Devops Devops Devops, at Froscon

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Devops, Devops , Devops, from Dev and Ops to Devops presented at Froscon in Sankt-Augusting (Germany) on August 21st 2011

Transcript of Devops Devops Devops, at Froscon

  • 1.Devops, Devops,DevopsKris Buytaert

2. Kris Buytaert I used to be a Dev, Then Became an Op Senior Linux and Open Source [email protected] Infrastructure Architect Building Clouds since 2004th Surviving the 10 floor test Co-Author Virtualization with Xen Guest Editor at Virtualization.com But mostly, a DevOp 3. Alternative Titles Grumpy old Sysadmin Devops, Devops, Devopsth Surviving the 10 floor test Agile Administration Devministration, your new Job Title 4. Devop, definition 30 something Senior Infrastructure guy Development background Open Source Expcerience Mostly European (.be / .uk) Likes Belgian Beer Likes Sushi 5. Whats this Devops thing really about ? 6. World , 200X-2009Patrick Debois, Gildas Le Nadan, Andrew Clay Shafer, Kris Buytaert, JezzHumble, Lindsay Holmwood, John Willis, Chris Read, Julian Simpson, andlots of others ..Gent , October 2009Mountain View , June 2010 Hamburg , October 2010 Boston, March 2011Mountain View, June 2011 Bangalore, Melbourne, Goteborg 7. Devops is a growing movement We dont have all the answers yet We are reaching out to different communities We will point out problems we see.. Only the name is new While we are still working out the solutions 8. CAMS Culture Automation Measurement SharingDamon Edwards and John Willis 9. Whats the problem ?The community of developers whose work yousee on the Web, who probably dont know whatADO or UML or JPA even stand for, deploy bettersystems at less cost in less time at lower riskthan we see in the Enterprise. This is true evenwhen you factor in the greater flexibility andvelocity of startups.Tim Bray , on his blog January 2010 10. How did we get here ? 11. The Old Days Put this Code Live, heres a tarball NOW! What dependencies ? No machines available ? What database ? Security ? High Availability ? Scalability ? My computer cant install this ? 12. Devs vs Ops 13. 10 days into operation What High Load ? What Memory usage ? Are these Logs ? Or this is actualy customerdata ? How many users are there , should they launch100 queries each ?? Oh were having 10Kusers Why is debugging enabled ? Who wrote this ? 14. 11 days into operations 15. We can solve this ! Some people thinkthe Ops work startson deployment Ops = both system,app as platform ! It starts much earlier Get Devs and Ops totalk asap 16. Talk about Nonfunctional Reqs NOW! Security Backups High Availability Upgradability Deployment Monitoring Scale 17. Breaking the SilosDevsOps Getting Along 18. NirvanaAn ecosystem that supports continuous delivery, frominfrastructure, data and configuration management tobusiness.Through automation of the build, deployment, and testingprocess, and improved collaboration between developers,testers, and operations, delivery teams can get changesreleased in a matter of hours sometimes even minutesnomatter what the size of a project or the complexity of its codebase.Continuous Delivery , Jez Humble 19. How many times a day ? 10 @ Flickr Deployments used to be pain Nobody dared to deploy a site Practice makes perfect Knowing you can vs constantly doing it 20. " Our job as engineers (and ops, dev-ops, QA,support, everyone in the company actually) is toenable the business goals. We strongly feel thatin order to do that you must have the ability todeploy code quickly and safely. Even if thebusiness goals are to deploy strongly QAd codeonce a month at 3am (its not for us, we push allthe time), having a reliable and easydeployment should be non-negotiable."Etsy Blog upon releasing Deployinatorhttp://codeascraft.etsy.com/2010/05/20/quantum-of-deployment/ 21. How do we get there ? 22. CI Tools Hudson Jenkins A zillion plugins Make your builds reproducible ! 