Docker Networking Deep Dive

Summary

Exploring Docker bridge, overlay, macvlan, and host networking modes with practical use cases and performance implications.

Commands

docker network create --driver bridge app-net

docker network create -d overlay --attachable mesh-net

docker run --network host nginx

docker network inspect app-net

Screenshots

Conclusion

Bridge networks suffice for single-host development. Overlay networks are essential for Swarm multi-host communication. Macvlan is useful when containers need direct LAN IP addresses. Host networking eliminates NAT overhead for high-performance workloads.