CDK部署失败报无资产桶错误：Failed to publish asset

问题背景 #

我正在学习AWS CDK，尝试创建一个新的S3桶，代码实现如下：

from aws_cdk import (
    Stack,
    aws_s3 as s3
)
from constructs import Construct
class MyCDKBucket(Stack):
    def __init__(self, scope: Construct, id: str, **kwargs) -> None:
        super().__init__(scope, id, **kwargs)
        # Create a simple S3 bucket
        bucket = s3.Bucket(self, 
            "MyFirstBucket",  # Unique identifier for the bucket
            versioned=True,   # Enable versioning (optional)
            bucket_name="cdk_bucket",
            removal_policy=core.RemovalPolicy.DESTROY  # Automatically delete the bucket on stack deletion
        )

执行步骤及输出 #

1. cdk bootstrap执行成功，输出：

Bootstrapping environment aws://ACCOUNT/us-east-1...
Trusted accounts for deployment: (none)
Trusted accounts for lookup: (none)
Using default execution policy of 'arn:aws:iam::aws:policy/AdministratorAccess'. Pass '--cloudformation-execution-policies' to customize.
Environment aws://ACCOUNT/us-east-1 bootstrapped(no changes).

2. cdk synth无报错，部分输出：

Parameters:
  BootstrapVersion:
    Type: AWS::SSM::Parameter::Value<String>
    Default: /cdk-bootstrap/hnb659fds/version
    Description: Version of the CDK Bootstrap resources in this environment, automatically retrieved from SSM Parameter Store. [cdk:skip]

3. cdk deploy失败，错误信息：

Synthesis time: 3.42s
CdkHelloStack: start: Building 12ccc934435a1d971aabaf873711add39a08ca1f0e872df373bcf5d43f5e1e45:current_account-current_region
CdkHelloStack: success: Built 12ccc934435a1d971aabaf873711add39a08ca1f0e872df373bcf5d43f5e1e45:current_account-current_region
CdkHelloStack: start: Publishing 12ccc934435a1d971aabaf873711add39a08ca1f0e872df373bcf5d43f5e1e45:current_account-current_region
CdkHelloStack: fail: No bucket named 'cdk-hnb659fds-assets-ACCOUNT-us-east-1'. Is account 448049821786 bootstrapped?
Failed to publish asset 12ccc934435a1d971aabaf873711add39a08ca1f0e872df373bcf5d43f5e1e45:current_account-current_region

疑问 #

我原本认为运行cdk deploy后会创建名为cdk_bucket的S3桶，请问我的理解有误吗？是否遗漏了步骤？

解决方案 #

1. 代码修复：缺失模块导入 #

代码中使用了core.RemovalPolicy.DESTROY但未导入core模块，需补充导入：

from aws_cdk import core

或者改用CDK v2标准写法，直接导入RemovalPolicy：

from aws_cdk import (
    Stack,
    aws_s3 as s3,
    RemovalPolicy
)
# 对应修改为：
removal_policy=RemovalPolicy.DESTROY

2. 修复Bootstrap环境不匹配问题 #

错误提示找不到资产桶，说明当前部署的账号/区域和Bootstrap环境不一致：

• 检查当前AWS CLI配置的账号是否为错误信息中的448049821786，若不是则切换账号后重新执行Bootstrap
• 若Bootstrap的区域和部署区域不一致，需在目标区域重新执行Bootstrap：

cdk bootstrap aws://448049821786/us-east-1

3. 关于cdk_bucket的创建逻辑 #

你的理解没错，代码正确的前提下，cdk deploy会创建名为cdk_bucket的S3桶，但需注意：S3桶名是全局唯一的，如果该名称已被其他用户占用，部署也会失败，需更换唯一桶名。

内容的提问来源于stack exchange，提问作者user1079065