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dockerswarm

Static IP address doesn't work in docker compose v3

From the official document, the static ip address should work with docker compose v3 + docker swarm. But I cannot make it work.

This is my docker compose yaml:

version: '3'

networks:
test:
    ipam:
    driver: default
    config:
        - subnet: 10.1.0.0/24

services:
one:
    image: mongo
    networks:
    test:
        ipv4_address: '10.1.0.100'

two:
    image: mongo
    networks:
    test:
        ipv4_address: '10.1.0.101'
three:
    image: mongo
    networks:
    test:
        ipv4_address: '10.1.0.102'

I use docker stack up -c xxx.yml test to deploy. I found the ip of the created containers are 10.1.0.3, 10.1.0.5, ...

Solution

  • That works in non-swarm mode, but not in swarm mode. You may subscribe to this ticket to find out when/if support is added.

    At the moment, there's an anecdotal claim of a workaround, but nobody else seems to have corroborated it.