// Aula 31 - Criando um Swarm local no VirtualBox

https://sempreupdate.com.br/como-instalar-o-virtualbox-6-1-no-fedora-centos-e-rhel/

https://phoenixnap.com/kb/install-virtualbox-on-ubuntu

Link de ref: https://docs.docker.com/machine/install-machine/

# base=https://github.com/docker/machine/releases/download/v0.16.0 && curl -L $base/docker-machine-$(uname -s)-$(uname -m) >/tmp/docker-machine && sudo mv /tmp/docker-machine /usr/local/bin/docker-machine && chmod +x /usr/local/bin/docker-machine

# docker-machine create --driver virtualbox default

# docker-machine ls

# docker-machine start default

# for NODE in `seq 1 5`; do 
docker-machine create --driver virtualbox "node-${NODE}"
done

# docker-machine ls

# docker-machine start node-1 node-2 node-3 node-4 node-5

# export IP=$(docker-machine ip node-1)

# docker-machine ssh node-1 docker swarm init --advertise-addr $IP

# export JOIN_TOKEN=$(docker-machine ssh node-1 \ docker swarm join-token worker -q)

#  for NODE in `seq 2 5`; do
NODE_NAME="node-${NODE}"
docker-machine ssh $NODE_NAME docker swarm join \
--token $JOIN_TOKEN $IP:2377
done

# docker-machine ssh node-1 docker node promote node-2 node-3

$ docker-machine ssh node-1 docker node ls