S3 Bucket Policies - Restrict Access to S3 Bucket to a Specific VPC Endpoint

An S3 Bucket policy that denies all access to the bucket if the specified VPC endpoint is not being used to access the S3 bucket.

Policy|CloudFormation |AWS CLI

Missing Parameters

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Principal": "*",
            "Action": "s3:*",
            "Resource": [
                "arn:aws:s3:::/*",
                "arn:aws:s3:::"
            ],
            "Effect": "Deny",
            "Condition": {
                "StringNotEquals": {
                    "aws:sourceVpce": ""
                }
            }
        }
    ]
}

* Required field

Configuration Source: AWS Documentation: Example Bucket Policies for VPC Endpoints for Amazon S3

Additional Documentation:

AWS Documentation: Add/Edit S3 Bucket Policies (Manual Steps)
AWS Documentation: S3 Bucket Policy Language Overview
CloudFormation Reference Guide: S3 Bucket Policies
AWS CLI Command Reference Guide: S3 Bucket Policies

Configuration to create an S3 bucket with security configuration options including s3 block public access configuration, encryption, logging, and versioning

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