setup.bash

$ docker-machine create 
Creating VirtualBox VM...
Creating SSH key...
Starting VirtualBox VM...
Starting VM...
$ docker-machine start default
$ docker-machine env default
export DOCKER_TLS_VERIFY="1"
export DOCKER_HOST="tcp://192.168.99.100:2376"
export DOCKER_CERT_PATH="/Users/younes/.docker/machine/machines/default"
export DOCKER_MACHINE_NAME="default"
# Run this command to configure your shell: 
# eval "$(docker-machine env default)"
$ eval "$(docker-machine env default)"

wercker-cli

curl -L https://s3.amazonaws.com/downloads.wercker.com/cli/stable/darwin_amd64/wercker -o /usr/local/bin/wercker

wercker.yml

box: node:4.2.1

services:
  - id: mongo
    cmd: --smallfiles
  - redis

# Build definition
build:
    # The steps that will be executed on build
    steps:
        - install-packages:
          packages: curl vim git gcc make apt-utils build-essential python firefox
        # A step that executes `npm install` command
        - npm-install
        - bower-install
        - npm-test