docker-overlay.sh

docker-cluster.sh

#!/bin/bash

set -e -x

# Create the key-value store
docker-machine create -d vmwarefusion mh-keystore
docker $(docker-machine config mh-keystore) run -d -p "8500:8500" -h "consul" progrium/consul -server -bootstrap

# Create the swarm master
docker-machine create -d vmwarefusion --vmwarefusion-cpu-count=2 \
    --swarm \
    --swarm-master \
    --swarm-image="swarm" \
    --swarm-discovery="consul://$(docker-machine ip mh-keystore):8500" \
    --engine-opt="cluster-store=consul://$(docker-machine ip mh-keystore):8500" \
    --engine-opt="cluster-advertise=eth0:2376" \
    mhs-demo0

# Create swarm slave #1
docker-machine create -d vmwarefusion --vmwarefusion-cpu-count=2 \
    --swarm \
    --swarm-image="swarm" \
    --swarm-discovery="consul://$(docker-machine ip mh-keystore):8500" \
    --engine-opt="cluster-store=consul://$(docker-machine ip mh-keystore):8500" \
    --engine-opt="cluster-advertise=eth0:2376" \
    mhs-demo1

# Create swarm slave #2
docker-machine create -d vmwarefusion --vmwarefusion-cpu-count=2 \
    --swarm \
    --swarm-image="swarm" \
    --swarm-discovery="consul://$(docker-machine ip mh-keystore):8500" \
    --engine-opt="cluster-store=consul://$(docker-machine ip mh-keystore):8500" \
    --engine-opt="cluster-advertise=eth0:2376" \
    mhs-demo2

docker-machine ls

# Point to the swarm master
eval $(docker-machine env --swarm mhs-demo0)

docker info

# Create the overlay network
docker network create \
    -d overlay \
    --subnet=10.10.1.4/30 \
    --subnet=10.10.1.8/30 \
    --subnet=10.10.1.12/30 \
    --subnet=10.11.0.0/16 \
    my-net

# Display the network
docker network inspect my-net

# run tcpdump on the swarm nodes
mkdir -p $HOME/tcpdump
docker run -itd --name=tcpdump0 --net=host -v $HOME/tcpdump:/data --env="constraint:node==mhs-demo0" corfr/tcpdump -i any -w /data/mhs-demo0.pcap
docker run -itd --name=tcpdump1 --net=host -v $HOME/tcpdump:/data --env="constraint:node==mhs-demo1" corfr/tcpdump -i any -w /data/mhs-demo1.pcap
docker run -itd --name=tcpdump2 --net=host -v $HOME/tcpdump:/data --env="constraint:node==mhs-demo2" corfr/tcpdump -i any -w /data/mhs-demo2.pcap

# run web servers on mhs-demo0 and mhs-demo1
docker run -itd --name=web0 --net=my-net --env="constraint:node==mhs-demo0" nginx
docker run -itd --name=web1 --net=my-net --env="constraint:node==mhs-demo1" nginx

docker run -it --rm --net=my-net --env="constraint:node==mhs-demo2" busybox wget -O- http://web0
docker run -it --rm --net=my-net --env="constraint:node==mhs-demo2" busybox wget -O- http://web1

docker kill mhs-demo0/tcpdump0 mhs-demo1/tcpdump1 mhs-demo2/tcpdump2

docker-machine rm mhs-demo0 mhs-demo1 mhs-demo2 mh-keystore