Setup a Docker Swarm multi-host cluster on DigitalOcean

create-multi-host-swarm-digitalocean.sh

docker-machine create \
  --driver=digitalocean \
  --digitalocean-access-token=$DO_TOKEN \
  --digitalocean-size=512mb \
  --digitalocean-region=lon1 \
  --digitalocean-private-networking=true \
    swarm-consul

docker $(docker-machine config swarm-consul) run -d \
  --net=host progrium/consul --server -bootstrap-expect 1

kvip=$(docker-machine ip swarm-consul)

docker-machine create \
  --driver=digitalocean \
  --digitalocean-access-token=$DO_TOKEN \
  --digitalocean-size=512mb \
  --digitalocean-region=lon1 \
  --digitalocean-private-networking=true \
  --swarm \
  --swarm-master \
  --swarm-discovery consul://${kvip}:8500 \
  --engine-opt "cluster-store consul://${kvip}:8500" \
  --engine-opt "cluster-advertise eth1:2376" \
    swarm

docker-machine create \
  --driver=digitalocean \
  --digitalocean-access-token=$DO_TOKEN \
  --digitalocean-size=512mb \
  --digitalocean-region=lon1 \
  --digitalocean-private-networking=true \
  --swarm \
  --swarm-discovery consul://${kvip}:8500 \
  --engine-opt "cluster-store consul://${kvip}:8500" \
  --engine-opt "cluster-advertise eth1:2376" \
    lon1-node-1

eval $(docker-machine env --swarm swarm)
docker info