Interesting to see how this evolves in comparison to Apache Mesos/YARN. There are definitely similarities with etcd<->zookeeper, fleet<->mesos, docker<->cgroups...
"User job requests kick off a bidding process by the machines in the cluster. Based on the received bids the engine assigns the job to a machine." yeah.. superficially that sounds very similar to mesos.
another system that can do cluster wide containerization and orchestration across clouds/baremetal is juju.
The end goal for all seems to be in utilization efficiency and ease of management at scale of a host of application topologies.
As part of this, a couple of new docker efforts were released today:
https://github.com/tarnfeld/mesos-docker-containerizer
https://github.com/mesosphere/medea
I'm pretty excited to see fleet. These types of distributed systems are a natural complement for containerized infrastructure.