Interop Clouds with OCCI

Thijs Metsch - Platform Computing, an IBM CompanyAndrew Edmonds - Intel Corporation

Cloud Plugfest – February/March 2012, Düsseldorf Germany

Starring

In Order of apprerancesOCCI As the cool kid in town

OpenStack As the „Cloud“ISF As the Platform Cloud

Andy Edmonds As the DeveloperThijs Metsch As the Integrator

THE OCCI SOFTWARE PACKAGE

The OCCI library

OCCIModel*

Backend

Backend

Backend

Backend

…

HTTP text/uri-list Rendering

HTTP text/plain Rendering

HTTP text/html Rendering

HTTP Header Rendering

HTTPHandling

A Look

inside of

pyssf

* http://www.occi-wg.org

Your App

HTTP app/json Rendering

WSG

I App

The WSGI Application can be embedded in

many Python environments &

frameworks

http://pyssf.sf.net

The OCCI library

OCCIModel*

Backend

Backend

Backend

Backend

…

HTTP text/uri-list Rendering

HTTP text/plain Rendering

HTTP text/html Rendering

HTTP Header Rendering

HTTPHandling

A Look

inside of

pyssf

* http://www.occi-wg.org

Your App

HTTP app/json Rendering

WSG

I App

Handles the HTTP stuff (POST,PUT,DELETE,GET) & and REST semantics

(REST, Security, etc.)

http://pyssf.sf.net

The OCCI library

OCCIModel*

Backend

Backend

Backend

Backend

…

HTTP text/uri-list Rendering

HTTP text/plain Rendering

HTTP text/html Rendering

HTTP Header Rendering

HTTPHandling

A Look

inside of

pyssf

* http://www.occi-wg.org

Your App

HTTP app/json Rendering

WSG

I App

Map the HTTP Data to the OCCI Model

(Automatic)

The OCCI library

OCCIModel*

Backend

Backend

Backend

Backend

…

HTTP text/uri-list Rendering

HTTP text/plain Rendering

HTTP text/html Rendering

HTTP Header Rendering

HTTPHandling

A Look

inside of

pyssf

* http://www.occi-wg.org

Your App

HTTP app/json Rendering

WSG

I App

Backends define categories they can handle – this all you need to implement

(Automatic selection)

http://pyssf.sf.net

The software package is flexible

• OCCI‘s IaaS extension is provided within but with own extensions you can:– Use it for you IaaS based cloud

• From „Dummy Cloud“ to OpenStack OCCI services

– A Platformish approach• As a proxy for another web services – Platform ISF

– Job submission• See OCCI DRMAA proposal Specification

– Key Value storage• Described in a Springer book:

OCCI‘s default renderingtext/plain*

> GET /-/ HTTP/1.1> User-Agent: curl/7.24.0 (i386-pc-solaris2.10) libcurl/7.24.0

OpenSSL/0.9.7d zlib/1.1.4> Host: fjjutraa.joyent.us:8888> Accept: text/plain>< HTTP/1.1 200 OK< Content-Length: 4323< Etag: "7b77faa1ad14fd15fc44090e6f245de9f096ccb9"< Content-Type: text/plain< Server: pyssf OCCI/1.1<

Category: network; scheme="http://schemas.ogf.org/occi/infrastructure#";

[...]

* Might be renamed to text/occi+plain

OCCI‘s lightweight renderingtext/occi

> GET /-/ HTTP/1.1> User-Agent: curl/7.24.0 (i386-pc-solaris2.10) libcurl/7.24.0

OpenSSL/0.9.7d zlib/1.1.4> Host: fjjutraa.joyent.us:8888> Accept: text/occi>< HTTP/1.1 200 OK< Category: network;

scheme="http://schemas.ogf.org/occi/infrastructure#";< [...]OK

OCCI‘s uri-list renderingtext/uri-list

> GET / HTTP/1.1> User-Agent: curl/7.24.0 (i386-pc-solaris2.10) libcurl/7.24.0

OpenSSL/0.9.7d zlib/1.1.4> Host: fjjutraa.joyent.us:8888> Accept: text/uri-list>< HTTP/1.1 200 OK< Content-Length: 84< Etag: "b76b8c36b40cfbfbeac66779ceb8334aadeb5462"< Content-Type: text/uri-list< Server: pyssf OCCI/1.1<# uri:/http://fjjutraa.joyent.us:8888/compute/09ce8c50-ada0-4f71-bfc8-

afce2324c6e5[...]

