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LOGO
Experiences in building a PaaS platformBhavanisankara SapaligaJagadish Ramu
Conference Session - CON7735
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Oracle OpenWorld Bookstore
• Visit the Oracle OpenWorld Bookstore for a fabulous selection of books on many of the conference topics and more!
• Bookstore located at Moscone West, Level 2• All Books at 20% Discount
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The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle.
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Program Agenda
• Cloud Computing• PaaS and Java EE• PaaS implications on application deployment• Design Model• Service Orchestration• Resources
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Cloud Computing
• Illusion of infinite computing resources available on demand
• Elimination of an up-front commitment by cloud users• Ability to pay for use of computing resources on a short-
term basis
What’s new?
(+) Above the Clouds, Armbrust et al, UC Berkeley, 2009
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Cloud Computing
• On-demand Self-Service• Broad network access• Resource Pooling• Rapid Elasticity• Measured Service
Essential Characteristics
(*) NIST Definition of Cloud Computing – 800-145 (Draft)
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Cloud Computing
• Private Cloud– Operated solely for an organization– On-premise or off-premise
• Community Cloud• Public Cloud
– Access to general public• Hybrid Cloud
– 2 or more clouds, Cloud Bursting
Deployment Models
(*) NIST Definition of Cloud Computing – 800-145 (Draft)
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Cloud Computing
• Software as a Service (SaaS)• Platform as a Service (PaaS)
– Deploy customer-created applications– Using languages and tools supported by PaaS Provider– No control of underlying cloud infrastructure– Control over deployed applications, hosting env. Configurations
• Infrastructure as a Service (IaaS)
Service Models
(*) NIST Definition of Cloud Computing – 800-145 (Draft)
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Program Agenda
• Cloud Computing• PaaS and Java EE• PaaS implications on application deployment• Design Model• Service Orchestration• Resources
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PaaS and Java EE
• Common programming model for enterprise developers• Runtime handles application’s infrastructure concerns• Declarative resource references• Scalable (scale-out) component models
Java EE design principles and capabilities
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PaaS and Java EE
• Enhancements– New Roles for PaaS– Services as first class citizens– Multitenancy
• Evolution, not a revolution!
Java EE 7: “Making Java EE ready for the cloud”
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New PaaS Roles in Java EE 7
• PaaS Product Vendor• PaaS Provider• PaaS Account Manager• PaaS Customer• Application Submitter• Application Administrator• End-User
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Java EE 7 Roles in a PaaS scenario
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Program Agenda
• Cloud Computing• PaaS and Java EE• PaaS implications on application deployment• Design Model• Service Orchestration• Resources
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PaaS Implications on Deployment• Simplified PaaS Application Deployment
– Single-click, self-service, “push to cloud”
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PaaS Implications on Deployment
• Automatic Service Provisioning and Management– Service Orchestration
• Automatic Service Dependency discovery• Service Provisioning and Association
– Handle operational infrastructure concerns automatically• Network configuration, HA, Clustering, Load Balancing …
– Application and Service deployment versioning
Services Management
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PaaS Implications on Deployment
• Scalable virtualized on-demand environment– Support multiple cloud deployment models
• Public, Private, Hybrid– PaaS Provider decoupled from IaaS infrastructure– Multi-tenancy
Virtualized runtimes
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PaaS Implications on Deployment
• Automatic Scaling of Services– Scale to application’s needs– User-defined alerts and actions
• Control over application hosting environment– Flexibility in choice of application services, framework– Rich service configuration– Shared services– Extensible runtime to allow new Services
Scaling and Operations
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A sample application stack
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Traditional Java EE Application Deployment
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DemoClassic Deployment
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Java EE PaaS Application Deployment
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DemoPaaS Deployment
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Program Agenda
• Cloud Computing• PaaS and Java EE• PaaS implications on application deployment• Design Model• Service Orchestration• Resources
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Service Orchestration
Enable single-click deployment of a PaaS application through automatic service dependency discovery, service provisioning and service association
One-liner
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Terminology
• Service• ServiceType
– Java EE, RDBMS, HTTP Load Balancer etc.• Services – scope and lifecycle
– Provisioned Services• Application scoped• Shared
– External (a priori ) services
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Specification of Service Metadata
• Optional!– When not specified (vanilla EE app archives)
• Orchestration Engine automatically handles discovery of service deps
• Automatic wiring to default Service Templates– Metadata may be specified when:
• Finer grain control of application environment desired• Application-specific Service configuration
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Design Model
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Specification of Service Metadata
• Service Definition– Metadata used to provision and configure a Service
• What : Service characteristics (functional and non-functional) → Template matching
• How : Explicit Template specification → Template wiring• Service Reference
– An application component’s dependency on a Service• Explicit : User-specified through deployment descriptors• Implicit and Discovered: Information contained within the
archive
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Service Dependency Specification
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Sample Service Definition
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Sample Service Reference
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Program Agenda
• Cloud Computing• PaaS and Java EE• PaaS implications on application deployment• Design Model• Service Orchestration• Resources
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GlassFish PaaS Runtime Architecture
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Service Orchestration Flow
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Service Dependency Discovery
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Service Orchestration Flow
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Service Provisioning
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Service Orchestration Flow
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Service Association
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PaaS Deployment Usecases
• GlassFish 4.0 latest builds– PaaS Deployment/Undeployment– Application enable/disable– Elastic scaling of GlassFish Services
Available now in GlassFish 4.0
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PaaS Deployment Usecases
• Redeployment support with retain services• PaaS Application Versioning• Shared and External Services• Support for other ServiceTypes – MQ …
Candidate Features
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Program Agenda
• Cloud Computing• PaaS and Java EE• PaaS implications on application deployment• Design Model• Service Orchestration• Resources
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Resources
• GlassFish 4.0 http://download.java.net/glassfish/4.0/promoted/– Service Orchestration Onepager http://bit.ly/pXOzFP– Java EE 7 keynote demo http://bit.ly/q9T7Z2
• Java EE 7 http://jcp.org//en/jsr/detail?id=342– PaaS Model http://bit.ly/o3XZIP
• Above the Clouds: A Berkeley View of Cloud Computing http://bit.ly/15MEL0
• The NIST Definition of Cloud Computing -- Special Publication 800-145(Draft) http://1.usa.gov/eZ8PSn
For more information
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Key Features
• Simplified Deployment in PaaS runtimes• Standards based application development• Support multiple Deployment Models and make
transition seamless
Service Orchestration
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Q&A
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Classic Duke Future Tech Duke
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