docker-compose-network-diff

diff between networks and network_mode

tags: learning linux diff-between

content

networks:

• it’s used to connect containers to custom networks
• the self-defined network, containers in the same network can communicate to each other via service’s name
• it creates isolated network segments
• a container can be connected to multiple networks

services:
	web:
		image: nginx
		networks:
		- frontend
		- backend
		# nginx is connected to two networks

network_mode:

• attach a container to the network stack of another container or service
• available values
  • bridge (default): gets its own network namespace
  • none: disable network, container is isolated, no networking at all
  • host: shares host’s network completely, uses host’s ip address
  • container:<name>: uses the network of another container
  • service:<name>: uses the network of another service

differences:

• networks is for connecting containers
• network_mode changes the fundamental networking behavior
  • containers are not just connected, they are literally using the same network stack
  • as if they’re the same container

up

• docker-compose

down

reference