swarm-digitalocean.sh

#!/usr/bin/env bash

set -e
# export DOTOKEN=XXXXXXXXX
DOREGION=nyc1
#export DOSSHKEY=XXXXXXXX
DOPRIVATE=true

DOOPTIONS=" --digitalocean-region=$DOREGION --digitalocean-private-networking=$DOPRIVATE --digitalocean-ssh-key-fingerprint=$DOSSHKEY"

MANAGERS=1
WORKERS=3

i=1

while [ $i -le $MANAGERS ]
do
docker-machine   create --driver digitalocean --digitalocean-access-token=$DOTOKEN $DOOPTIONS do-manager-$i
i=$[$i+1]
done 
PIP_MANAGER_1=$(docker-machine ssh do-manager-1 ifconfig eth1 | grep 'inet addr:' | cut -d: -f2 | awk '{ print $1}')

i=1
while [ $i -le $WORKERS ]
do
docker-machine   create --driver digitalocean --digitalocean-access-token=$DOTOKEN $DOOPTIONS do-worker-$i
i=$[$i+1]
done 


eval $(docker-machine env do-manager-1)


docker swarm init \
    --advertise-addr $PIP_MANAGER_1 \
    --listen-addr $PIP_MANAGER_1:2377

TOKEN_MANAGER=$(docker swarm join-token -q manager)
TOKEN_WORKER=$(docker swarm join-token -q worker)



if [ $MANAGERS > 1 ] ; then
  m=2
  while [ $m -le $MANAGERS ]; do
  eval $(docker-machine env do-manager-$m)
  docker swarm join --token $TOKEN_MANAGER $PIP_MANAGER_1:2377
  m=$[$m+1]
  done
fi

if [ $WORKERS > 0 ] ; then
  w=1
  while [ $w -le $WORKERS ]; do
  eval $(docker-machine env do-worker-$w)
  docker swarm join --token $TOKEN_WORKER $PIP_MANAGER_1:2377
  w=$[$w+1]
  done
fi

eval $(docker-machine env do-manager-1)

docker node ls
## echo "$PIP_MANAGER_1 do-manager-1" >> /etc/hosts
###  echo "{ \"insecure-registries\":[\"do-manager-1:5000\"] }" > /etc/docker/daemon.json
#### docker node update --availability drain do-manager-1