example userdata

userdata.sh

#!/bin/bash
apt-get update
apt-get install git -y
git clone git://github.com/stelligent/blog_refactor_php /opt/greeter
if [ ":" == ":$(dpkg -l | grep chefdk)" ]; then
  pushd /tmp
  wget --quiet https://packages.chef.io/stable/ubuntu/12.04/chefdk_0.16.28-1_amd64.deb
  dpkg -i chefdk_0.16.28-1_amd64.deb
  mkdir /tmp/cookbooks
fi
pushd /opt/greeter/pipelines/cookbooks/greeter
berks vendor /tmp/cookbooks
cat > /tmp/chef.json <<CHEFJSON
{
  "run_list": [
    "greeter"
  ],
  "greeter": {
    "db_url": "%{DbUrl}",
    "db_name": "%{DbName}",
    "username": "%{DbUsername}",
    "password": "%{DbPassword}",
    "docroot": "%{DocRoot}",
    "server_name": "%{ServerName}"
  }
}
CHEFJSON
cat > /tmp/solo.rb <<SOLO
       	cookbook_path ['/tmp/cookbooks', '/opt/greeter/pipelines/cookbooks']
SOLO
chef-solo -c /tmp/solo.rb -j /tmp/chef.json