fix: missing cleanup of tmp folders in NAS gateway setup (#13124)

console service should be shutdown last once all shutdown
sequences are complete, this is to ensure that we do not
prematurely kill the server before it cleans up the

`.minio.sys/tmp/uuid` folder.

NOTE: this only applies to NAS gateway setup.

cmd/gateway-main.go

@@ -345,18 +345,14 @@ func StartGateway(ctx *cli.Context, gw Gateway) {
 	}
 
 	if globalBrowserEnabled {
-		consoleSrv, err := initConsoleServer()
+		globalConsoleSrv, err = initConsoleServer()
 		if err != nil {
 			logger.FatalIf(err, "Unable to initialize console service")
 		}
 
 		go func() {
-			<-globalOSSignalCh
+			logger.FatalIf(globalConsoleSrv.Serve(), "Unable to initialize console server")
-			consoleSrv.Shutdown()
 		}()
-
+	}
-		consoleSrv.Serve()
-	} else {
 	<-globalOSSignalCh
 }
-}

cmd/globals.go

@@ -25,6 +25,7 @@ import (
 	"sync"
 	"time"
 
+	"github.com/minio/console/restapi"
 	"github.com/minio/minio-go/v7/pkg/set"
 	"github.com/minio/minio/internal/bucket/bandwidth"
 	"github.com/minio/minio/internal/handlers"
@@ -315,6 +316,8 @@ var (
 
 	globalTierJournal *tierJournal
 
+	globalConsoleSrv *restapi.Server
+
 	globalDebugRemoteTiersImmediately []string
 	// Add new variable global values here.
 )

cmd/notification.go

@@ -1453,6 +1453,9 @@ func (sys *NotificationSys) GetBandwidthReports(ctx context.Context, buckets ...
 
 // GetClusterMetrics - gets the cluster metrics from all nodes excluding self.
 func (sys *NotificationSys) GetClusterMetrics(ctx context.Context) chan Metric {
+	if sys == nil {
+		return nil
+	}
 	g := errgroup.WithNErrs(len(sys.peerClients))
 	peerChannels := make([]<-chan Metric, len(sys.peerClients))
 	for index := range sys.peerClients {

cmd/server-main.go

@@ -582,20 +582,17 @@ func serverMain(ctx *cli.Context) {
 	}
 
 	if globalBrowserEnabled {
-		consoleSrv, err := initConsoleServer()
+		globalConsoleSrv, err = initConsoleServer()
 		if err != nil {
 			logger.FatalIf(err, "Unable to initialize console service")
 		}
 
 		go func() {
-			logger.FatalIf(consoleSrv.Serve(), "Unable to initialize console server")
+			logger.FatalIf(globalConsoleSrv.Serve(), "Unable to initialize console server")
 		}()
+	}
 
 	<-globalOSSignalCh
-		consoleSrv.Shutdown()
-	} else {
-		<-globalOSSignalCh
-	}
 }
 
 // Initialize object layer with the supplied disks, objectLayer is nil upon any error.

cmd/signals.go

@@ -66,6 +66,10 @@ func handleSignals() {
 			logger.LogIf(context.Background(), oerr)
 		}
 
+		if globalConsoleSrv != nil {
+			logger.LogIf(context.Background(), globalConsoleSrv.Shutdown())
+		}
+
 		return (err == nil && oerr == nil)
 	}