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Gotta Have It!
PROS
Increase velocity of change/responsiveness Get Operations out of the loop Buzzword compliance – aka Shiny!!!
CI
Jenkins ( maiden name is Hudson ) Checks out a deploy branch from git Runs a few sanity checks Packages software Uploads to software repo Tags build in git
Right Tool Packages
Something that does not change often Don't need to roll back quickly Don't need more than 1 version at a time You cache external repos or limit to just yours
Right Tool Gems
Fast roll back – gem cache Easy setup of gem server Need more than 1 version at a time Bundler for dependencies Bundle exec for peace of mind
Configuration Management
Puppet everything from bare metal/base image Seperate data from manifests with an ENC Max troubleshooting time is 20 minutes Amazon free ”chaos monkey” service
ENC – Use Groups!
http://docs.puppetlabs.com/guides/installing_dashboard.html
Puppet - Tips
Execs hurt – try to avoid them Recursive directories – use vcsrepo instead Write your own types – just restart in between Run mongrel or passenger Use behind a load balancer for fun Use reporting, but take the DB off of your
master Write your own facts and save lots of time
Mcollective – Do It NOW!!
Orchestration framework Crazy Parallel Write more ruby code... Clients and Agents
Mcollective - Tips
Remeber you have a machine gun pointed at your foot
Wrap command in IO.popen and log everything Log to syslog Use ApacheMQ For EC2 tune your keep alives (registerinterval) Remember you have a machine gun pointed at
your foot
Sinatra
Web app in 5 minutes Much more minimal than rails Written in Ruby so I can interface with
Mcollective easily
http://www.sinatrarb.com/
Sinatra – Addons
sinatra-respond_to - useful as API Pony – send email from Sinatra Twitter Bootstrap – make things pretty
Public Example
https://github.com/maguec/mco_dashboard_example
Sinatra - Tips
Run a few behind Nginx Use helpers whenever possible Log every push Use it to integrate all your data
Dashboard Functionality Push software Audit software Real-time monitoring check Performance data integration Log data integration Troubleshooting tools for developers Utilities for non-technical staff Open trouble tickets Cost information (in progress) Userful links to other data sources
Thanks
Michael Catlin (organizer) Tarun Desikan (giving me free reign/enough rope) R.I. Pienaar ( Mcollective author and helpful guy) Andrew Farmer ( for helping to get this going )
Links
http://blog.moovweb.com/ http://www.devco.net/ http://www.puppetlabs.com/ http://blog.mague.com/ http://www.sinatrarb.com/ http://jenkins-ci.org/
IRC #puppet,#mcollective,#devops
Author
Chris Mague
IRC: bosszaru usually on #gaijin
Twitter: @maguec