1. Sonian, Open Source and Sensu
November 12, 2012

2. Sonian’s Contributions
 Fog - https://github.com/fog
 Elasticsearch - https://github.com/elasticsearch
 Openstack Swift - https://github.com/openstack/swift
 Opscode Chef – https://github.com/opscode/chef/
 Various Chef Tools:
 https://github.com/portertech/chef-metrics
 https://github.com/portertech/chef-journalist
 https://github.com/portertech/recognizer
 https://github.com/portertech/chef-irc-snitch

3. Home Built and Released
 SCLI (Smart Cloud Command Line interface)
 https://github.com/sonian/scli (MIT)
 Amazon-Pricing (Pricing Gem)
 https://github.com/sonian/amazon-pricing (Ruby)
 ElasticSearch Jetty Plugin
 https://github.com/sonian/elasticsearch-jetty (Apache 2)
 Sensu – Monitoring Framework
 https://github.com/sensu (MIT)

4. Sensu – “The Monitoring Router”
Framework – Built for the cloud (Dynamic
 Monitoring
Environments)
 Ruby (EventMachine, Sinatra, AMQP), RabbitMQ, Redis
 Messaging oriented architecture. Messages are JSON
objects. (Pub/Sub)
 Ability to re-use existing Nagios plugins
 Plugins and handlers (think notifications) can be written in
any language
 Designed with modern configuration management systems
such as Chef or Puppet in mind
 Lightweight, less than 1200 lines of code

5. Why We Built It
 Highly Elastic Infrastructure
 Nodes are created (Spot Nodes)
 Bootstrapped (With Chef)
 Take and process work
 Terminated (when prices increase)
 All before they are discovered and monitored by Nagios
 Nagios is:
 Difficult to Extend
 Can not discover new services on its own
 Generally Unpleasant

6. Keep It Simple™
• The Idea:
• Schedule the execution of
remote checks
• Collect their Results
• “Checks” are:
• Is the server up?
• How hard is it working?
• Tied into Modern CM
• Chef
• Puppet
• Message Oriented Middleware
• RabbitMQ
• Securely Routing
Checks/Results
• Redis: Fast In-Mem K/V Store

7. Open Source == Community
• Early Development – Recruit Community Experts
• Help Test – Drive Early Roadmap
• Develop Puppet and Chef modules
• Release Day (Nov 1st 2011)
• Make Sensu Github Repo Public
• Open IRC channel on Freenode (#sensu)
• Blog posting and Twitter for marketing
• Community, Community, Community
• Adoption – Documentation
• “Omnibus” Style Packaging for Quick Deployments

9. Contact
 Pete Cheslock
 Director of Technical & Cloud Operations @ Sonian
 @petecheslock
 http://about.me/petecheslock
 We’re Hiring!