Amazon Elastic Container Service has now added support for tmpfs and shm-size parameters

Docker shm-size and tmpfs parameters can be utilized in the Amazon Elastic Container Service task definitions. The shm parameter enables the customers to specify the shared memory that container can utilize. It allows the memory intensive containers to operate faster by providing more access to the allocated memory. The tmpfs parameter enables you to mount the temporary volume in the memory. This will help you to eradicate the need to store data in the container instance and enables containers to run in a read-only mode which will enhance the security of the service.