Business Drivers:Capacity planning (Involves ensuring that an organization has the right infrastructure, resources and services to support their business and customer base in the future)IT infrastructure be plannedEstimating usage load fluctuations.Balance peak usage requirements without unnecessary over-spending on IT infrastructure.Operating Overhead (Reducing the up-front cost of acquiring new IT infrastructure and the on-going cost of owning and maintaining said infrastructure)Actual cost of ownership needs to be consideredUnderutilized - Unpredictable usage requirementsThe administration demands can unnecessary increase operating costs(IT department itself more of a burden upon the organization)Operational Agility (The ability of a business to respond to change by being able to scale its IT resources)Responsiveness of an organization in the face of business change.Being able to scale its IT resourcesIT resources be more available and/or reliable
Technology Innovations:Grid Computing Technology (Way to provide computing resources on demand and on a pay-as-you go basis)"computing as a networked utility"You could plug into a pool of shared computing power"pay-as-you-go" computing and further formed the basis of "elasticity"Clustering Technology (Create a failover system that employs multiple similar IT resources together to provide greater availability and reliability)Back-end technology architectures that evolved in support of Web-based applications introduced load balancing, server farms, clustered servers, clustered databases.Virtualization Technology (Enables physical IT resources to provide multiple virtual images of themselves)It has enabled hardware owners to repeatedly leverage physical servers.Helped realize the notion of "server elasticity"(allowing one physical server to host a variable number of "virtual" servers).Key technology in modern cloud computing environments.
Terms:IT Resource - Physical or virtual IT-related artifact(physical server, software program, virtual server, service, storage device, network device)Virtualization - Physical IT resources to provide multiple virtual images of themselvesScaling in / Scaling out - Scaling represents the ability of the IT resource to gracefully handle increased or decreased usage demands.Cloud - Remote IT environment designed for the purpose of remotely provisioning IT resourcesOn-Premise - IT resource that is not remotely accessible via a cloud.Service - It's a software program that can be remotely invoked via a published technical interface.Cloud Service - Any remotely accessible IT resource is classified as a service.Service Agent - An event-driven program capable of transparently intercepting and processing messages sent to or from services.Characteristics:On-Demand Usage(the freedom to self-provision IT resources)Ubiquitous Access(widely accessible - support for a range of devices, transport protocols, interfaces, and security technologies.)Multi-tenancy and Resourcing Pooling.(IT resources shared by multiple users/tenants)Elasticity (ability of a cloud to gracefully and transparently scale IT resources)Measured Usage (Keep track of the usage of its IT resources by cloud consumers, pay for use monitoring mechanism)Resiliency (failover system)
Cloud delivery models Represents a specific combination of IT resources offered by a cloud provider. Infrastructure-as-a-Service(IaaS) - Provides a self-contained IT environment comprised of infrastructure-centric IT resources. Example AWSPlatform-as-a-Service(PaaS) - Provides a ready-made environment that comes with a set of pre-packaged products and tools. Example Salesforce.Software-as-a-Service(SaaS) - Represents a software product that exists as a shared cloud service offered by a cloud provider to cloud consumers. Example Office365
Cloud deployment models Represents a specific type of cloud environment, primarily distinguished by ownership and size. Public Cloud - It's publically accessible cloud environment owned by a third-party cloud provider.Community Cloud - It's either a public cloud with limited access to the members of a particular group.Private Cloud - It's privately owned and managed by a single organization for their internal customers.Hybrid Cloud - Two or more different cloud deployment models.
How I Explained REST to My Wifehttp://www.looah.com/source/view/2284
INTEL CONFIDENTIAL Intel Information Technology, FOR INTERNAL USE ONLY
History – Business Drivers
Capacity planning - Involves ensuring that an organization
has the right infrastructure, resources and services to
support their business and customer base in the future.
Operating Overhead - Reducing the up-front cost of
acquiring new IT infrastructure and the on-going cost of
owning and maintaining said infrastructure.
Operational Agility - The ability of a business to respond to
change by being able to scale its IT resources.
History – Technology Innovations
Grid Computing Technology - Way to provide
computing resources on demand and on a pay-as-you
Clustering Technology - Create a failover system that
employs multiple similar IT resources together to
provide greater availability and reliability.
Virtualization Technology - Enables physical IT resources
to provide multiple virtual images of themselves.
Cloud computing is a specialized form of distributed
computing that introduces utilization models for remotely
provisioning scalable and measured IT resources.
• On-Demand Usage
• Ubiquitous Access
• Multi-tenancy and Resourcing Pooling.
• Measured Usage
INTEL CONFIDENTIAL Intel Information Technology, FOR INTERNAL USE ONLY8
An open source software that allows any company to build
their own public or private cloud
Sits above the hypervisor and is hypervisor agnostic
KVM, Xen, Hyper-V, ESX, LXC.
Think of it as: “software that powers Amazon’s ECS+S3”
Its mission is to produce the ubiquitous open source cloud
computing platform that will meet the needs of public and
private cloud providers regardless of size, by being simple to
implement and massively scalable.
Provides "network connectivity
as a service"
Block Storage (Cinder)
Provides persistent block
storage to guest VMs
Provides virtual servers upon
Modular web-based user
interface for all services.
Catalog and repository for
virtual disk images.
Object Storage (Swift)
Allows you to store or
Authentication and authorization for all
Release Name Release date Included component code names
Austin 21 October 2010 Nova, Swift
Bexar 3 February 2011 Nova, Glance, Swift
Cactus 15 April 2011 Nova, Glance, Swift
Diablo 22 September
Nova, Glance, Swift
Essex 5 April 2012 Nova, Glance, Swift, Horizon, Keystone
Folsom 27 September
Nova, Glance, Swift, Horizon, Keystone,
Grizzly 4 April 2013 Nova, Glance, Swift, Horizon, Keystone,
Havana 17 October 2013 Nova, Glance, Swift, Horizon, Keystone,
Neutron, Cinder, Heat, Ceilometer
Icehouse 13 May 2014 Nova, Glance, Swift, Horizon, Keystone,
Neutron, Cinder, Heat, Ceilometer,
OpenStack official programs
Object Storage (Swift)
Image Service (Glance)
Block Storage (Cinder)
Database Service (Trove)
Bare metal (Ironic)
Queue service (Marconi)
Data processing (Sahara)
Key management (Barbican)
Common Libraries (Oslo)
Quality Assurance (QA)
Release cycle management
INTEL CONFIDENTIAL Intel Information Technology, FOR INTERNAL USE ONLY13
A shell script to build complete OpenStack development environment.
Supports: Ubuntu 12.04 (Precise), Fedora 20 and CentOS/RHEL 6.5( OpenSUSE
It can run single and multi-node environments
Devstack is not…
To be used on a production environment.
The exact way you would deploy OpenStack in production (but it’s close)
Who uses Devstack?
Developers working on OpenStack
Used to test changes and verify they work in a running
Used by the CI system to test changes as they are pushed to
gerrit for review.
Used for demos and proof of concept
Devstack in 30 secs…
1. git clone https://github.com/openstack-dev/devstack.git
2. cd devstack
localrc: Contains settings for each node running Devstack
stackrc: git repository and branch information