This pattern provides code samples and steps to create an Amazon Elastic Container Service (Amazon ECS) task definition that runs on Amazon Elastic Compute Cloud (Amazon EC2) instances in the Amazon Web Services (AWS) Cloud, while using Amazon Elastic File System (Amazon EFS) to mount a file system on those EC2 instances. Amazon ECS tasks that use Amazon EFS automatically mount the file systems that you specify in the task definition and make these file systems available to the task’s containers across all Availability Zones in an AWS Region.
To meet your persistent storage and shared storage requirements, you can use Amazon ECS and Amazon EFS together. For example, you can use Amazon EFS to store persistent user data and application data for your applications with active and standby ECS container pairs running in different Availability Zones for high availability. You can also use Amazon EFS to store shared data that can be accessed in parallel by ECS containers and distributed job workloads.
To use Amazon EFS with Amazon ECS, you can add one or more volume definitions to a task definition. A volume definition includes an Amazon EFS file system ID, access point ID, and a configuration for AWS Identity and Access Management (IAM) authorization or Transport Layer Security (TLS) encryption in transit. You can use container definitions within task definitions to specify the task definition volumes that get mounted when the container runs. When a task that uses an Amazon EFS file system runs, Amazon ECS ensures that the file system is mounted and available to the containers that need access to it.
