private static HttpResponse response(int status, String hostname, String name, String message) {
        Slime slime = new Slime();
        Cursor root = slime.setObject();
        root.setString("hostname", hostname);
        root.setString("upstream", name);
        root.setString("message", message);
        return new SlimeJsonResponse(status, slime);
    }
This handler implements the /akamai health check.

The global routing service polls /akamai to determine if a deployment should receive requests via its global
endpoint.

@author oyving
@author Martin Polden
@author Torbjorn Smorgrav
@author Wacek Kusnierczyk
routing-generator/src/main/java/com/yahoo/vespa/hosted/routing/restapi/AkamaiHandler.java