OpenStack and components

OpenStack is a cloud operating system that manages huge pools of computing, storage, and networking resources across a datacenter via a dashboard that offers administrators control while allowing users to provision resources via a web interface. Many cloud platform providers use OpenStack, which is an open-source platform.

OpenStack Components:

Compute (Nova):
Provides scalable on-demand access to computational resources such as virtual machines, bare metals, and containers.

Image Service (Glance):
Virtual machine images for use in the OpenStack cloud environment must be registered, discovered, and retrieved. It also offers backup services for virtual machines.

Object Storage (Swift):
Object storage that is extremely scalable and redundant. It can handle massive amounts of data in a cost-effective and efficient manner.

Dashboard (Horizon):
Administrators and users can browse the OpenStack cloud environment platform services and resources using a web-based interface.

Identity Service (Keystone):
In an OpenStack cloud environment, it provides services for authenticating and managing RBAC (Role Based User Accounts) user accounts and roles. This is accomplished by transmitting validated authorization tokens across all OpenStack cloud services. Compute and storage capabilities are included in the OpenStack cloud services. It supports the protocols LDAP, OpenID Connect, OAuth, SQL, and SAML.

Networking (Neutron):
Setting up and administering OpenStack environment cloud virtual network infrastructure and components is your responsibility. Networks, subnets, ports, switches, firewalls, load balancers, and routers are all abstracted by it.

Block Storage (Cinder):
Block level storage for virtual machines is the responsibility of this role.

Telemetry (Ceilometer):
Ceilometer provides a single point of contact for billing systems, allowing them to gather all of the measurements necessary to authorize client billing across all OpenStack core components. Developers can collect data by monitoring notifications from existing systems and configuring the type of data to match their operational needs.

Orchestration (Heat):
Heat is a service that uses the AWS CloudFormation template format to coordinate many composite cloud applications using the CloudFormation-compatible Query API and the OpenStack-native REST API.

Example: Huawei Fusion Sphere OpenStack.

Source : https://dzone.com/articles/openstack-core-components.