Docker swarm and ipv6 on node

Question

I have docker cluster.

version: "3.2"

services:
  manager:
    image: busybox
    networks:
      - frontend
    deploy:
      placement:
        constraints: [node.role == manager]

  worker:
    image: busybox
    depends_on:
      - manager
    networks:
      - frontend
    deploy:
      placement:
        constraints: [node.label.name == hp-laptop]

networks:
  frontend:

On host with label hp-laptop i have ipv6 address.

ping6
PING google.com(lhr.net) 56 data bytes
64 bytes from lhr.net: icmp_seq=1 ttl=57 time=36.6 ms
64 bytes from lhr.net: icmp_seq=2 ttl=57 time=30.0 ms
64 bytes from lhr.net: icmp_seq=3 ttl=57 time=30.6 ms

How i can provide ipv6 support from host (hp-laptop) to docker swarm node using docker stack configuration?

Answer 1

IPv6 doesn't work in Overlay networks . You'd have to use bridge networks.