A company runs an application using Amazon ECS.

Update the S3 role in AWS IAM to allow read/write access from Amazon ECS, and then relaunch the container.

Create an IAM role with S3 permissions, and then specify that role as the taskRoleAm in the task definition.

Create a security group that allows access from Amazon ECS to Amazon S3, and update the launch configuration used by the ECS cluster.

Create an IAM user with S3 permissions, and then relaunch the Amazon EC2 instances for the ECS cluster while logged in as this account.