Solution to use static macvlan IPs in Docker swarm

I have not tested this in a multi node swarp yet, so don't expect it to work perfectly

Usage

You need to have the desired IP address set as the alias in the network you are using,

for example, in docker compose:

networks:
  external-net:
    external: true
services:
  plex:
    image: ...
    ...
    networks:
      default:    # need this to use default alias in the default network
      external-net:
        aliases:
          - 192.168.1.8
  swarm-macvlan:
    image: ethanscully/macvlan
    deploy:
      mode: global
      placement:
        constraints:
          - node.role == manager
    volumes: 
      - /var/run/docker.sock:/var/run/docker.sock

To set up the network for example:

docker network create --config-only --subnet 192.168.1.0/24 --gateway 192.168.1.1 -o parent=eno1 external-config
docker network create -d macvlan --scope=swarm --config-from external-config external-net