1. OCCIware
A framework for Everything as a Service
Marc Dutoo, Open Wide
Jean Parpaillon, Inria
CloudExpo, London
March, 12th 2015

2. Overview
Speakers
– Marc Dutoo, Head of R&D Dept. at Open Wide
● OCCIware coordinator, SOA / Data expert
– Jean Parpaillon, R&D engineer at Inria
● OW2 TC Chairman, author or erocci
Schedule
– 15' OCCI(ware) introduction
– 15' XaaS demo with erocci

3. OCCIware Factsheet
• 72 man month, 5,6m€ budget, sponsored by
French ministry of Industry
• 3 academics, 5 companies, 2 associations
• To lower Cloud Computing adoption costs and
break up barriers between its various
implementations, layers, domains
- Especially Data Center, deployment, Big Data, Linked
Data
• By bringing to OGF's Open Cloud Computing
Interface (OCCI) the power of formal languages
and model driven engineering (MDE)

4. Cloud Computing – the problem
Layers
Domains
Image : wikipedia.org

5. Partitioning! Lock in!
No one-fits-all
solution!
Lack of
standards!
Layers
Domains
Too many
standards!
Lack of
ecosystem!
Cloud Computing – the problem
Image : wikipedia.org

6. OCCI 101
OCCI Core
(metamodel)
Network
Container
Environment
Compute
- memory
- started
- start()
Database
Application
Storage
Router
Deployable
NetworkLink
DatabaseLink
EnvironmentLink
Everything
is Resource
or Link, be
it at …
Platform
level
Infrastructure
level
Application
level
OCCI Extensions (models)

7. OCCIware Outputs
• A formal, model-driven platform to manage any Cloud
resource
- Formal model of OCCI, on MIT's Alloy – Inria & TSP
- OCCIware Studio, on Eclipse EMF & Sirius – Obeo
- OCCIware@Runtime & console, using Models@Runtime –
ActiveEon & Scalair
- Deploy@OCCIware - ActiveEon & UJF
• 4 Use cases
- Data Center as a Service / IaaS, on Scalair infrastructure
- Big Data / HPC, on ActiveEon ProActive HPC platform
- Linked Open Data, on Ozwillo app store's Datacore – Pôle
Numérique & Open Wide
- Deployment interoperability, on Linagora & ActiveEon's
• Open Source (OW2, Eclipse) and standardization (OGF) with
help from a 10-strong international Scientific Orientation
Committee

8. 12/03/15 11
OCCI Runtime Architecture

9. 12/03/15 12
OCCI Model 1 : blog
<?xml version="1.0" encoding="UTF­8"?>
<occi:extension xmlns:occi="http://schemas.ogf.org/occi" xmlns:xs="
http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema­instance"
xsi:schemaLocation="http://example.org/occi occi.xsd " name="A REST blog"
status="experimental" version="1">
<occi:kind scheme="http://example.org/occi/test#" term="blog" title="A Blog">
<occi:parent scheme="http://schemas.ogf.org/occi/core#" term="resource" />
<occi:attribute name="example.blog.title" type="xs:string" title="Blog title" use="required" />
</occi:kind>
<occi:kind scheme="http://example.org/occi/test#" term="entry" title="entry">
<occi:parent scheme="http://schemas.ogf.org/occi/core#" term="resource" />
<occi:attribute name="blog.entry.title" type="xs:string" title="Blog entry title" use="required" />
<occi:attribute name="blog.entry.date" type="xs:string" title="Creation date" use="optional" />
<occi:attribute name="blog.entry.content" type="xs:string" title="Entry content" use="required"
/>
</occi:kind>
<occi:kind scheme="http://example.org/occi/test#" term="user" title="Blog user">
<occi:parent scheme="http://schemas.ogf.org/occi/core#" term="resources" />
<occi:attribute name="blog.user.name" type="xs:string" title="User name" use="required" />
<occi:attribute name="blog.user.email" type="xs:string" title="User email" />
<occi:attribute name="blog.user.role" type="xs:string" title="User role" />
</occi:kind>
<occi:kind scheme="http://example.org/occi/test#" term="author" title="Author">
<occi:parent scheme="http://schemas.ogf.org/occi/core#" term="link" />
</occi:kind>
</occi:extension>
example.blog.title : string (1..1)
blog
summary : string (0..1)
resource link
target
sourcelinks
example.entry.title : string (1..1)
example.entry.date : string (0..1)
example.entry.content : string (1..1)
entry
example.user.name : string (1..1)
example.user.email : string (0..1)
example.user.role : string (0..1)
user
author

