cmd control status + expose DaemonStatus via control API

refs #10

cmd/config_job_control.go

@@ -39,6 +39,7 @@ func (j *ControlJob) JobStatus(ctx context.Context) (*JobStatus, error) {
 const (
 	ControlJobEndpointProfile string = "/debug/pprof/profile"
 	ControlJobEndpointVersion string = "/version"
+	ControlJobEndpointStatus  string = "/status"
 )
 
 func (j *ControlJob) JobStart(ctx context.Context) {
@@ -46,6 +47,8 @@ func (j *ControlJob) JobStart(ctx context.Context) {
 	log := ctx.Value(contextKeyLog).(Logger)
 	defer log.Info("control job finished")
 
+	daemon := ctx.Value(contextKeyDaemon).(*Daemon)
+
 	l, err := ListenUnixPrivate(j.sockaddr)
 	if err != nil {
 		log.WithError(err).Error("error listening")
@@ -58,6 +61,10 @@ func (j *ControlJob) JobStart(ctx context.Context) {
 		requestLogger{log: log, handler: jsonResponder{func() (interface{}, error) {
 			return NewZreplVersionInformation(), nil
 		}}})
+	mux.Handle(ControlJobEndpointStatus,
+		requestLogger{log: log, handler: jsonResponder{func() (interface{}, error) {
+			return daemon.Status(), nil
+		}}})
 	server := http.Server{Handler: mux}
 
 outer: