That is false. Creation of threads/processes is still available within a container. Docker will run the entry point as PID 0 and that process can create as many

That is false. Creation of threads/processes is still available within a container. Docker will run the entry point as PID 0 and that process can create as many subprocesses as it wants. If you’re talking about cores, Docker utilizes Linux cgroups which permits usage of multiple cores. You can limit the CPU quota and assign the container to specific cores. See https://docs.docker.com/config/containers/resource_constraints/#cpu https://docs.docker.com/config/containers/resource_constrain...