The document provides an overview of an introductory hands-on workshop on OpenStack. It discusses key topics like virtualization, types of virtualization, cloud computing models, OpenStack architecture and core projects. The workshop aims to provide an introduction to cloud computing, OpenStack deployment, configuration and usage through hands-on exercises.

1. Hands-On Workshop
on
Introduction to Open Stack
o

2. About Me
Hemraj Singh Chouhan
Red Hat Certified Instrustor(RHCI)
facebook.com/hschouhan
@hschouhan
Institute for Technical Education
Auth. Redhat Training Partner
www.linuxacademy.org
o

3. Checklist For Workshop
•Introduction about Cloud Computing
•Idea about Virtualization
•Introduction about Open Stack
•Configuring Puppet File
•Deployment of Open Stack
•Functionality of Open Stack Portal
•Launching Instances

4. What is Virtualization
Virtualization is the process of creating a software-based (or
virtual) representation of something rather than a physical
one. Virtualization can apply to applications, servers,
storage, and networks and is the single most effective way to
reduce IT expenses while boosting efficiency and agility for
all size businesses.

5. Types of Virtualization
• Full Virtualization
• Para Virtualization
• Native Virtualization (Hardware Assist)
Benefits of Virtualization
• Reduce capital and operating costs.
• Minimize or eliminate downtime.
• Increase IT productivity, efficiency, agility and responsiveness.
• Provision applications and resources faster.
• Enable business continuity and disaster recovery.
• Simplify data centre management.
• Build a true Software-Defined Data Center

6. Full Virtualization
Full Virtualization is virtualization in which the guest operating system is unaware that it is in a
virtualized environment, and therefore hardware is virtualized by the host operating system so
that the guest can issue commands to what it thinks is actual hardware, but really are just
simulated hardware devices created by the host.
Para Virtualization
Paravirtualization is virtualization in which the guest operating system (the one being
virtualized) is aware that it is a guest and accordingly has drivers that, instead of issuing
hardware commands, simply issue commands directly to the host operating system. This also
includes memory and thread management as well, which usually require unavailable
privileged instructions in the processor
Native Virtualization
Native Virtualization is a form of virtualization which allows almost code to be run directly by the
CPU without ant changes, for efficiency. The hypervisor only needs to intervene when the code
contains sensitive instructions that would interfaces with the state of the hypervisor or its supporting
environment. These sensitive instruction need to be intercepted by the hypervisor and replace with
the safe equivalent before they execute on the CPU. The hypervisor replaces the sensitive
instructions with safe instruction that emulated the operation.

7. What is Cloud Computing ?
Cloud computing, often referred to as simply “the cloud,” is the delivery of on-
demand computing resources—everything from applications to data centres—
over the Internet on a pay-for-use basis. Cloud computing is the use of
computing resources (hardware and software) that are delivered as services over
a network (typically the Internet).
These services are broadly divided into three categories:
1) Infrastructure-as-a-Service (IaaS)
2) Platform-as-a-Service (PaaS)
3) Software-as-a-Service (SaaS)
The goal of cloud computing is to provide easy, scalable access to computing
resources and IT services.

8. Models of Clouds
Cloud hosting deployment models represent the exact category of
cloud environment and are mainly distinguished by the
proprietorship, size and access. It tells about the purpose and the
nature of the cloud. Most of the organisations are willing to
implement cloud as it reduces the capital expenditure and controls
operating cost. In order to know which deployment model matches
your requirements it is necessary to know the four deployment
models.
• Public Cloud
• Private Cloud
• Hybrid Cloud
• Community Cloud

9. Public Cloud
Public clouds are owned and operated by companies that offer
rapid access over a public network to affordable computing
resources. With public cloud services, users don’t need to purchase
hardware, software, or supporting infrastructure, which is owned
and managed by providers.
Private Cloud
A private cloud is infrastructure operated solely for a single
organization, whether managed internally or by a third party, and
hosted either internally or externally. Private clouds can take
advantage of cloud’s efficiencies, while providing more control of
resources and steering clear of multi-tenancy.
Key aspects of private cloud

10. Hybrid Cloud
A hybrid cloud uses a private cloud foundation combined with the
strategic integration and use of public cloud services. The reality is
a private cloud can’t exist in isolation from the rest of a company’s
IT resources and the public cloud. Most companies with private
clouds will evolve to manage workloads across data canters,
private clouds, and public clouds—thereby creating hybrid clouds.
Community Cloud
Community cloud is a type of cloud hosting in which the setup is
mutually shared between many organisations that belong to a
particular community, i.e. banks and trading firms. It is a multi-
tenant setup that is shared among several organisations that belong
to a specific group which has similar computing apprehensions.

11. Cloud Service Model
Private
(On-Premise)
Infrastructure
(as a Service)
Platform
(as a Service)
Software
(as a Service)
Storage
Server HW
Networking
Servers
Databases
Virtualization
Runtimes
Applications
Security & Integration
Storage
Server HW
Networking
Servers
Databases
Virtualization
Runtimes
Applications
Security & Integration
Storage
Server HW
Networking
Servers
Databases
Virtualization
Runtimes
Applications
Security & Integration
Storage
Server HW
Networking
Servers
Databases
Virtualization
Runtimes
Security & Integration
Applications
Managed by you Managed by vendor

12. What is Open Stack
An Open Source Cloud Framework

13. OpenStack Cloud
OpenStack is a community of open source
developers, participating organizations and
users who are building and running the open
source cloud operating system.
“OpenStack is an Infrastructure as a service which is known as a
Cloud Operating System, that takes resources such as compute,
storage, network, virtualization technologies and controls those
resources at a data center level”
“OpenStack’s basic requirement: “Cloud must be simple to
implement and massively scalable”

14. Open Stack Architecture

15. OpenStack Projects
Nova(Compute):- Manages the lifecycle of compute instances in an OpenStack
environment. Responsibilities include spawning, scheduling and decomissioning of
machines on demand.
Neutron (Networking) :- Enables network connectivity as a service for other
OpenStack services, such as OpenStack Compute. Provides an API for users to define
networks and the attachments into them. Has a pluggable architecture that supports
many popular networking vendors and technologies.
Swift (Object Storage) :- Stores and retrieves arbitrary unstructured data objects via a
RESTful, HTTP based API. It is highly fault tolerant with its data replication and scale
out architecture. Its implementation is not like a file server with mountable directories.
Cinder (Block Storage):- Provides persistent block storage to running instances. Its
pluggable driver architecture facilitates the creation and management of block storage
devices.
Keystone (Identity) :- Provides an authentication and authorization service for other
OpenStack services. Provides a catalog of endpoints for all OpenStack services.
Glance (Image Service):- Stores and retrieves virtual machine disk images.
OpenStack Compute makes use of this during instance provisioning.

16. Horizon (Dashboard)
A web-based interface for managing OpenStack
services. It provides a graphical user interface for
operations such as launching instances, managing
networking and setting access controls.

17. Horizon Portal

18. OpenStack Architecture

19. “Openstack is Growing
Everyday”

20. OpenStack Releases and Versions

21. Thankyou
For any Query & Course related details : -
www.facebook.com/LinuxBhopal
Call us at – 4700646, 9981511646
info@linuxacademy.org

22. References:-
https://releases.openstack.org/
https://www.openstack.org/zh_CN/software/
http://docs.openstack.org/ops-guide/architecture.html
https://www.rackspace.com/en-in/openstack
https://wiki.openstack.org/wiki/Tacker
http://docs.openstack.org/developer/horizon/topics/settings.html