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Summer School - Demonstrating Cloud Value


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Summer School - Demonstrating Cloud Value

  1. 1. lean . enterprise . middleware Demonstrating Cloud Value Chris Haddad Technology evangelism, strategy, and roadmaps Follow me @cobiacomm on Twitter Read more about our PaaS Story at and-paas-roi-multi-tenant-shared-container-paas/ © WSO2 2011. Not for redistribution. Commercial in Confidence.
  2. 2. Measuring Value • Time • Cost • Resources
  3. 3. What is your value baseline?
  4. 4. Running a Cloud Business Measuring Revenue versus CostSource:
  5. 5. Increasing Value: Cloud Objectives• Financial Value • Shift from capital expense into operational expense • Pay only for what you use• Efficiency Value • Right-size solution footprint to match demand • Pool resources and increase utilization• Agility Value • Reduce time to market through DevOps, automated governance, and on- demand services
  6. 6. Cloud Business Value Blockers • Silo owners • Adoption curve • Trust barrier • Unknown baseline • Funding modelSource:
  7. 7. Overcoming Cloud Value Blockers: WSO2 AppFactory
  8. 8. Architecture Shapes Value• Resource friendly := small footprint, minimal consumption, parallelizable workloads• Poolablility := Non-exclusive use, short usage duration• Automation := decrease activity time, latency between steps• Governance := encourage trust, communication, coordination• Distribution friendly:= Stateless, autonomous
  9. 9. Cloud Application Platform ArchitectureCloud PaaS Run-time Framework (Stratos) Cloud Management Service-aware, tenant-aware Load Balancer Stratos ControllerPaaS Manager Cloud Native Container(s) Asset/Code Deployer Cloud Governance Asset/Code Synchronizer Tenant1 Tenant(n) Metering and Billing Asset Repositories (code, Identity services, policies) Management IaaS
  10. 10. PaaS ArchitectureWhat is a partition?• Partitions define distinct container resource pools• Partition containers to tune container sharing, service resource allocation, QoS, and utilization• Containers may be assigned into service-specific or tenant specific partitions
  11. 11. Partitions modify value proposition Multiple partitions and Single, flat namespace segmented name space
  12. 12. Tenant Scaling Method Impacts Value PropositionSingle Application Tenant Multiple Application Tenants per per Shared Application Platform Dedicated Application Service Container Server Container
  13. 13. Container Tenancy Implications• Traditional application servers can host multiple applications, but resource isolation limitations may restrict sharing • Common limitations: code deployment, security, administration • Implication • 1 application server per tenant • (N) application server license per (N) tenants • (N) IaaS node per (N) tenant• Multi-tenant application servers can host multiple tenant applications with appropriate resource isolation • Limitations overcome by: • OSGI class loading, custom security manager, Cloud aware code deployer, tenant-aware administration screens • 1 application server per N (~7-100) tenants • 1 application server license per N tenants
  14. 14. Cloud Topology and ValueFive (5) Container Instances, Three Tenants Tenant Application Solution Traffic Tenant- Tenant- Tenant- Tenant Partition 1 2 3 Container AS-1 ESB-1 AS-2 ESB-2 ESB-3 Tenant- Tenant- Tenant- Tenant- Tenant- Tenant Context 1 1 2 2 3
  15. 15. Partitioning and Tenancy ImplicationsThree (3) Container Instances, Three Tenants Tenant Application Solution Traffic Web Service Partition ESB Application Container ESB-1 ESB-2 AS-1 Tenant Context Tenant-1 Tenant-3 Tenant-2 Tenant-1 Tenant-2
  16. 16. Platform as a Service Total Cost of Ownership Use Case: ESB-as-a-Service, HighTenant Count
  17. 17. Platform as a Service Total Cost of Ownership Use Case: ESB-as-a-Service, High Tenant Count
  18. 18. Key Value Metrics• Foundation • Time to create new application environment • Time to redeploy application• Optimize • Minimum and maximum scale • Scale frequency (i.e. time to scale up/down)• Transformation • Time and effort required integrating business process, event processor – creating a complex app. • Time and effort required to apply policy across tenant(s) • Cost to operate application per user or transaction
  19. 19. Resources• WSO2 Stratos •• WSO2 AppFactory • • What is AppFactory? Blog post• Cloud Value • PaaS Total Cost of Ownership White Paper
  20. 20. Follow us:Contact us:!/wso2
  21. 21. lean . enterprise . middleware