```ruby
require 'config'
app_env = ENV['AWS_ENV'] || 'development'
Config.load_and_set_settings(
  Config.setting_files('config', app_env)
)

require_relative 'aws/aws_helpers'
require_relative 'aws/aws_security_groups_settings'
require_relative 'aws/aws_security_groups'
require_relative 'aws/aws_vpc'

require_relative 'service/service_manager'
require_relative 'service/service_settings'

require_relative 'ubuntu/ubuntu_helper'
require_relative 'redhat/redhat_helper'

require_relative 'kafka/kafka_helpers'
require_relative 'zookeeper/zookeeper_helpers'

```

Make the "test" stage the default
user
```ruby
require 'config'
app_env = ENV['AWS_ENV'] || 'test'
Config.load_and_set_settings(
  Config.setting_files('config', app_env)
)

require_relative 'aws/aws_helpers'
require_relative 'aws/aws_security_groups_settings'
require_relative 'aws/aws_security_groups'
require_relative 'aws/aws_vpc'

require_relative 'service/service_manager'
require_relative 'service/service_settings'

require_relative 'ubuntu/ubuntu_helper'
require_relative 'redhat/redhat_helper'

require_relative 'kafka/kafka_helpers'
require_relative 'zookeeper/zookeeper_helpers'

```
assistant