Docker meetup deck.

1. Docker Networking !
Past, Present and Future
John Willis!
@botchagalupe!
Docker!

2. Hello Gordon

3. Agenda
• Overview!
• Software Defined World!
• Docker Networking (past)!
• Docker Networking (present)!
• Docker Networking (future)

4. Who am I

5. Blind Spots
Physical
Virtual

6. What Changed Compute
• Disaggregation of Hardware/Software!
• Web Scale and Open Source!
• Cloud Computing!
• Software Eating the World

7. What is Changing Networks
• Disaggregation of Hardware/Software!
• Web Scale and Open Source!
• Private Cloud Computing!
• Software Eating the World

8. Network vs Compute
Cost
Network
Compute - Storage
Vertical
Integration
Horizontalization
Number Widgets - Economies of Scale

9. Look Familiar?
NetworkCapacityNeeds
Over Provisioned
NetworkUsageGrowth
Time
Under Provisioned

10. Changing Traffic Patterns
1990 2015

11. Changing Traffic Patterns

12. The Edge Changed

13. Why SDN?
• Networks are hard to manage!
• Networks are hard to evolve!
• Networks are hard to understand!

14. SDN is the Decoupling of Control
from the Data Plan

15. quick review of node distribution
• distributed!
• centralized!
• de-centralized

16. Classic Networking
Distributed

17. Centralized

18. Centralized
Forwarding Population
Controller
Match +
Action
The SDN Approach

19. Distributed

20. Distributed
the internets scales

21. Decentralized

22. Decentralized
Topology
Forwarding Population + Clustered Controller
Orchestration
Match +
Action
Retro SDN

23. OVS/DPDK Packet Forwarding Pipeline
Classifier
Table 0
Frame In
Function
Foo
Table 2
Function
Bar
Frame Out…….. Table n
Stages
Programable Data Paths

24. What do we do with all of this?
• Isolation
• Segmentation
• Advanced Segmentation

25. Isolation
• GRE
• STT
• VXLAN

26. Segmentation
• Firewall Consolidation
• QoS
• Load Balancing
• Traffic Redirection
• Monitoring

27. Docker Networking
enhance basic networking!
seamless scale for > 1 host!
Security Compliance and Risk!
reduce Opex

28. Docker Networking
transparent to developers!
native to docker!
familiar to network ops

29. Past
http://windsock.io/the-docker-proxy/

30. Past

31. Past

32. Past

33. Past

34. Past

35. Past

36. Current
• Weave
• Flannel
• Calico
• Triton
• Socketplane

37. Current

38. Future
• Container Network Model
• Libnetwork

39. Future
libnetwork - networking for containers
Libnetwork provides a native Go implementation for connecting containers!
!
The goal of libnetwork is to deliver a robust Container Network Model that
provides a consistent programming interface and the required network
abstractions for applications.!
!
Currently libnetwork is nothing more than an attempt to modularize the
Docker platform's networking subsystem by moving it into libnetwork as a
library.!
!
NOTE: libnetwork project is under heavy development and is not ready for
general use.

40. Future

41. Future

42. Future

43. Future
• Container Network Model (or CNM)
• Notion of a Default Network
• Default Multi-Host Data-path for CNM
• Network API
• Docker Network CLI