piaohai / docker-loadbalancer

Installing Prerequisites

brew update
brew install caskroom/cask/brew-cask
brew cask install boot2docker
brew install fig

Optionally, you can use direnv to automatically set some environment variables, sourced from .envrc:

brew install direnv
direnv allow .

Readying Docker

boot2docker init
boot2docker upgrade
boot2docker up
docker version
docker ps

Boot The App

From the root of the repository:

fig pull && fig build
fig up -d

Inspection

Consul Registered Services

curl http://`boot2docker ip 2>/dev/null`:8500/v1/catalog/services

Visit LB In Default Browser

open "http://`boot2docker ip 2>/dev/null`/"

Adding/Removing Backend Containers

fig scale app=4
fig scale app=1

Gotchas

• The auto-detected advertise IP for Consul-in-Docker on Boot2docker does not appear to be routable from the Nginx container. Use the following to look up the IP to set for -advertise:

boot2docker ssh ifconfig eth0 | grep 'inet addr'