Ensemble oscon 2011

Ensemble – Welcome to Service Orchestration
OSCON 2011
Clint Byrum < [email_address] >
SpamapS on IRC
http://ensemble.ubuntu.com/

DevOps Distilled ™ - Isn't that config management?
Config Management
Machine Centric
De-coupled from provisioning
Knowledge Sharing Involves Customization and assumptions.
Analog: ./configure && make && sudo make install
Service Orchestration
Service Centric
Coupled with provisioning
Designed for Knowledge Sharing
Complimentary to config management
Analog: apt-get install

The Cloud http://www.flickr.com/photos/gsbrown99/2706179635/sizes/o/in/photostream/ http://www.flickr.com/photos/kaptainkobold/5892507537/sizes/z/in/photostream/ http://www.flickr.com/photos/stevendepolo/4226949238/sizes/l/in/photostream/ http://www.flickr.com/photos/emsl/4929154481/sizes/l/in/photostream/

Open Source http://www.flickr.com/photos/smiteme/1184482747/sizes/o/in/photostream/

Open Source + The Cloud = Ensemble!
Yes this is the plug
Some things are better served by NOT being in Ubuntu's archive.
Ensemble in many ways makes Ubuntu Server invisible when using it properly.

Formulas are simple
Some yaml metadata
A few scripts that run at the right time
Well encapsulated
Written with whatever tool you want!
Assumptions can be eliminated
Easy to read, easy to review
https://code.launchpad.net/principia
ensemble : formula name : mediawiki revision : 84 summary : "website engine for collaborative work" description : | MediaWiki is a wiki engine (a program for creating a collaboratively edited website). It is designed to handle heavy websites containing library-like document collections, and supports user uploads of images/sounds, multilingual content, TOC autogeneration, ISBN links, etc. requires : db : interface : mysql slave : interface : mysql cache : interface : memcache provides : website : interface : http

Relationships
Various strategies
- Assumptions in code
- Assumptions in config mgmt.
- Puppet – Exported Configs
- Chef – Search
- Ensemble – Fundamental component
http://upload.wikimedia.org/wikipedia/commons/d/d8/Wikimedia-servers-2010-12-28.svg

Example: Mediawiki
ensemble deploy mysql wiki-db
ensemble deploy mediawiki demo-wiki
ensemble deploy memcached wiki-cache
ensemble deploy haproxy wiki-balancer
ensemble add-unit wiki-cache
ensemble add-unit demo-wiki
ensemble add-relation wiki-db:db demo-wiki:db
ensemble add-relation wiki-cache demo-wiki
ensemble add-relation wiki-balancer:reverseproxy demo-wiki:website

Add slaves
ensemble deploy mysql wiki-slave-db
ensemble add-relation wiki-slave-db:slave wiki-db:master
ensemble add-relation demo-wiki:slave-db wiki-slave-db:db

Result

Configure
ensemble set demo-wiki name=”Life, The Universe, and Everything”
ensemble deploy mediawiki –config=arthur-dents-wiki.yaml arthur-dents-wiki
http://www.flickr.com/photos/monado/2151215772/sizes/o/in/photostream/

Formulas today HAProxy MySQL Jenkins

The Future
Repository
Local development
Ubuntu Orchestra for ”Bare Metal”
Stacks
Storage Management
Formulas, Formulas, Formulas, Formulas...
http://www.flickr.com/photos/tom_twinhelix/3916931452/sizes/l/in/photostream/

THANK YOU
https://ensemble.ubuntu.com/
https://cloud.ubuntu.com/
https://launchpad.net/ensemble
#ubuntu-ensemble on Freenode
Clint Byrum <clint.byrum@canonical.com>

Ensemble oscon 2011

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