Autoscale using Docker without Kubernetes?

Dear all =)

At https://docs.gitlab.com/runner/executors/kubernetes.html it is explained how to autoscale with Kubernetes, and this is exactly what I want, but I would like to do it with just Docker.

My project is only 6 containers and I manage it with Docker Compose, as it it intended to live on just one host.

It would be really nice if the CI could do the same, but just by using Docker.

Is that possible?

Hugs,
Sandra =)