Raspberry Pi Swarm with overlay network

swarm-rpi.sh

# Create a RPi with consul running on it
docker-machine-hypriot create -d hypriot --hypriot-ip-address=192.168.1.3 swl-consul
docker $(docker-machine config swl-consul) run -d --restart=always -p 8500:8500 -h consul nimblestratus/rpi-consul -server -bootstrap

# Create a RPi swarm with consul discovery
docker-machine-hypriot create -d hypriot --hypriot-ip-address=192.168.1.4 --swarm --swarm-master --swarm-discovery="consul://$(docker-machine ip swl-consul):8500" --engine-opt="cluster-store=consul://$(docker-machine ip swl-consul):8500" --engine-opt="cluster-advertise=eth0:0" swl-demo0
docker-machine-hypriot create -d hypriot --hypriot-ip-address=192.168.1.5 --swarm --swarm-discovery="consul://$(docker-machine ip swl-consul):8500" --engine-opt="cluster-store=consul://$(docker-machine ip swl-consul):8500" --engine-opt="cluster-advertise=eth0:0" --engine-label "storage=ssd" swl-demo1

# Connect to the RPi swarm
eval $(docker-machine env --swarm swl-demo0)

# You may check your RPi swarm
docker info

# Create an overlay network
docker network create -d overlay my-net

# You may check your networks
docker network ls

# Try it out
docker run -itd --name=web --net=my-net --env="constraint:node==swl-demo0" hypriot/rpi-nano-httpd
docker run -it --rm --net=my-net --env="contraint:node=swl-demo1" hypriot/armhf-busybox wget -O- http://web

This is a demo from @chanezon VirtualBox demo https://github.com/chanezon/docker-tips/blob/master/orchestration-networking/swarm-local.sh ported to three Raspberry Pis running HypriotOS "Hector".

I just ran these commands with the Hypriot docker-machine Mac binary which is still version 0.4.1, but plays well with Docker 1.9 and Swarm 1.0