private cloud-webinar
DESCRIPTION
TRANSCRIPT
• Buy computing power, storage or services on demand
• Service Delivery Model
• What is given “as a Service”
• Pay per use
• Self service provisioning
• Virtually unlimited resources
• Resource sharing
• Cloud Deployment Model
• Where is the cloud deployed
Cloud Computing
Cloud Computing – Service Delivery Model
For end-users
For developers, integrators, architects
For infrastructure specialists
Cloud Computing – Deployment Model
● Public – IaaS, PaaS, SaaS available on the Internet – Use one of the cloud service providers – Information stored and managed by provider - SLA
● Private – Have a cloud, in-house – IaaS provides by hardware on your data centers – PaaS running on your IaaS – SaaS executing on your PaaS
● Hybrid ● Community
Hybrid cloud
● Combination of private + public cloud ● Private cloud for core services ● Public cloud for burst capacity
– Short term
Bridging private & public clouds
1. Use WSO2 Cloud Services Gateway (CSG)
2. Use Amazon Virtual Private Cloud
(VPC)
WSO2 Cloud Services Gateway
Amazon Virtual Private Cloud
http://aws.amazon.com/vpc/
SOA & cloud computing
Enterprise IT in 2010
Enterprise IT in 2015+
Why public cloud?
● No need to buy machines
● No need to setup
● No need to spend anything, if we are not using
● No need to wait, if you need more computing power
● It is just out there, ready to be used
Why not public cloud?
● Data is wealth, key to competitive advantage – Not supposed to move it out of premises
● Security reasons – Take no chance on sensitive elements in IT
● Mainframe -> cloud – Legacy apps are better off the way they are
● Quality of service - Availability, SLA
● Regulations – Government and industry regulations
Prerequisites for private cloud
● Hardware – CPUs supporting virtualization – Large storage – High speed network
● Cloud ready OS – Ubuntu Server LTS
● Cloud infrastructure – Eucalyptus
Private cloud - IaaS
Private cloud - UEC
● EC2 compatible API – Stratos Autoscaling code on EC2
● Open source & wide availability
● Ubuntu LTS – Support for 5 years
UEC configuration tips
● Choose the right topology – # physical systems – Where CLC/Walrus/CC/NC is installed – https://help.ubuntu.com/community/UEC/Topologies
● Network configuration – https://help.ubuntu.com/community/UEC/Tips
● Monitor instance memory usage
Beyond private IaaS
● Define your purpose – Why do I want a private IaaS? – How to utilize it – Possible usage patterns
● Too low level? – Deal with machines/instances – A minimal OS
● IaaS = cloud?!
A complete platform
● PaaS – Running on top of your IaaS – More high-level – Easier to develop
● Concentrate on your apps
● A cloud native PaaS – Take advantage of “cloud features”
Cloud native
• Supports deployment into a Cloud: – Dynamic and Just-in-Time Discovery and Wiring
• Able to work with the underlying cloud infrastructure – Elasticity
• Provisioned as a Service – Multi-tenant, Portal and Web Service-based provisioning
• Managed as a Service – Billed and Metered, Flexibly Monitored
• Incrementally Deployed and Tested – Supports continuous update, side-by-side operation, in-
place testing and incremental production
Cloud native middleware
Summary
• Cloud computing
• Public / Private / Hybrid / Community clouds
• Bridging public – private clouds
• Future of enterprise IT
• Public cloud pros/cons, why private cloud
• Private cloud – UEC
• Beyond private cloud
• PaaS on top of IaaS - Stratos
Thank you!
Questions?