OCCI‘s upcoming JSON rendering application/occi+json

> GET /-/ HTTP/1.1> User-Agent: curl/7.24.0 (i386-pc-solaris2.10) libcurl/7.24.0

OpenSSL/0.9.7d zlib/1.1.4> Host: 10.0.2.2:8888> Accept: application/occi+json>< HTTP/1.0 200 OK< Content-length: 5567< Content-Type: application/occi+json< Server: pyssf OCCI/1.1<[ { "scheme": "http://schemas.ogf.org/occi/infrastructure/ [...] "term": "online", "title": "Bring storage online" }, [...]

A HTML renderingtext/html*

* Fully customizable with CSS

pyssf is OCCI compliant

OCCI & OPENSTACK

OCCI & OpenStack Features

• Status– General support for VM management is available– First set of tests available– Aligned with the coding Standards of OpenStack!– OCCI Compliant – thanks pyssf!

• Features– Deployment and Management of VMs & Volumes– Scale up (Resize), Rebuild, Imaging of VMs– Integrated as a nova-wsgi WSGI service

OS OCCI Parity*

• Summary:– Servers (5/5)– Server Addresses (1/2)– Flavors (1/2)– Images (1/2)– Metadata (0/6)

• Further details here: http://bit.ly/os-occi

* Does not include OS API Extensions

Install & Play• 1: Install pyssf

– From code repository at pyssf.sf.net– pip/easy_install install pyssf

• Option 1 - Easiest way will be using devstack– Configure stackrc to clone nova code from:

git://git@github.com/dizz/nova

• Option 2 - Get the Code (Optional) & Do It Yourself:– cd $YOUR_NOVA_INSTALL_LOCATION– git add remote occi-upstream git://git@github.com/dizz/nova

– git fetch occi-upstream– git merge occi-upstream/master

OCCI & OpenStack Security• OpenStack defines 3 HTTP Headers

– X-Auth-Token– X-Auth-Tenant-ID– X-Auth-User

Keystone

Nova/OCCI

POST '{"auth":{"passwordCredentials":{"username": "admin", "password": "admin"}}}'

Token: 123-123-123

Token: 123-123-123

OpenStack & OCCI Architecture

nova

EC2

osapi

OCCI

Image service

1. Register WSGI app2. Register back-ends3. Register OS templates (per user)4. Register Resource templates

(m1.tiny...)5. Register Extensions

Quantum

A Sea of Physical & Virtual Servers

„Paper“ Demo

• Get a Security Token

• Query the OCCI Service:

$ curl -d '{"auth":{"passwordCredentials":{"username": “Admin", "password": “<password>"}}}' -H "Content-type: application/json" http://127.0.0.1:35357/v2.0/tokens

$ export KID=$TOKEN_VALUE

$ curl -v -H 'X-Auth-Token: '$KID -H 'X-Auth-Tenant-Id: '$TEN_ID

-H 'X-Auth-User: '$OS_USER -X GET localhost:8787/-/

An OCCI & OpenStack Samplecurl -v -X POST localhost:8787/compute/ -H 'Content-Type: text/occi' -H 'X-Auth-Token: '$KID -H 'X-Auth-Tenant-ID: ’$TEN_ID-H 'X-Auth-User: ’$USER

-H 'Category: compute; scheme="http://schemas.ogf.org/occi/infrastructure#"; class="kind"’

-H 'Category: m1.tiny; scheme="http://schemas.openstack.org/template/resource#"; class="mixin"'

-H 'Category: cirros-0.3.0-x86_64-blank; scheme="http://schemas.openstack.org/template/os#"; class="mixin"‘

That’s all!

Live Demo Overview

• Faisal needs a VM to process data– He Creates a VM

• Realises it’s not powerful enough

–Resizes it• Begins to crunch his data• His boss finds out: “You’re using the Cloud?

OMFG!”– Faisal quickly Tears Down his resources

Developing with Open/Dev-Stack• Experiences – „WAT!?“

– Devstack can be helpful– BUT: Sometimes not!– Set Root password!

• Unittesting– Writing Unittests for our OCCI-api was straight

forward

• Changing APIs– Especially integration with Keystone was „fun“

OCCI-OpenStack Roadmap

• Submit to OpenStack review process

• Add features:1. Documentation2. OCCI registry backend - OS Nova DB3. OCCI on OS to parity4. CDMI volume management e.g. rOCCI5. Quantum

• Use it as a proving ground of OCCI awesome sauce!

OUTLOOK

Conclusions

• OCCI offers flexibility while being a Standard– Thanks to the Model and our renderings– Discoverability

• Can be used for way more than just IaaS– Examples: FiWare and ISF extensions– Other use cases

• CDMI & swift– New Blueprint with updated details– Expose nova-volume via CDMI

Closing remarks

• This work was partly funded by the projects:

http://dgsi.d-grid.de http://fi-ware.eu