This pattern deploys a Lambda function with an Amazon S3 Files file system mounted at /mnt/s3data. The function performs standard file operations (read, write, list) on S3 data using the local filesystem — no S3 API calls needed.

S3 Files provides NFS access to S3 buckets with sub-millisecond latency on small files and full POSIX semantics. The pattern creates a VPC with isolated subnets (no NAT gateway), an S3 gateway VPC endpoint, S3 Files file system, mount targets, access point, and a Lambda function wired together.

Multiple Lambda functions can connect to the same S3 Files file system simultaneously, sharing data through a common workspace without custom synchronization logic.