A quick script to setup a Docker environment against an already running and properly configured Docker host with some nice containers setup for you ready to go :)

setup-docker.sh

#!/bin/bash

# Sets up a Docker Environment with the following components:
#
# - skydns  (https://index.docker.io/u/crosbymichael/skydns/)
# - skydock (https://github.com/crosbymichael/skydock)
# - hipache (https://index.docker.io/_/hipache/)

self=$(basename ${0})

if [[ "${#}" -eq 0 ]]; then
    echo "Usage: ${self} <docker_hostname>"
    exit 1
fi

HOST=${1}
DOMAIN="local"
SOCKET="/run/docker.sock"

DOCKER0=$(ssh ${HOST} "ip -f inet -o addr show docker0 | cut -d ' ' -f 7 | cut -d '/' -f 1")

# Spin up skydns
echo "Spinning up skydns ..."
ssh ${HOST} "docker run -d -p ${DOCKER0}:53:53/udp -p 60053:53/udp -name skydns crosbymichael/skydns -nameserver 8.8.8.8:53 -domain ${DOMAIN}"
sleep 5

# Spin up skydock
echo "Spinning up skydock ..."
ssh ${HOST} "docker run -d -v ${SOCKET}:/docker.sock -name skydock -link skydns:skydns crosbymichael/skydock -ttl 30 -environment dev -s /docker.sock -domain ${DOMAIN}"

# Spin up hipache
echo "Spinning up hipache ..."
ssh ${HOST} "docker run -d -name hipache -p 80:80 hipache"

ssh ${HOST} "docker ps"

echo "ALL DONE!"

Tested on:

• CoreOS (latest build) on NECTAR Cloud (OpenStack) with Docker 0.8
• OS X Desktop/Client with Docker 0.8

TODO:

• Add better error handling
• Determine where docker.sock is.
• Document the need to reconfigure the Docker daemon appropriately. i.e: docker -d -dns 172.17.42.1 -H unix:///var/run/docker.sock -H tcp://0.0.0.0:4243