All 7 Amazon EFS (Elastic File System) questions
More in Amazon EFS (Elastic File System)
What are the different storage classes available in EFS? How do EFS mount targets work across multiple Availability Zones? How does EFS ensure data durability and availability? How can you control access permissions for files and directories stored in EFS? What performance modes and throughput modes are available in EFS, and how do you choose between them?
Advertisement
Back to results for “File System”
AWS › Amazon EFS (Elastic File System)

How does EFS integrate with AWS Lambda and containerized workloads like ECS?

Advanced

Answer

EFS can be mounted directly by Lambda functions and by ECS tasks, giving serverless and containerized workloads access to a persistent, shared file system that survives beyond the lifecycle of a single function invocation or container restart, which is especially useful for tasks like storing machine learning model files or shared configuration data that many function invocations need to access.
aws lambda update-function-configuration --function-name myFunction --file-system-configs Arn=arn:aws:elasticfilesystem:us-east-1:123456789012:access-point/fsap-12345678,LocalMountPath=/mnt/efs
Real-world example A machine learning inference service uses Lambda functions mounted to an EFS file system to access large pretrained model files that are too big to package directly with each function, avoiding repeated downloads on every invocation.

Common follow-ups: What are the performance considerations when Lambda functions access EFS?;How does mounting EFS affect Lambda cold start times?

Lambda & Serverless;Amazon ECS (Elastic Container Service)
All 7 Amazon EFS (Elastic File System) questions