Explain The Architecture Of OpenStack System?

OpenStack is an open-source cloud computing platform that provides Infrastructure as a Service (IaaS) solutions. It enables users to deploy and manage their own cloud infrastructure. The architecture of OpenStack is divided into several components, which work together to provide a fully functional cloud platform.

The following is the high-level architecture of OpenStack:

  1. Compute (Nova): It is responsible for providing virtual machines and managing their lifecycle. Nova uses hypervisors to provide virtualization and supports a variety of hypervisors like KVM, VMware, Hyper-V, etc.

  2. Storage (Swift and Cinder): It provides scalable and reliable storage solutions for OpenStack. Swift is a distributed object storage system that can store large amounts of unstructured data, while Cinder provides block storage for virtual machines.

  3. Networking (Neutron): It provides network connectivity to virtual machines and other services running in OpenStack. Neutron supports software-defined networking (SDN) and enables users to create their own network topologies.

  4. Identity (Keystone): It is responsible for authentication and authorization in OpenStack. Keystone manages user accounts and credentials, and provides access control to other OpenStack services.

  5. Dashboard (Horizon): It is a web-based user interface that enables users to manage and monitor their OpenStack deployment. Horizon provides a graphical interface for performing various tasks such as creating and managing virtual machines, managing storage, and monitoring network activity.

  6. Orchestration (Heat): It is responsible for automating the deployment of infrastructure as a service (IaaS) resources. Heat enables users to define templates that can be used to automatically create and manage OpenStack resources.

  7. Telemetry (Ceilometer): It provides a central platform for collecting and storing performance data from various OpenStack services. Ceilometer enables users to monitor resource usage and track the performance of their OpenStack deployment.

  8. Database (Trove): It is a database as a service (DBaaS) solution that provides database management for OpenStack. Trove enables users to easily create and manage database instances, and supports a variety of database engines like MySQL, MongoDB, and Cassandra.

Overall, the architecture of OpenStack is designed to be modular and flexible, allowing users to deploy only the components they need and scale their infrastructure as needed.