Networking in docker
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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.
Networking in docker
- 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