Returns CompletionStage(result) containing the system's liveness result
Returns CompletionStage(true) to indicate that the process is alive but does not mean that it is ready to receive traffic e.g.
Returns CompletionStage(true) to indicate that the process is alive but does not mean that it is ready to receive traffic e.g. is has not joined the cluster or is loading initial state from a database
Returns CompletionStage(true) if the system is ready to receive user traffic
Returns CompletionStage(result), containing the system's readiness result
Can be used to instantiate health checks directly rather than rely on the automatic management route. Useful if want to host the health check via a protocol other than HTTP or not in the Akka Management HTTP server