Following components can be seen on the graph “Horizon” Dashboard provides an end user and administrator interface to other services. It is the service I’m currently working ;) “Nova” Compute retrieves images and associated metadata, and transforms user requests on virtual machines. “Quantum” Network provides virtual networks as a service between devices managed by other OpenStack services, such as a virtual machine from Nova. Allows users to create their own networks and then link them to the devices of their choice. “Cinder” Block Storage provides persistent storage for VMs hosted on the cloud. “Glance” Image provides a catalog and a repository for images. “Swift” Object Store provides object storage. This is not a file system, is more like a container that can store files and retrieve them later. “Keystone” Identity provides authentication and authorization for all OpenStack services, and a catalog of these services of a particular cloud.
How OpenStack works?