Introduction to Open stack - An Overview

A complete overview
Introduction to Openstack

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AGENDA
• What is hypervisor and types.
• Virtualization
• What is Cloud Computing.
• Cloud Computing Services.
• What is OpenStack
• OpenStack Versions
• Components of OpenStack
• OpenStack Architecture
• Lab1: OpenStack Terminology Quiz
• Lab2: OpenStack Components Quiz
4

08/19/16 Bharat Kumar Kobagana
 What is Hypervisor?
A hypervisor, also called a virtual machine manager, is a program that allows multiple operating systems to
share a single hardware host. Each operating system appears to have the host's processor, memory, and other
resources all to itself.
Type-1, native or bare-metal hypervisors
These hypervisors run directly on the host's hardware to control the hardware and to manage guest operating
systems. For this reason, they are sometimes called bare metal hypervisors.
Examples: Citrix XenServer, Microsoft Hyper-V and VMware ESX/ESXi.
Type-2 or hosted hypervisors
These hypervisors run on a conventional operating system just as other computer programs do. A guest
operating system runs as a process on the host.
Examples: VMware Workstation, VMware Player, VirtualBox, Parallels Desktop for Mac and QEMU

Hypervisor
08/19/16 Atul Patil

Virtualization
• Virtualization means creating a virtual version
of something like Operating System, Storage
or Network.
OS
APP
OS
A
P
P
OS A
P
P
A
P
P
OS
A
P
P
Before Virtualization
M1 M2 M3
M4
Virtualized Environment7

Cloud Computing
• Cloud computing or cloud refers to delivery of
computing resources “on-demand”.
• Services provided by cloud computing:
– IaaS
– PaaS
– SaaS
8

OpenStack
• OpenStack is a global collaboration of developers and cloud
computing technologists producing the ubiquitous open
source cloud computing platform for public and private
clouds.
• - Openstack.org
Openstack is a set of software tools for building and managing
cloud computing platforms for public and private clouds.
- Opensource.com
What is openstack?
10

Versions of OpenStack
• There are two versions OpenStack, released in a year.
11
Release Name Openstack Version number for Block Storage, Compute, Identity, Image and
Networking.
Newton 2016.2
Mitaka 2016.1
Liberty 2015.2
Kilo 2015.1
Juno 2014.2
Icehouse 2014.1
Havana 2013.2
Grizzly 2013.1
Folsom 2012.2
Essex 2012.1
Diablo 2011.3
Cactus 2011.2
Bexar 2011.1
Austin

Components of OpenStack
• Dashboard – Horizon:
– Provides a web-based self-service portal to
interact with underlying OpenStack services, such
as launching an instance, assigning IP addresses
and configuring access controls.
• Compute – Nova:
– Manages the lifecycle of compute instances in an
OpenStack environment. Responsibilities include
spawning, scheduling and decommissioning of
virtual machines on demand.
12

• Networking – Neutron:
– Enables Network-Connectivity-as-a-Service for
other OpenStack services, such as OpenStack
Compute.
• Object Store – Swift:
– 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. Like Amazon S3.
13

• Block Store – Cinder:
– Provides persistent block storage to running
instances. Provides extra storage to VMs.
• Identity Service – Keystone:
– Provides an authentication and authorization
service for other OpenStack services. Provides a
catalog of endpoints for all OpenStack services.
• Image Service – Glance:
– Stores and retrieves virtual machine disk images.
OpenStack Compute makes use of this during
instance provisioning.
14

• Telemetry – Ceilometer:
– Orchestrates multiple composite cloud
applications.
• Database as a Service – Trove:
– Provides scalable and reliable Cloud Database-as-
a-Service functionality for both relational and non-
relational database engines.
• Data processing service – Sahara:
– Provides capabilities to provision and scale
Hadoop clusters in OpenStack by specifying
parameters like Hadoop version, cluster topology
and nodes hardware details.
15

• Orchestration – Heat:
– Orchestrates multiple composite cloud
applications by using either the native HOT
template.
• Baremetal as a service – Ironic :
– Provides VMs with out Operating System. We can
use PXE boot to install Operating System.
16

Lab-1: OpenStack Terminology Quiz
OpenStack Service Code Name
Compute Service Keystone
Image Service Cinder
Orchestration Service Sahara
Block Store Trove
Object Store Heat
Data Processing Service Neutron
Database Service Nova
Telemetry Cinder
Identity Service Glance
Networking Swift
Dashboard Ceilometer
18

Lab-1: OpenStack Terminology Quiz
Compute Service Nova
Image Service Glance
Orchestration Service Heat
Block Store Cinder
Object Store Swift
Data Processing Service Sahara
Database Service Trove
Telemetry Ceilometer
Identity Service Keystone
Networking Neutron
Dashboard Horizon
19

Lab-2: OpenStack Components
Manages the life cycle of instances Swift
Provides Virtual Disk Images Neutron
HOT Templates Trove
Extra storage to running instances Horizon
Unstructured Data Cinder
Hadoop Ceilometer
Relational & Non relational databases Keystone
Billing & Metering Nova
Authentication & Authorization Heat
IP Address to VMs Sahara
User Interface Glance
20

Lab-2: OpenStack Components
Manages the life cycle of instances Nova
Provides Virtual Disk Images Glance
HOT Templates Heat
Extra storage to running instances Cinder
Unstructured Data Swift
Hadoop Sahara
Relational & Non relational databases Trove
Billing & Metering Ceilometer
Authentication & Authorization Keystone
IP Address to VMs Neutron
User Interface Horizon
21

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Introduction to Open stack - An Overview

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