10. 12/03/15 13
OCCI Model 2 : storage
<?xml version="1.0" encoding="UTF­8"?>
<occi:extension xmlns:occi="http://schemas.ogf.org/occi" xmlns:xs="
http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema­instance"
xsi:schemaLocation="http://schemas.ogf.org/occi occi.xsd " name="Storage" status="experimental"
version="1">
<occi:kind term="container" scheme="http://schemas.ogf.org/occi/storage#" title="Container Resource
(dir)">
<occi:parent scheme="http://schemas.ogf.org/occi/core#" term="resource" />
<occi:attribute name="occi.storage.size" type="xs:integer" title="Container Size (#children)" />
</occi:kind>
<occi:kind term="containerentry" scheme="http://schemas.ogf.org/occi/storage#" title="Container Entry
Link">
<occi:parent scheme="http://schemas.ogf.org/occi/core#" term="link" />
</occi:kind>
<occi:kind term="data" scheme="http://schemas.ogf.org/occi/storage#" title="Data Resource (file)">
<occi:parent scheme="http://schemas.ogf.org/occi/core#" term="resource" />
<occi:attribute name="occi.storage.mimetype" type="xs:string" title="Content Mimetype" />
<occi:attribute name="occi.storage.size" type="xs:integer" title="Content Size" />
</occi:kind>
<occi:mixin term="rawdata" scheme="http://schemas.ogf.org/occi/storage#" title="Raw data mixin">
<occi:attribute name="occi.storage.raw" type="xs:anyURI" title="Data content link" />
</occi:mixin>
<occi:mixin term="thumbnail" scheme="http://schemas.ogf.org/occi/storage#" title="Data thumbnail
(light representation)" >
<occi:attribute name="occi.storage.thumbnail.id" type="xs:anyURI" title="" />
<occi:attribute name="occi.storage.thumbnail.mimetype" type="xs:string" title="" />
</occi:mixin>
</occi:extension>
occi.storage.size : integer (0..1)
container
summary : string (0..1)
ressource link
target
sourcelinks
occi.storage.mimetype: string (0..1)
occi.storage.size : integer (0..1)
data
occi.storage.raw : uri (1..1)
rawdata : mixin
occi.storage.thumbnail.id: uri (0..1)
occi.storage.thumbnail.mimetype : string (0..1)
thumbnail : mixin

11. 12/03/15 14
OCCI Model 3 : admin
<?xml version="1.0" encoding="UTF­8"?>
<occi:extension xmlns:occi="http://schemas.ogf.org/occi" xmlns:xs="
http://www.w3.org/2001/XMLSchema" xmlns:xsi="
http://www.w3.org/2001/XMLSchema­instance"
xsi:schemaLocation="http://erocci.ow2.org/occi occi.xsd "
name="Admin Resources for erocci" status="experimental"
version="1">
<occi:kind scheme="http://erocci.ow2.org/occi/admin#"
term="system" title="System Informations">
<occi:parent scheme="http://schemas.ogf.org/occi/core#"
term="resource" />
<occi:attribute name="erocci.admin.sysname" type="xs:string"
title="System Name" immutable="true" />
<occi:attribute name="erocci.admin.sysdescr" type="xs:string"
title="System Description" immutable="true" />
<occi:attribute name="erocci.admin.syscontact" type="xs:string"
title="System Contact" immutable="true" />
<occi:attribute name="erocci.admin.uptime" type="xs:integer"
title="System Uptime" immutable="true" />
</occi:kind>
</occi:extension>
summary : string (0..1)
ressource link
target
sourcelinks
erocci.admin.sysname: string (0..1)
erocci.admin.sysdescr : string (0..1)
erocci.admin.syscontact : string (0..1)
erocci.admin.uptime : string (0..1
admin

12. Any questions ?
Thanks for your attention !
Contact :
http://www.occiware.org ­ marc.dutoo at openwide.fr
Partners
Sponsors
DGE (PIA) & System@tic, SCS, Images & Réseaux, PICOM, Minalogic clusters