# AWS::S3Outposts::BucketPolicy Resource Type Definition for AWS::S3Outposts::BucketPolicy ## Syntax To declare this entity in your AWS CloudFormation template, use the following syntax: ### JSON
{ "Type" : "AWS::S3Outposts::BucketPolicy", "Properties" : { "Bucket" : String, "PolicyDocument" : Map } }### YAML
Type: AWS::S3Outposts::BucketPolicy Properties: Bucket: String PolicyDocument: Map## Properties #### Bucket The Amazon Resource Name (ARN) of the specified bucket. _Required_: Yes _Type_: String _Minimum_:
20
_Maximum_: 2048
_Pattern_: ^arn:[^:]+:s3-outposts:[a-zA-Z0-9\-]+:\d{12}:outpost\/[^:]+\/bucket\/[^:]+$
_Update requires_: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)
#### PolicyDocument
A policy document containing permissions to add to the specified bucket.
_Required_: Yes
_Type_: Map
_Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)
## Return Values
### Ref
When you pass the logical ID of this resource to the intrinsic `Ref` function, Ref returns the Bucket.