[ECS EC2] [request] How to specify vCPU reservation with hard limit together?

[bushev]

I run about 30 tasks that host 1 container, I'm using EC2.

I need to limit resources for the containers.

For memory, I use taskDefinition.containerDefinitions[0].memory = 512 and taskDefinition.containerDefinitions[0].memoryReservation = 265 to make possible to run more containers but still limiting each individual container up to 512M, because the real consumption too often is low.

For CPU I have to use taskDefinition.cpu = '.5 vCPU' (task size) parameter to limit each individual container up to 50% of 1 vCPU. But like for the memory, I want to reserve less CPU capacity, because the actual usage is less than 10% very often.

How I can reserve less vCPU (for example 256 vCPU) but still limit the container to use up to 512 vCPU?

[fenxiong]

Hi, Unfortunately I don't think this use case is supported currently. i will forward it to container roadmap to track this as a feature request.