Key-value store example

In this example, we use Servicebox to test a toy key-value store which persists data in Postgres and writes metrics in InfluxDB. The example provides a solution for some common issues you might encounter while using the library:

• Defining ready-checks for your services, and running them on a local Docker instance.
• Resolving the running services host/ports (which are dynamically assigned by the library) and updating your app configuration accordingly.
• tearing down the running containers at the end of the test suite, using scalatest afterAll hook (this is intended as an alternative to the JVM shutdown hook shown in the main README).