23. Todays EnviromentsFor Devs For Ops Version Control Version Control Automated Build Automated Build Bugtracking Bugtracking Continous integration Continous integration Integrated testing Integrated testing Automated Automateddeploymentdeployment 24. Devministration ? For Both Devs and Ops Yes we write code also Httpd.conf, squid.conf, my.cnf Just crappy languages :) Shell, perl, ruby, python, puppet Everyone is a developer these days Automate your infrastructure ! So those rules apply for Ops Too ! 25. Going Live 26. Deploying Automated Deployments If my computer cant install it , the installer isborken Reproducable Think: Kickstart, FAI, Preseeding, SystemImagerSuite 27. Deploying an app Code vs Config Think: Capistrano, Controltier, Fabric Pulling stuff from version control Is your repo accessible from production ? Lots of ops people like stuf packaged .rpm, .deb, not .tgz , not .war 28. Why ops like to package Packages give you features Consistency, security, dependencies Uniquely identify where files come from Package or cfg-mgmt Source repo not always available Firewall / Cloud etc .. Weird deployment locations , no easy access Little overhead when you automate CONFIG does not belong in a package 29. Jordan Sissel is a Hero !Use FPM 30. Looking for ?As a system administrator, I can tell when softwarevendors hate me. It shows in their products.DONT make the administrative interface a GUI. Systemadministrators need a command-line tool for constructingrepeatable processes. Procedures are best documented byproviding commands that we can copy and paste from theprocedure document to the command line. We cannotachieve the same repeatability when the instructions are:"Checkmark the 3rd and 5th options, but not the 2ndoption, then click OK." Sysadmins do not want a GUI thatrequires 25 clicks for each new user.Thomas A. Limoncelli in ACM Queue December 2010 http://queue.acm.org/detail.cfm?id=1921361 31. Configuration Mgmt Configure 1000 nodes, Modify 2000 files, Together Think : Cfengine,Puppet, Chef Put configs under version control 32. Deployment isnt the End 33. Orchestration Manage 1000 nodes, Trigger Upgrades Config Runs Service Changes Think : Mcollective Noah Rundeck 34. High Availabilty 35. Scalability 36. Monitor 37. But Monitoring Stinks ! #monitoringsucks trending https://github.com/monitoringsucks/ 2007 Study :Nagios + Friends 2011 Conclusion : Nagios/Icinga are the onlyautomatable alternatives Monitoring at Scale : new kids Graphite,flapjack, etc What about Logging ? : Logstash, Graylog2 38. Its not about the toolsIts about change Its about the people 39. The full monty Behaviour and functional testing to testupgrades and new developments Automated Testing based on ContinuousIntegration Automated Test Deployments Automated Production Deployments Feedback Loops Measurement ! Controlled Continuous Deployment 40. Surviving the test ! After 5+ years of preaching I`m not alone anymore Devops, a new Movement ! Join the movement ! Devopsdays.org Agile System Adminstration GoogleGroups 41. Devop, definition There is no definition It certainly isnt a person No strict rules No strict tools Its not even new If you arent doing it already ...... you are doing it wrong 42. Survey for Drupal http://bit.ly/drupaldevops 43. ContactKris [email protected] [email protected]://www.krisbuytaert.be/blog/http://www.inuits.be/ InuitsEsquimaux t Hemeltje Kheops Business Gemeentepark 2Center 2930 Brasschaat Avenque Georges 891.514.231 Lematre 54 6041 Gosselies +32 473 441 636 889.780.406 +32 495 698 668 44. Images:http://www.flickr.com/photos/huffstutterrobertl/4135257384/http://www.flickr.com/photos/brighton/2153602543/http://www.flickr.com/photos/gchorus/2074271352/http://www.flickr.com/photos/[email protected]/2951673691/sizes/l/http://www.flickr.com/photos/[email protected]/2953698548/http://www.flickr.com/photos/jamescridland/613445810/http://www.flickr.com/photos/johnmcga/4468003947/