Added sigHandler to print stackTrace, modified probe params

storagesvc/storagesvc.go

@@ -24,6 +24,9 @@ import (
 	"os"
 	"strconv"
 	"time"
+	"os/signal"
+	"syscall"
+	"runtime/debug"
 
 	"github.com/gorilla/handlers"
 	"github.com/gorilla/mux"
@@ -171,7 +174,20 @@ func (ss *StorageService) Start(port int) {
 	log.Fatal(http.ListenAndServe(address, handlers.LoggingHandler(os.Stdout, r)))
 }
 
+func dumpStackTrace() {
+	debug.PrintStack()
+}
+
 func RunStorageService(storageType StorageType, storagePath string, containerName string, port int, enablePruner bool) *StorageService {
+	// register signal handler for dumping stack trace.
+	c := make(chan os.Signal, 1)
+    	signal.Notify(c, syscall.SIGTERM)
+    	go func() {
+		<-c
+		dumpStackTrace()
+		os.Exit(1)
+    	}()
+
 	// initialize logger
 	log.SetLevel(log.InfoLevel)