srvoa/docs/core/Configuration.md

Infrastructure for service oriented architecture.

# Configuration

The kermit service configuration system is aware of defining app dependent services, configuring these services
and splitting the configuration into multiple files.

## Service Definition

The dependent application services are defined in `app.services`.
Each service definition of the services hash may be a service constructor or an object with the following keys:

* service: **kermit.Service** (required) the service constructor
* configKey: **String** (optional) the service config key

A valid service definition may look like:

```js
{
    app: {
        services: {
            srv1: Service1,
            srv2: {
                service: Service2
            },
            srv3: {
                service: Service3,
                configKey: 'srv3.config.key'
            }
        }
    }
}
```

All defined services will be instantiated, configured, bootstrapped and launched during the app lifecycle.

## Service Configuration

The service config key is the key that is used to read the service config from.
It can be defined and overridden on different layers.

* If the service provides a `getConfigKey() : String` method, the return value will be used as config key.
* If not,