TOSCA is a new standard facilitating platform independent description of Cloud applications. OpenTOSCA is an open source TOSCA ecosystem including the modeling tool "Winery", the TOSCA runtime "OpenTOSCA", and the self-service portal "Vinothek".

1. TOSCA and OpenTOSCA
Contents:
1. TOSCA Introduction
2. OpenTOSCA Ecosystem Overview
Gefördert durch:
Tobias Binz, Uwe Breitenbücher, Oliver Kopp, Frank Leymann
Förderschwerpunkt:
Projektträger:
www.opentosca.org

2. TOSCA Introduction
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3. OASIS TOSCA
CloudCycle
Topology and Orchestration
Specification for Cloud Applications
Goals:
• Automation of Deployment and Management
• Portability
• Interoperability
• Vendor-neutral Ecosystem
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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4. OASIS TOSCA
CloudCycle
Topology and Orchestration
Specification for Cloud Applications
100+ participants from 40+ companies:
OASIS Topology and Orchestration Specification for Cloud Applications (TOSCA) TC
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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5. TOSCA Overview
CloudCycle
Topology and Orchestration
Specification for Cloud
Applications
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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6. CloudCycle
TOSCA Overview
Topology
Service Structure
Orchestration
Service Orchestration for
Deployment & Management
WebServer
(Tomcat)
Start VM
OperatingSystem
(Ubuntu 12.04 LTS)
Install
Tomcat
VirtualServer
EC2 (AWS EC2 Server)
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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7. Graphical Example of an Application Topology
CloudCycle
OnlineBookstore
(WAR)
WebServer
(Tomcat)
OperatingSystem
(Ubuntu 12.04 LTS)
VirtualServer
EC2 (AWS EC2 Server)
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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8. Graphical Example of an Application Topology
OnlineBookstore
(WAR)
Node Template
CloudCycle
(hostedOn)
Node Type
WebServer
(Tomcat)
Relationship Template
(hostedOn)
OperatingSystem
(Ubuntu 12.04 LTS)
(hostedOn)
Relationship Type
VirtualServer
EC2 (AWS EC2 Server)
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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9. Properties
CloudCycle
OnlineBookstore
(WAR)
WebServer
(Tomcat)
User: Admin
PW: 7a!7q
Properties
OperatingSystem
(Ubuntu 12.04 LTS)
VirtualServer
EC2 (AWS EC2 Server)
IP: 147.187.2.1
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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10. Deployment Artifacts
OnlineBookstore
(WAR)

bookstore.war
CloudCycle

WebServer
(Tomcat)
Artifacts providing the
node’s functionality
Multiple Deployment
Artifacts possible
Tomcat.zip
Tomcat7 (apt, deb, …)
http://tomcat.apache.org
OperatingSystem
(Ubuntu 12.04 LTS)
Ubuntu.ovf
ami-d0f89fb9t
CustomizedUbuntu.img
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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11. Management Operations & Implementation Artifacts
appSpecific
WebServer
(Tomcat)
CloudCycle
OnlineBookstore
(WAR)
start, stop
deployWAR
OperatingSystem installPkg
(Ubuntu 12.04 LTS) execScript
EC2
createVM
VirtualServer
(AWS EC2 Server) terminate
Define management operations
of nodes (and relationships)
 Input & output parameters
and their data types
 Implemented by
Implementation Artifacts
(Web Service, REST-service,
Script, …)
instanceType : String
region : String
accessKey : String
…
Instance ID : String
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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12. Capabilities and Requirements I
Application
(WAR)
C
CloudCycle
(hostedOn)
I provide a Linux
Operating System
WebServer
(TomCat)
Requirement
Capability
R
I need to be
hosted on a Linux
Operating System
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
OperatingSystem
(Ubuntu)
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13. Capabilities and Requirements II
Application
(WAR)
CloudCycle
(hostedOn)
WebServer
(TomCat)
Requirement
(Tomcat-installedOn-Ubuntu)
Capability
OperatingSystem
(Ubuntu)
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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14. CloudCycle
TOSCA Overview
Topology
Service Structure
WebServer
(Tomcat)
OperatingSystem
(Ubuntu 12.04 LTS)
Orchestration
Service Orchestration for
Deployment & Management
Start VM
Install
Tomcat
VirtualServer
EC2 (AWS EC2 Server)
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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15. Two Flavors of Processing

Declarative  What?

