Introduce admin endpoint to expose the server status

[ggaeta1]

The problem

I am not able to understand when the server is ready. The workaround that I used is based on finding a string in the logs

Detailed description

Introduce an admin endpoint to retrieve the server status

[bestokes]

Please review after implementation of the routing object model. @mikkokar

[kvosper]

Closing all issues over 3 years old. New issues can be created if problems are still occurring.