bash script to create docker swarm cluster with docker machine and virtualbox

swarm-create

#!/bin/bash

# Script para generar entorno simulado de cluster Swarm con 3 nodos

# Creación de maquina default (se utilizara como cliente )
# docker-machine create -d virtualbox default
# eval $(docker-machine env default)

# Lanzamos swarm desde maquina default
SWARM_TOKEN=$(docker run swarm create)
echo "SWARM_TOKEN: $SWARM_TOKEN" >> swarm_token.txt

# Creación de maquina Swarm Master
docker-machine create -d virtualbox --swarm --swarm-master --swarm-discovery token://$SWARM_TOKEN swarm-master
docker-machine ls

# Creación de Nodos
docker-machine create -d virtualbox --swarm --swarm-discovery token://$SWARM_TOKEN swarm-agent-00
docker-machine create -d virtualbox --swarm --swarm-discovery token://$SWARM_TOKEN swarm-agent-01
docker-machine create -d virtualbox --swarm --swarm-discovery token://$SWARM_TOKEN swarm-agent-02
docker-machine ls

# Apuntar consola a Docker en Swarm Master
# Point your Docker environment to the machine running the swarm master
eval $(docker-machine env --swarm swarm-master)

# Listamos nodos activos
docker run -rm swarm list token://$SWARM_TOKEN

echo "SWARM_TOKEN: $SWARM_TOKEN"
docker info