I want to have a policy in my docker-compose which a docker container memory usage will be higher than the amount of a certain memory limitation it restarts.

This is what I have done so far:

version: '3'

services:
    modbus_collector:
        build: .
        image: modbus_collector:2.0.0
        container_name: modbus_collector
        restart: unless-stopped
        deploy:
          resources:
            limits:
              memory: 28M

I was expecting that to be restarted when the container memory usage exceeds 28M, but when I monitor docker containers by docker stats I see that this container memory usage grow up and not happens about restart!

I also tried by restart: always but the result was the same.

[UPDATE]:

With version 2 it works fine with mem_limit:. But it fails while using version 3, putting them under deploy section doesn't seem worthy unless I am using swarm mode.

Even on version 2.1, I have a problem in restarting the container: limitation applied correctly, but when the container memory usage grows up, this limitation prevents of that but I expected instead of decrease memory it will restart that container.

version: '2.1'

services:
    modbus_collector:
        build: .
        image: modbus_collector:2.0.0
        container_name: modbus_collector
        restart: unless-stopped
        mem_limit: 28m