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.

1. Why don’t our computers have
a separate control plane?

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unikernels-includeos
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4. Control
Plane
(Management)
Compute
Compute
Compute
Compute
Client
Client
Client
Client

5. Why have we granted
computers the power to modify
themselves?

7. Unikernels aren’t dead.
They’re just not containers.
Per Buer
CEO IncludeOS
(Varnish, Linpro)

8. What is a Unikernel and how does it
behave?
Where can this be applied?
Experiences.

9. Unikernel primer

10. Make the OS
a library
send_
packet()
write() read()

11. Link the OS
into application

12. Add bootloader, hw init ++

13. Traditional vs unikernel
application
app
code
libhttp
Application
kernel
boot-
loader
drivers libs
libdb openssl
IP Stack Drivers OS
kernel
libc++ stdlib

14. Underlying system
-
Bare metal or Virtual Machine

15. Hello world.

16. Unikernel
Characteristics

17. Fundamental Immutability

18. Predictable
behavior

19. Self contained
&
simple

20. Limited compatibility
&
limited runtime

21. IncludeOS specifics and experiences
C++
Multicore

22. MyApp 1.0
MyApp
1.1
State
Memory
MyApp
1.1
MyApp
1.1

23. Configuration

24. Program code
(another vendor)
Local adaptations
Operating system environment
(vendor supplied)
Data

25. NaCl
An alternative to
configuration files.

28. Performant.
Simple.

29. We’re effectively run-time less.

30. When are Unikernels relevant?
Performant
Secure.
Contained
No kernel/user
boundary
Predictable

31. Blue sky stuff

32. Shadowkernels
Kernel 0
(Privileged)
Kernel 1
(Unprivileged, RO,
secure)
Client
Kernel 2
(Unprivileged, RO)

33. Distributed systems
vm1
vm2
vm3
vm4
vm0

34. Watch the video with slide
synchronization on InfoQ.com!
https://www.infoq.com/presentations/
unikernels-includeos