This document discusses Docker networking concepts, deployment options, and layers of networking. It covers key concepts like network namespaces and port mapping. For deployments, it describes single host with up to 40 containers and multi-host options when a single host is overloaded. The layers of networking are low-level, Docker, and multi-host options like overlay and plugins. Specific Docker networking modes like bridge, host, and none are also outlined.

1. Networking
In Docker
Basics , Approaches and Examples
JULY 16, 2017 | JAKIR PATEL

2. Agenda
Introduction and Key Concepts
Deployment Options for Containers
Layers of Networking
Docker Networking with Deployments
Interfaces and Plugins

3. Key Concepts
Network Namespace
docker0 Bridge
Port Mapping
Veth Pair

4. A Docker container needs a host
to run on. This can either be a
physical machine (e.g., a bare-
metal server in your on-premise
datacenter) or a VM either on-
prem or in the cloud.

5. Deployment?
Single Host Deployment
10 to 40 Containers per host.
Multi Host Deployment

6. Layers of
Networking
Low Level Networking
Docker Networking

8. Single Host
Networking
Bridge Mode
Host Mode
None Mode

9. Host Mode
docker run –d –-name nginx-1 –net=host nginx

10. Bridge Mode
docker run –d –-name nginx-1 -p 10000:80 nginx
docker run –d –-name nginx-2 -p 10001:80 nginx

11. None Mode
No networking needed for containers
Custom Networking as Option

12. Multi-host
Deployment
If single host deployment is overloaded.
Options Available
Overlay
Flannel
Weave
Calico

14. Interfaces
and Plugins
Container Network Interface
Libnetwork

15. JAKIR PATEL
Thank You!