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Unikernels Aren’t Dead, They’re Just Not Containers

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Video and slides synchronized, mp3 and slide download available at URL http://bit.ly/2VMXWkC.

Per Buer looks in depth at one of the IncludeOS applications they have built, how they built it and how it has worked out in production. Filmed at qconlondon.com.

Per Buer is CEO of IncludeOS. He founded Varnish Software ten years ago and he has spent his life working on infrastructure-related software that has been tied to performance in some way or another.

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Unikernels Aren’t Dead, They’re Just Not Containers

  1. 1. Why don’t our computers have a separate control plane?
  2. 2. InfoQ.com: News & Community Site Watch the video with slide synchronization on InfoQ.com! https://www.infoq.com/presentations/ unikernels-includeos • Over 1,000,000 software developers, architects and CTOs read the site world- wide every month • 250,000 senior developers subscribe to our weekly newsletter • Published in 4 languages (English, Chinese, Japanese and Brazilian Portuguese) • Post content from our QCon conferences • 2 dedicated podcast channels: The InfoQ Podcast, with a focus on Architecture and The Engineering Culture Podcast, with a focus on building • 96 deep dives on innovative topics packed as downloadable emags and minibooks • Over 40 new content items per week
  3. 3. Purpose of QCon - to empower software development by facilitating the spread of knowledge and innovation Strategy - practitioner-driven conference designed for YOU: influencers of change and innovation in your teams - speakers and topics driving the evolution and innovation - connecting and catalyzing the influencers and innovators Highlights - attended by more than 12,000 delegates since 2007 - held in 9 cities worldwide Presented at QCon London www.qconlondon.com
  4. 4. Control Plane
 
 (Management) Compute Compute Compute Compute Client Client Client Client
  5. 5. Why have we granted computers the power to modify themselves?
  6. 6. Unikernels aren’t dead. They’re just not containers. Per Buer CEO IncludeOS (Varnish, Linpro)
  7. 7. What is a Unikernel and how does it behave? Where can this be applied? 
 Experiences.
  8. 8. Unikernel primer
  9. 9. Make the OS a library send_
 packet() write() read()
  10. 10. Link the OS into application
  11. 11. Add bootloader, hw init ++
  12. 12. Traditional vs unikernel application app code libhttp Application kernel boot- loader drivers libs libdb openssl IP Stack Drivers OS kernel libc++ stdlib
  13. 13. Underlying system
 - Bare metal or Virtual Machine
  14. 14. Hello world.
  15. 15. Unikernel Characteristics
  16. 16. Fundamental Immutability
  17. 17. Predictable
 behavior
  18. 18. Self contained 
 &
 simple
  19. 19. Limited compatibility & limited runtime
  20. 20. IncludeOS specifics and experiences C++ Multicore
  21. 21. MyApp 1.0 MyApp 
 1.1 State Memory MyApp 1.1 MyApp 1.1
  22. 22. Configuration
  23. 23. Program code (another vendor) Local adaptations Operating system environment
 (vendor supplied) Data
  24. 24. NaCl
 An alternative to configuration files.
  25. 25. Performant.
 
 Simple.

  26. 26. We’re effectively run-time less.
  27. 27. When are Unikernels relevant? Performant Secure. Contained No kernel/user boundary Predictable
  28. 28. Blue sky stuff
  29. 29. Shadowkernels Kernel 0
 
 (Privileged) Kernel 1
 
 (Unprivileged, RO, secure) Client Kernel 2
 
 (Unprivileged, RO)
  30. 30. Distributed systems vm1 vm2 vm3 vm4 vm0
  31. 31. Watch the video with slide synchronization on InfoQ.com! https://www.infoq.com/presentations/ unikernels-includeos

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