ap-south-1 
bucketname testbucket1 
bucketname testbucket2 
[...]
*************** Checking region  --   us-east-1 
bucketname testbucket1
bucketname testbucket2

预期输出:

START RequestId: e22f6ac0-7bb9-4e2b-84d7-5512ce97acfa Version: $LATEST
*************** Checking region  --   eu-north-1 
*************** Checking region  --   ap-south-1 
*************** Checking region  --   eu-west-3 
*************** Checking region  --   eu-west-2 
*************** Checking region  --   eu-west-1 
*************** Checking region  --   ap-northeast-3 
*************** Checking region  --   ap-northeast-2 
*************** Checking region  --   ap-northeast-1 
*************** Checking region  --   sa-east-1 
*************** Checking region  --   ca-central-1 
*************** Checking region  --   ap-southeast-1 
*************** Checking region  --   ap-southeast-2 
*************** Checking region  --   eu-central-1 
*************** Checking region  --   us-east-1 
bucketname testbucket1 
bucketname testbucket2 
*************** Checking region  --   us-east-2 
*************** Checking region  --   us-west-1 
*************** Checking region  --   us-west-2 

Answer 1

您不必为客户端更改区域。list_buckets返回所有bucket 在账户里，不管他们在哪里。这就是为什么您在代码中为每个区域获得相同的桶。

您必须迭代list_buckets结果，并使用get_bucket_location来获取桶的实际位置。例如:

all_buckets = client.list_buckets()
for bucket in all_buckets['Buckets']:
bucket_bame = bucket["Name"]
region = client.get_bucket_location(Bucket=bucket_bame)["LocationConstraint"]
print(bucket_bame, region)