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Devops and Immutable infrastructure - Cloud Expo 2015 NYC
The document presents a talk by John Willis on the concept of immutable infrastructure, detailing its importance and methods for implementation, particularly through the use of Docker. It emphasizes the significance of order in deployment processes and discusses various models such as golden images and server provisioning. Additionally, it highlights the growing Docker community and its widespread adoption in enterprises.
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Devops and Immutable infrastructure - Cloud Expo 2015 NYC
- 1. @bglpe Devops and Immutable Infrastructure JohnWills! Technical Evangelist
- 2. @bglpe @botchagalupe • a.k.a. JohnWillis • 35 Years in IT Operations • Exxon, Canonical, Chef, Enstratius, Socketplane • Devopsdays Core Organizer • Devopscafe on iTunes • Tweet to @bglpe for Questions
- 3. @bglpe Agenda • What isImmutable Infrastructure? • Why Immutable (Order Matters) • Models and Methods • Docker and Immutable Infrastructure • Case Studies
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- 6. @bglpe “The least-cost wayto ensure that the behavior of any two hosts will remain completely identical is always to implement the same changes in the same order on both hosts.” Order Matters
- 7. @bglpe Management Methods • Divergence •Convergence • Congruence
- 8. @bglpe Why (When) DoesOrder Matter? • Circular Dependancies • Right Command Wrong Order • Right Package Wrong Order
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- 10. @bglpe Immutable Infrastructure “Model” • NoCRUD allowed for… • Packages • Configuration Files • Application Software • Data (RUD)
- 11. @bglpe How To DoImmutable? • Provision a new server. • Test the new server. • Change the reference to the new server. • Keep the old server around for rollback.
- 12. @bglpe The Immutable “Trombone” •Golden Images • Virtual Desktop Infrastructure (VDI) • Virtual Images • Phoenix Servers vs Snowflake Servers • Infrastructure as Code • Bake vs Fry • Containers
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- 14. @bglpe Why Docker? • Isolation •Lightweight • Simplicity • Workflow • Community
- 15. @bglpe Docker Community • 1200Docker Contributors • 100,000 Dockerized Applications • 3 to 4 Million Developers using Docker • 300 Million Downloads • 32,000 Docker Related Projects • 70% of enterprises are using Docker
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- 18. @bglpe References Docker and theThree Ways of Devops! https://blog.docker.com/2015/05/docker-three-ways-ops/! ! Trash Your Servers and Burn Your Code: Immutable Infrastructure and Disposable Components! Chad Fowler June 2013! http://chadfowler.com/blog/2013/06/23/immutable-deployments/! ! PhoenixServer! Martin Fowler July 2012! http://martinfowler.com/bliki/PhoenixServer.html! ! Building with Legos! http://techblog.netflix.com/2011/08/building-with-legos.html! ! Immutable Infrastructure with Docker and EC2": Gilt at Dockercon (Video)! http://tech.gilt.com/post/90578399884/immutable-infrastructure-with-docker-and-ec2! ! Why you should build an Immutable Infrastructure! by Florian Motlik - 2014-07-22! https://blog.codeship.com/immutable-infrastructure/! ! Baked Servers vs Fried Servers! http://if.andonlyif.net/blog/2012/10/baked-servers-vs-fried-servers.html! ! Why Order Matters: Turing Equivalence in Automated Systems Administration! https://www.usenix.org/legacy/publications/library/proceedings/lisa02/tech/full_papers/traugott/traugott_html/index.html! ! An Analysis of RPM Validation Drift! https://www.usenix.org/legacy/events/lisa2002/tech/full_papers/hart/hart.pdf!
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