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Networking Overview for Docker Platform
Aditya Patawari
Consultant and Trainer for Docker, Ansible and DevOps Tools
aditya@adityapatawari.com
adimania on freenode irc
http://adityapatawari.com
July 8, 2016
Aditya Patawari Networking Overview for Docker Platform
Topics
What is the problem?
Default Networks in Docker
Docker Bridge Network
Docker Host Network
Docker None Network
User Defined Networks
Docker Bridge Network
Docker Overlay Network
Aditya Patawari Networking Overview for Docker Platform
What is the problem?
Applications are multi-tiered
Applications are dependent on other applications
Applications are dependent on third party APIs
Not all components reside inside the same containers
Aditya Patawari Networking Overview for Docker Platform
Default Networks in Docker
None
Host
Bridge
Aditya Patawari Networking Overview for Docker Platform
Docker Bridge Network
Created when the Docker daemon is started for first time
Containers are started in this network by default
Enables container to container communication within same
host
Aditya Patawari Networking Overview for Docker Platform
Docker Host Network
Adds the container on the host’s network stack
Identical network as the host
Aditya Patawari Networking Overview for Docker Platform
Docker None Network
No network connectivity
Great for security sensitive processing
Aditya Patawari Networking Overview for Docker Platform
User Defined Networks
Bridge
Overlay
Custom Network Drivers
Aditya Patawari Networking Overview for Docker Platform
Docker Bridge Network
Create more bridge networks
Great for creating isolation within same host
Aditya Patawari Networking Overview for Docker Platform
Docker Overlay Network
Creates multi-host network
Requires a service discovery KV store like Etcd or Consul
Aditya Patawari Networking Overview for Docker Platform
Docker 1.12
ingress - uses overlay
Swarm manager will use ingress to route external traffic
docker gwbridge - uses bridge
docker gwbridge is created on each worker node
Aditya Patawari Networking Overview for Docker Platform
Questions?
Name: Aditya Patawari
Twitter: https://twitter.com/adityapatawari
Email: aditya@adityapatawari.com
Aditya Patawari Networking Overview for Docker Platform

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Networking Overview for Docker Platform

  • 1. Networking Overview for Docker Platform Aditya Patawari Consultant and Trainer for Docker, Ansible and DevOps Tools aditya@adityapatawari.com adimania on freenode irc http://adityapatawari.com July 8, 2016 Aditya Patawari Networking Overview for Docker Platform
  • 2. Topics What is the problem? Default Networks in Docker Docker Bridge Network Docker Host Network Docker None Network User Defined Networks Docker Bridge Network Docker Overlay Network Aditya Patawari Networking Overview for Docker Platform
  • 3. What is the problem? Applications are multi-tiered Applications are dependent on other applications Applications are dependent on third party APIs Not all components reside inside the same containers Aditya Patawari Networking Overview for Docker Platform
  • 4. Default Networks in Docker None Host Bridge Aditya Patawari Networking Overview for Docker Platform
  • 5. Docker Bridge Network Created when the Docker daemon is started for first time Containers are started in this network by default Enables container to container communication within same host Aditya Patawari Networking Overview for Docker Platform
  • 6. Docker Host Network Adds the container on the host’s network stack Identical network as the host Aditya Patawari Networking Overview for Docker Platform
  • 7. Docker None Network No network connectivity Great for security sensitive processing Aditya Patawari Networking Overview for Docker Platform
  • 8. User Defined Networks Bridge Overlay Custom Network Drivers Aditya Patawari Networking Overview for Docker Platform
  • 9. Docker Bridge Network Create more bridge networks Great for creating isolation within same host Aditya Patawari Networking Overview for Docker Platform
  • 10. Docker Overlay Network Creates multi-host network Requires a service discovery KV store like Etcd or Consul Aditya Patawari Networking Overview for Docker Platform
  • 11. Docker 1.12 ingress - uses overlay Swarm manager will use ingress to route external traffic docker gwbridge - uses bridge docker gwbridge is created on each worker node Aditya Patawari Networking Overview for Docker Platform
  • 12. Questions? Name: Aditya Patawari Twitter: https://twitter.com/adityapatawari Email: aditya@adityapatawari.com Aditya Patawari Networking Overview for Docker Platform