CloudCycle

WebServer
(Tomcat)
Example: “I want this, realize it!”
Runtime interprets topology
and does deployment
OperatingSystem
(Ubuntu 12.04 LTS)
VirtualServer
EC2 (AWS EC2 Server)

Imperative  How?


WebServer
(Tomcat)
Example: “First do this, than that.”
Management plan explicitly describes
each step
Start VM
OperatingSystem
(Ubuntu 12.04 LTS)
Install
Tomcat
VirtualServer
EC2 (AWS EC2 Server)
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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16. Declarative vs. Imperative – Discussion
CloudCycle
Imperative Style
Declarative Style
Logic completely
contained in
Application
Logic completely
implemented by
Container
Hybrid Approach
Deployment Flow
Flexibility & Customizability
Ease of Modeling
Low Entry Barrier
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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17. Management Plans Overview
Deployment Logic is implemented by portable Plans
CloudCycle
Install
Tomcat
Deploy
Application
Application
(WAR)
(hostedOn)
2
deploy
WebServer
(TomCat)
1
(hostedOn)
installPkg
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
OperatingSystem
(Ubuntu)
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18. Plans

Plans are workflows (BPEL, BPMN, etc.)


CloudCycle






Plans are portable, reusable, and automated
Parallel execution
Error handling
Traceability/auditability
Long running processes
Recoverability
Human tasks
Management logic shipped together with
application


Management not hard-wired into the TOSCA container
Contained in CSAR (TOSCA packaging format)
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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19. What’s contained in an Cloud Service Archive (CSAR)?
Topology Templates
Types
CloudCycle
OnlineBookstore
(WAR)
Management Plans
X
Type
(hostedOn)
WebServer
(Tomcat)
Properties
Definition
Interfaces
(hostedOn)
Installables
Services
Images
OperatingSystem
(Ubuntu 12.04 LTS)
Scripts
(hostedOn)
EC2
VirtualServer
(AWS EC2 Server)
Deployment Artifacts Implementation Artifacts
Cloud Service Archive (CSAR)
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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20. TOSCA Portability
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21. Portability Note

CloudCycle


TOSCA deals with portability of Service Templates
Portability of the ingredients of an IT Service
(especially the code artifacts) is not addressed
by TOSCA
Similarly, mobility of data used by a corresponding
service instance is not in the scope of TOSCA
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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22. Why is this portable ?

CloudCycle



Management operations defined in TOSCA standard
Management Operations, i.e., Implementation
Artifacts, are deployed by the TOSCA runtime
Plans defined using standards (e.g., BPEL, BPMN)
Plans (1) and Management Operations (2) are
“bound” (i.e., connected) by the container
 Implementation Artifacts on the realization level
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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23. OpenTOSCA Ecosystem Overview
Open Source TOSCA Ecosystem
www.opentosca.org
© IAAS, University of Stuttgart
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24. Container
Self-Service
CloudCycle
Modeling Tool
Creation and modeling of TOSCA applications, including
graphical modeling of topologies and management plans.
Exported as Cloud Service Archive (CSAR) for TOSCA runtime.
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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25. Container
Self-Service
CloudCycle
Modeling Tool
Creation and modeling of TOSCA applications, including
graphical modeling of topologies and management plans.
Exported as Cloud Service Archive (CSAR) for TOSCA runtime.
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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26. Container
Self-Service
CloudCycle
Modeling Tool
TOSCA runtime & middleware
Processes CSARs, runs plans, manages state, …
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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27. Container
Self-Service
CloudCycle
Modeling Tool
Offering the deployed CSARs to the
end user for easy instantiation
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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28. Container
Self-Service
CloudCycle
Modeling Tool
Offering the deployed CSARs to the
end user for easy instantiation
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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29. CloudCycle
Ecosystem Structure & Relations
Admin
Admin UI
/admin
Self-Service UI
/vinothek
End User
Use container
API
Modeling Tool
/winery
CSAR
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
OpenTOSCA
Container
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30. CloudCycle
Demo Videos
Demo videos are available at
http://demo.opentosca.org/
© Binz, Breitenbücher, Kopp, Leymann | IAAS | University of Stuttgart
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31. Thank you!
For more information:
www.opentosca.org
© IAAS, University of Stuttgart
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