Max 29 networks on a single docker node

Each world get (at least 1 network) and there is a limitation that one can have max 29 networks on a host. This results in a similar error message as this when trying to start the world : "failed to create network j-range_internal: Error response from daemon: could not find an available, non-overlapping IPv4 address pool among the defaults to assign to the network"

Solutions:

• modify /etc/docker/daemon.json https://stackoverflow.com/questions/41609998/how-to-increase-maximum-docker-network-on-one-server

{
   "default-address-pools": [
        {
            "base":"172.17.0.0/12",
            "size":16
        },
        {
            "base":"192.168.0.0/16",
            "size":20
        },
        {
            "base":"10.99.0.0/16",
            "size":24
        }
    ]
}

• Move to docker swarm mode (that uses overlay networks without this limitation), also works for single node
• docker swarm init
• change the code of crl to use docker stack deploy instead of docker compose.