ouspg
Implement better docker service support
After Docker upgrade, old docker swarm control scripts went obsolete, and were removed.
run-containers.sh creates N fuzzing containers as a service named "fuzz-service". Adding rest of the docker service commands would be useful.
Currently docker service supports functionality:
docker service rm SERVICE Can be used to remove the existing fuzz-service, before creating a new one. Useful, if user doesn't want to teardown and build a new cluster.
docker service scale SERVICE=REPLICAS Can be used to increase/decrease the amount of fuzzing instances running in the cluster. Useful, if user is running on own cloud/cluster and wants to decrease/increase HW usage temporarily.
docker service inspect SERVICE Can be used to get some information about the service. Current docker version doesn't support docker service logs, without experimental docker daemon.
