Simple docker swarm creation script

docker-swarm-create.sh

#!/bin/bash

NODECOUNT=2

SWARM_DISCOVERY="token://$(docker run --rm swarm create)"
DRIVER="--driver digitalocean --digitalocean-access-token="$(cat ~/.docker/digitaloceantoken)
#DRIVER="--driver virtualbox"

#DIGITALOCEAN_SIZE=64gb
docker-machine create \
            $DRIVER \
            --swarm \
            --swarm-master \
            --swarm-strategy "binpack" \
            --swarm-discovery "$SWARM_DISCOVERY" \
          swarm-master

for nodeNumber in $(seq -w 1 $NODECOUNT)
  do
    docker-machine create \
            $DRIVER \
            --swarm \
            --swarm-discovery "$SWARM_DISCOVERY" \
          swarm-node-$nodeNumber
  done