Magnum is an OpenStack project which offers container orchestration engines for deploying and managing containers as first class resources in OpenStack.
There are several different types of objects in the magnum system:
Two binaries work together to compose the magnum system. The first binary (accessed by the python-magnumclient code) is the magnum-api REST server. The REST server may run as one process or multiple processes. When a REST request is sent to the client API, the request is sent via AMQP to the magnum-conductor process. The REST server is horizontally scalable. At this time, the conductor is limited to one process, but we intend to add horizontal scalability to the conductor as well.
The magnum-conductor process runs on a controller machine and connects to a Kubernetes or Docker REST API endpoint. The Kubernetes and Docker REST API endpoints are managed by the cluster object.
When service or pod objects are created, Kubernetes may be directly contacted via the Kubernetes REST API. When container objects are acted upon, the Docker REST API may be directly contacted.