OPenstack

OPenstack:
Openstack is software for building  and managing  cloud computing platforms for private and public Cloud. It is Considered as  IaaS.
OPenstack has big community and it is managed by Openstack Foundation.
It is a OPen source  platform.
There  are many ways to install  and deploy openstack  through different distributions like ubuntu,redhat,suse linux

Openstack Version:

OpenStack is developed and released around 6-month cycles.After the initial release, additional stable point releases will be released in each release series
Present release  Series is "Train" ,15 version.
Under Development  "Ussuri" Series

OPenstack Components:

Openstack platform is managed by a web UI dashboard. It comprises of nine Core key components

• Nova is a computing engine. It is used for deploying and managing large numbers of virtual machines.
• Neutron provides the networking capability.
• Horizon is the dashboard of Openstack. It is the only graphical interface (WEB UI).
• Keystone provides identity services. It is essentially a central list of all the users.
• Glance provides image services to OpenStack. In this case, "images" refers to images (or virtual copies) of hard disks.
• Heat allows developers to store the requirements of a cloud application in a file that defines what resources are necessary for that application.
• Swift is a storage system for objects and files.
• Cinder is a block storage component. It accesses specific locations on a disk drive.
• Ceilometer provides telemetry services, which allow the cloud to provide billing services to individual users of the cloud.