Devops, the future is here, it's just not evenly distributed yet.
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This document discusses the DevOps movement and how operations and development teams can work more collaboratively. Some key points: - DevOps aims to break down barriers between development and operations teams through better communication and automation. - In the past, developers would deploy code without considering operational requirements, leading to problems once code was in production. DevOps promotes developing and deploying code as a team effort between devs and ops. - Automating processes like configuration management, continuous integration, deployment and monitoring helps align dev and ops goals and allows more frequent, lower-risk deployments. Tools like Puppet, Chef, Jenkins and Nagios are mentioned. - The document advocates for practices like test-driven
Devops, the future is here, it's just not evenly distributed yet.
- 1. Devops, the future is here Kris Buytaert Lisa 2011, Boston
- 2. Kris Buytaert ● I used to be a Dev, ● Then Became an Op ● Chief Trolling Officer and Open Source Consultant @inuits.eu ● Everything is an effing DNS Problem ● Building Clouds since 2004 ● Co-Author Virtualization with Xen ● Guest Editor at Virtualization.com ● But mostly, trying to be good at my job
- 3. Alternative Titles ● Grumpy old Sysadmin ● Devops, Devops, Devops th ● 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. What's this Devops thing really about ?
- 6. World , 200X-2009 Patrick Debois, Gildas Le Nadan, Andrew Clay Shafer, Kris Buytaert, Jezz Humble, Lindsay Holmwood, John Willis, Chris Read, Julian Simpson, and lots of others .. Gent , October 2009 Mountain View , June 2010 Hamburg , October 2010 Boston, March 2011 Mountain View, June 2011 Bangalore, Melbourne, Goteborg , October 2011
- 7. ● Devops is a growing movement ● We don't 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. What's the problem ? The community of developers whose work you see on the Web, who probably don’t know what ADO or UML or JPA even stand for, deploy better systems at less cost in less time at lower risk than we see in the Enterprise. This is true even when you factor in the greater flexibility and velocity of startups. Tim Bray , on his blog January 2010
- 9. ● Adopt the new philosophy. We are in a new economic age. Western management must awaken to the challenge, must learn their responsibilities, and take on leadership for change. ● Cease dependence on inspection to achieve quality. Eliminate the need for massive inspection by building quality into the product in the first place. ● Improve constantly and forever the system of production and service, to improve quality and productivity, and thus constantly decrease costs. ● Institute training on the job. ● Institute leadership The aim of supervision should be to help people and machines and gadgets do a better job. ● Drive out fear, so that everyone may work effectively for the company. ● Break down barriers between departments. People in research, design, sales, and production must work as a team, in order to foresee problems of production and usage that may be encountered with the product or service. ● Eliminate slogans, exhortations, and targets for the work force asking for zero defects and new levels of productivity. Such exhortations only create adversarial relationships, as the bulk of the causes of low quality and low productivity belong to the system and thus lie beyond the power of the work force. • Eliminate management by objective. Eliminate management by numbers and numerical goals. Instead substitute with leadership. • Remove barriers that rob the hourly worker of his right to pride of workmanship. The responsibility of supervisors must be changed from sheer numbers to quality. • Remove barriers that rob people in management and in engineering of their right to pride of workmanship. ● Institute a vigorous program of education and self-improvement. ● Put everybody in the company to work to accomplish the transformation. The transformation is everybody's job.
- 10. William Edwards Deming 1986, Out of the Crisis. http://en.wikipedia.org/wiki/W._Edwards_Deming
- 11. CAMS ● Culture ● Automation ● Measurement ● Sharing Damon Edwards and John Willis
- 12. How did we get here ?
- 13. The Old Days ● “Put this Code Live, here's a tarball” NOW! ● What dependencies ? ● No machines available ? ● What database ? ● Security ? ● High Availability ? ● Scalability ? ● My computer can't install this ?
- 14. Devs vs Ops
- 15. People hate Sysadmins Because • They slow stuff down • The say no • They say no again • They refuse to break stuff • They care about uptime • They don't care about fancy new features
- 17. 10 days into operation ● What High Load ? What Memory usage ? ● Are these Logs ? Or this is actualy customer data ? ● How many users are there , should they launch 100 queries each ?? Oh we're having 10K users ● Why is debugging enabled ? ● Who wrote this ?
