[#1135] ir: Add healthstatus RECONFIGURING

Signed-off-by: Ekaterina Lebedeva <ekaterina.lebedeva@yadro.com>

cmd/frostfs-ir/config.go

@@ -7,6 +7,7 @@ import (
 
 	configViper "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/internal/common/config"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
+	control "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/control/ir"
 	"github.com/spf13/viper"
 	"go.uber.org/zap"
 )
@@ -81,6 +82,10 @@ func watchForSignal(cancel func()) {
 				return
 			case <-sighupCh:
 				log.Info(logs.FrostFSNodeSIGHUPHasBeenReceivedRereadingConfiguration)
+				if !innerRing.CompareAndSwapHealthStatus(control.HealthStatus_READY, control.HealthStatus_RECONFIGURING) {
+					log.Info(logs.FrostFSNodeSIGHUPSkip)
+					break
+				}
 				err := reloadConfig()
 				if err != nil {
 					log.Error(logs.FrostFSNodeConfigurationReading, zap.Error(err))
@@ -92,6 +97,7 @@ func watchForSignal(cancel func()) {
 				if err != nil {
 					log.Error(logs.FrostFSNodeConfigurationReading, zap.Error(err))
 				}
+				innerRing.CompareAndSwapHealthStatus(control.HealthStatus_RECONFIGURING, control.HealthStatus_READY)
 				log.Info(logs.FrostFSNodeConfigurationHasBeenReloadedSuccessfully)
 			}
 		}

pkg/innerring/state.go

@@ -161,6 +161,16 @@ func (s *Server) setHealthStatus(hs control.HealthStatus) {
 	}
 }
 
+func (s *Server) CompareAndSwapHealthStatus(oldSt, newSt control.HealthStatus) (swapped bool) {
+	if swapped = s.healthStatus.CompareAndSwap(int32(oldSt), int32(newSt)); swapped {
+		s.notifySystemd(newSt)
+		if s.irMetrics != nil {
+			s.irMetrics.SetHealth(int32(newSt))
+		}
+	}
+	return
+}
+
 // HealthStatus returns the current health status of the IR application.
 func (s *Server) HealthStatus() control.HealthStatus {
 	return control.HealthStatus(s.healthStatus.Load())
@@ -186,6 +196,8 @@ func (s *Server) notifySystemd(st control.HealthStatus) {
 		err = sdnotify.FlagAndStatus(sdnotify.ReadyEnabled)
 	case control.HealthStatus_SHUTTING_DOWN:
 		err = sdnotify.FlagAndStatus(sdnotify.StoppingEnabled)
+	case control.HealthStatus_RECONFIGURING:
+		err = sdnotify.FlagAndStatus(sdnotify.ReloadingEnabled)
 	default:
 		err = sdnotify.Status(fmt.Sprintf("%v", st))
 	}

pkg/services/control/ir/types.proto

@@ -26,4 +26,7 @@ enum HealthStatus {
 
   // IR application is shutting down.
   SHUTTING_DOWN = 3;
+
+  // IR application is reconfiguring.
+  RECONFIGURING = 4;
 }