OpenNebula is an open-source cloud computing platform that allows the efficient management of data center resources such as networking, storage, and computing. It provides a centralized management interface for cloud computing environments that supports a wide range of virtualization technologies, including KVM, Xen, and VMware.
The architecture of OpenNebula comprises various components that work together to manage the entire cloud environment. These components include:
OpenNebula Core: It is the central component of the OpenNebula system that controls the life cycle of virtual machines and manages the virtual and physical resources of the cloud infrastructure.
OpenNebula Cloud Controller: It provides a web interface for cloud administrators to manage their virtual infrastructure and offers various functionalities such as VM management, resource allocation, and user management.
OpenNebula Virtual Machine Manager: It is responsible for managing virtual machines and their life cycle. It also interacts with the hypervisor to create, delete, and monitor virtual machines.
OpenNebula Information Manager: It collects and stores information about the physical and virtual resources in the cloud infrastructure. It provides a unified view of the entire infrastructure to other components of the OpenNebula system.
OpenNebula Authentication and Authorization Manager: It provides authentication and authorization services to OpenNebula's web interface and API. It also manages user accounts and permissions.
OpenNebula Network Manager: It manages network resources in the cloud infrastructure, including the creation and deletion of virtual networks, and configuration of IP addresses.
OpenNebula Storage Manager: It manages storage resources in the cloud infrastructure, including the creation and deletion of storage volumes and their assignment to virtual machines.
OpenNebula's architecture is modular and scalable, allowing users to add and remove components according to their requirements. It supports various cloud deployment models, including private, public, and hybrid clouds. With its robust and flexible architecture, OpenNebula provides a reliable and scalable cloud computing platform for enterprises and data centers.
