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A complete overviewIntroduction 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
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05/01/23 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
05/01/23 Atul Patil
Virtualization
• Virtualization means creating a virtual version of something like Operating System, Storage or Network.
OSAPP
OSAPP
OS APP
APPOS
APP
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
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Cloud Computing Services
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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?
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Versions of OpenStack• There are two versions OpenStack, released in a year.
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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.
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Components of OpenStack
• 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.
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Components of OpenStack• 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.
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Components of OpenStack• 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.
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Components of OpenStack
• 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.
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OpenStack Architecture
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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
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Lab-1: OpenStack Terminology Quiz
OpenStack Service Code Name
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
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Lab-2: OpenStack ComponentsOpenStack Service Code Name
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
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Lab-2: OpenStack ComponentsOpenStack Service Code Name
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
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