Set up cross-account Amazon S3 access for Amazon SageMaker notebooks in VPC-only mode using Amazon S3 Access Points

This article explains how to set up cross-account access from an Amazon SageMaker notebook instance in one AWS account (Account A) to an Amazon S3 bucket in another AWS account (Account B), using Amazon S3 Access Points. It provides a secure and scalable way to manage access to shared datasets on S3.

Specifically, the article covers:

• Solution overview and architecture diagram
• Steps to configure Account A (VPC, subnet, security group, SageMaker notebook instance)
• Steps to configure Account B (S3 bucket, access point, bucket policy)
• Configuring IAM permissions and policies in Account A
• Testing the solution by accessing S3 objects through the access point
• Cleanup steps