Design Container Networking · System Design Interview

Design Container NetworkingDesign how containers on a host, and across hosts, get addresses, reach each other by name, and are reached from outside.What it has to do

Every container gets an address and can reach the others on the same network

A container is reachable by service name, and the name follows it when it is replaced

A port on a host can be published so traffic from outside reaches a container

Containers on different networks are isolated from each other by default

Scale

Containers per host: 300

Hosts on one overlay network: 2,000

Out of scope

Load balancing in front of the fleet

TLS and certificates

Firewall policy authoring

Practise this challengeAll system design challenges

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