strausmann/keepalived-swarm repository overview

lsmod | grep -P '^ip_vs\s' || (echo "modprobe ip_vs" >> /etc/modules && modprobe ip_vs)

docker node update node1 --label-add KEEPALIVED_PRIORITY=100
docker node update node2 --label-add KEEPALIVED_PRIORITY=200
docker node update node3 --label-add KEEPALIVED_PRIORITY=300

version: '3.7'

services:
  keepalived:
    image: strausmann/keepalived-swarm:latest
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /usr/bin/docker:/usr/bin/docker:ro
    networks:
      - host
    deploy:
      mode: global
      placement:
        constraints: [node.role == manager]
    environment:
      KEEPALIVED_VIRTUAL_IPS: "192.168.1.231, 192.168.1.232"

networks:
  host:
    external: true
    name: host