create-swarm.sh

#!/usr/bin/env fish

set NUM_NODES 3

docker-machine create -d virtualbox \
  --engine-insecure-registry "manager:5000" \
  manager

set MANAGER_IP (dmip manager)

for i in (seq $NUM_NODES)
  docker-machine create -d virtualbox \
    --virtualbox-cpu-count 4 \
    --virtualbox-memory 4096 \
    --engine-insecure-registry manager:5000 \
    node$i
end

for i in (seq $NUM_NODES)
  docker-machine ssh node$i "sudo sh -c 'echo \"$MANAGER_IP manager\" >> /etc/hosts'";
end

dmenv manager

docker run -d -p 5000:5000 --restart=always --name registry registry:2

docker swarm init --advertise-addr $MANAGER_IP --listen-addr $MANAGER_IP:2377

set TOKEN (docker swarm join-token -q worker)
for i in (seq $NUM_NODES)
  dmenv node$i
  docker swarm join --token $TOKEN $MANAGER_IP:2377
end