- 18. 11 days into operations
- 19. We can solve this ! ● We are not here to block ● Some people think the Ops work starts on deployment • Ops = both system, app as platform ! ● It starts much earlier ● Get Devs and Ops to talk asap
- 20. Talk about Non functional Reqs NOW! ● Security ● Backups ● High Availability ● Upgradability ● Deployment ● Monitoring ● Scale
- 21. Breaking the Silos Devs Ops Getting Along
- 22. Nirvana An “ecosystem” that supports continuous delivery, from infrastructure, data and configuration management to business. Through automation of the build, deployment, and testing process, and improved collaboration between developers, testers, and operations, delivery teams can get changes released in a matter of hours — sometimes even minutes–no matter what the size of a project or the complexity of its code base. Continuous Delivery , Jez Humble
- 23. 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
- 24. " Our job as engineers (and ops, dev-ops, QA, support, everyone in the company actually) is to enable the business goals. We strongly feel that in order to do that you must have the ability to deploy code quickly and safely. Even if the business goals are to deploy strongly QA’d code once a month at 3am (it’s not for us, we push all the time), having a reliable and easy deployment should be non-negotiable." Etsy Blog upon releasing Deployinator http://codeascraft.etsy.com/2010/05/20/quantum-of-deployment/
- 25. How do we get there ?
- 26. Use Version Control No Excuses Also for scripts/config/cookbooks,manifests,etc
- 28. CI Tools ● Hudson ● Jenkins • A zillion plugins ● Make your builds reproducible ! ● Test your (Puppet/Chef/CFengine)
- 31. Todays Enviroments For Devs For Ops ● Scrum ● Kanban ● Version Control ● Version Control ● Automated Build ● Automated Build ● Bugtracking ● Bugtracking ● Continous integration ● Continous integration ● Integrated testing ● Integrated testing ● Automated ● Automated deployment deployment
- 32. 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 !
- 34. Deploying ● Automated Deployments ● “If my computer can't install it , the installer is borken” Luke at Fosdem (200X) ● Reproducable ● Think: • Kickstart, FAI, Preseeding, SystemImager Suite
- 35. 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
- 36. 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
- 37. Jordan Sissel is a Hero ! Use FPM
- 38. Looking for ? “As a system administrator, I can tell when software vendors hate me. It shows in their products.” “DON'T make the administrative interface a GUI. System administrators need a command-line tool for constructing repeatable processes. Procedures are best documented by providing commands that we can copy and paste from the procedure document to the command line. We cannot achieve the same repeatability when the instructions are: "Checkmark the 3rd and 5th options, but not the 2nd option, then click OK." Sysadmins do not want a GUI that requires 25 clicks for each new user.” Thomas A. Limoncelli in ACM Queue December 2010 http://queue.acm.org/detail.cfm?id=1921361
- 39. Configuration Mgmt ● Configure 1000 nodes, ● Modify 2000 files, ● Together ● Think : • Cfengine,Puppet, Chef ● Put configs under version control ● Please don't roll your own ...
- 40. Deployment isn't the End
- 41. Orchestration ● Manage 1000 nodes, ● Trigger • Upgrades • Config Runs •Service Changes ● Think : • Mcollective • Noah • Rundeck
- 42. High Availabilty
- 43. Scalability
- 44. Monitor
- 45. But Monitoring Stinks ! ● #monitoringsucks trending ● https://github.com/monitoringsucks/ ● 2007 Study :Nagios + Friends ● 2011 Conclusion : Nagios/Icinga are the only automatable alternatives ● Monitoring and trending at Scale , new kids Graphite, flapjack, etc ● What about Logging ? : Logstash, Graylog2
- 47. It's not about the tools It's about change It's about the people
- 48. The full monty ● Behaviour and functional testing to test upgrades and new developments ● Automated Testing based on Continuous Integration ● Automated Test Deployments ● Automated Production Deployments ● Feedback Loops ● Measurement ! ● Controlled Continuous Deployment
- 49. Surviving the test ! ● After 7+ years of preaching I`m not alone anymore ● Devops, a new Movement ! ● Join the movement ! • Devopsdays.org • Agile System Adminstration GoogleGroups
- 50. Devop, definition ● There is no definition ● It certainly isn't a person ● No strict rules ● No strict tools ● It's not even new ● If you aren't doing it already ... ... you are doing it wrong
- 51. And now, it's distributed
- 52. Contact Kris Buytaert [email protected] Further Reading @krisbuytaert http://www.krisbuytaert.be/blog/ http://www.inuits.be/ Inuits 't Hemeltje Duboistraat 50 2060 Antwerpen Belgium 891.514.231 +32 475 961221