Study on openstack
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Study on OpenStack. By Jai Krishna. List of Components . Introduction Components Architecture Where it is used. What is openstack. OpenStack is a cloud operating system that controls large pools of compute, storage, and networking resources throughout a datacenter with a dashboard.

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Study on OpenStack

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Study on OpenStack

By

Jai Krishna


List of Components

  • Introduction

  • Components

  • Architecture

  • Where it is used


What is openstack

  • OpenStack is a cloud operating system that controls large pools of compute, storage, and networking resources throughout a datacenter with a dashboard.


Components

Basic building Components are

  • Compute (Nova)

  • Object Storage (Swift)

  • Block Storage (Cinder)

  • Networking (Neutron)

  • Dashboard (Horizon)


Components(cont.)

Apart from above there are some Shared Components

  • Identity Service (Keystone)

  • Image Service (Glance)

  • Telemetry (Ceilometer)

  • Orchestration (Heat)


Compute (NOva)

  • Provision and  manages large networks of virtual machines


Compute (Nova )

  • Base image state with no running instances

  • Instance creation from image and run time state


Storage

Object Storage:

Object Storage provides a fully distributed, API-accessible storage platform that can be integrated directly into applications or used for backup, archiving and data retention.

Block Storage:

Block Storage allows block of storages to be exposed and connected to compute instances for expanded storage, better performance and integration with enterprise storage platforms


Networking(neuron)

  • Neutron is an OpenStack project to provide "networking as a service" between interface devices.


Dashboard (horizon)

  • Dashboard provides a web based user interface to OpenStack services including Nova, Swift, Keystone, etc.

  • The OpenStack dashboard provides administrators and users a graphical interface to access, provision and automate cloud-based resources.


Sample Dashboard


Identity Service (Keystone)

  • Keystone is the identity service used by OpenStack for authentication (authN) and high-level authorization (authZ).

  • It currently supports token-based authN and user-service authorization.


Image Service (Glance)

  • The OpenStack Image Service provides discovery, registration and delivery services for disk and server images


Telemetry (Ceilometer)

  • The OpenStack Telemetry service aggregates usage and performance data across the services deployed in an OpenStackcloud.


Orchestration (Heat)

  • OpenStack Heat program is to create a human- and machine-accessible service for managing the entire lifecycle of infrastructure and applications within OpenStack clouds.


Architecture


Conceptual architecture


Release History of openstack


Small comparison


Use Cases of Openstack:

  • IaaScompute platform

  • Processing big data with tools like Hadoop

  • Scaling compute up and down to meet demand for web resources and applications

  • High-performance computing (HPC) environments processing diverse and intensive workloads

  • Different users of OpenStack are AT&T, HP cloud services, PayPal, Rackspace, Sony online gaming systems, Yahoo, Wikimedia labs, Intel, NASA etc...


References

  • http://www.openstack.org/

  • http://docs.openstack.org/

  • https://wiki.openstack.org/wiki/Main_Page

  • http://en.wikipedia.org/wiki/OpenStack


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