From 10781dd319d74640a0eaeaa7ce4f0042af3b3fa4 Mon Sep 17 00:00:00 2001
From: reshke kirill <reshke@double.cloud>
Date: Tue, 2 Jun 2026 20:53:00 +0000
Subject: [PATCH 1/3] Support log level severity change with SIGUSR1

---
 cmd/client/main.go    |  5 +----
 cmd/yproxy/main.go    | 10 +++-------
 config/instance.go    | 13 +++++++++++++
 pkg/core/core.go      | 11 ++++++++++-
 pkg/ylogger/logger.go | 13 ++-----------
 5 files changed, 29 insertions(+), 23 deletions(-)

diff --git a/cmd/client/main.go b/cmd/client/main.go
index 1eb1cf2..3231280 100644
--- a/cmd/client/main.go
+++ b/cmd/client/main.go
@@ -3,7 +3,6 @@ package main
 import (
 	"fmt"
 	"io"
-	"log"
 	"net"
 	"os"
 
@@ -63,9 +62,7 @@ func Runner(f func(net.Conn, *config.Instance, []string) error) func(*cobra.Comm
 			logLevel = instanceCnf.LogLevel
 		}
 
-		if err := ylogger.UpdateZeroLogLevel(logLevel); err != nil {
-			log.Printf("failed to update log level: %s\n", err)
-		}
+		ylogger.ReloadLogger(instanceCnf.LogPath, logLevel)
 
 		defer func() {
 			_ = con.Close()
diff --git a/cmd/yproxy/main.go b/cmd/yproxy/main.go
index 37fbd30..ea64dbd 100644
--- a/cmd/yproxy/main.go
+++ b/cmd/yproxy/main.go
@@ -1,8 +1,6 @@
 package main
 
 import (
-	"log"
-
 	"github.com/spf13/cobra"
 
 	"github.com/yezzey-gp/yproxy/config"
@@ -30,14 +28,12 @@ var rootCmd = &cobra.Command{
 
 		instance := core.NewInstance()
 
-		if instanceCnf.LogPath != "" {
-			ylogger.ReloadLogger(instanceCnf.LogPath)
-		}
 		if logLevel == "" {
 			logLevel = instanceCnf.LogLevel
 		}
-		if err := ylogger.UpdateZeroLogLevel(logLevel); err != nil {
-			log.Printf("failed to update log level: %s\n", err)
+
+		if instanceCnf.LogPath != "" {
+			ylogger.ReloadLogger(instanceCnf.LogPath, logLevel)
 		}
 
 		return instance.Run(instanceCnf)
diff --git a/config/instance.go b/config/instance.go
index 702ac69..5011ae0 100644
--- a/config/instance.go
+++ b/config/instance.go
@@ -121,7 +121,20 @@ func EmbedDefaults(cfgInstance *Instance) {
 	cfgInstance.YezzeyRestoreParanoid = false
 }
 
+var (
+	bootstrapCfgPath = ""
+)
+
+func ReloadInstanceConfig() (*Instance, error) {
+	LoadInstanceConfig(bootstrapCfgPath)
+	return InstanceConfig(), nil
+}
+
 func LoadInstanceConfig(cfgPath string) (err error) {
+	if bootstrapCfgPath != "" && bootstrapCfgPath != cfgPath {
+		return fmt.Errorf("bootrap config path already set")
+	}
+	bootstrapCfgPath = cfgPath
 	cfgInstance, err = ReadInstanceConfig(cfgPath)
 	if err != nil {
 		return
diff --git a/pkg/core/core.go b/pkg/core/core.go
index a4a7a38..d8afb01 100644
--- a/pkg/core/core.go
+++ b/pkg/core/core.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"log"
 	"net"
 	"os"
 	"os/signal"
@@ -80,7 +81,15 @@ func (i *Instance) Run(instanceCnf *config.Instance) error {
 
 			switch s {
 			case syscall.SIGUSR1:
-				ylogger.ReloadLogger(instanceCnf.LogPath)
+				instanceCnf, err := config.ReloadInstanceConfig()
+
+				if err != nil {
+					log.Printf("failed to update log level: %s\n", err)
+					continue
+				}
+
+				ylogger.ReloadLogger(instanceCnf.LogPath, instanceCnf.LogLevel)
+
 			case syscall.SIGHUP:
 				if dws != nil {
 					err := dws.ServeFor(time.Duration(instanceCnf.DebugMinutes) * time.Minute)
diff --git a/pkg/ylogger/logger.go b/pkg/ylogger/logger.go
index 38a1be3..00eae33 100644
--- a/pkg/ylogger/logger.go
+++ b/pkg/ylogger/logger.go
@@ -33,18 +33,9 @@ func NewZeroLogger(filepath string) *zerolog.Logger {
 	return &logger
 }
 
-func UpdateZeroLogLevel(logLevel string) error {
+func ReloadLogger(filepath string, logLevel string) {
 	level := parseLevel(logLevel)
-	zeroLogger := Zero.With().Logger().Level(level)
-	Zero = &zeroLogger
-	return nil
-}
-
-func ReloadLogger(filepath string) {
-	if filepath == "" { //
-		return // this means os.Stdout, so no need to open new file
-	}
-	newLogger := NewZeroLogger(filepath).Level(Zero.GetLevel())
+	newLogger := NewZeroLogger(filepath).Level(level)
 	Zero = &newLogger
 }
 

From 897e4f8fd92fdb250bdb4e8d6d50b1c2b58e1890 Mon Sep 17 00:00:00 2001
From: reshke kirill <reshke@double.cloud>
Date: Wed, 3 Jun 2026 04:21:06 +0000
Subject: [PATCH 2/3] check

---
 config/instance.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/config/instance.go b/config/instance.go
index 5011ae0..6a8871b 100644
--- a/config/instance.go
+++ b/config/instance.go
@@ -126,7 +126,9 @@ var (
 )
 
 func ReloadInstanceConfig() (*Instance, error) {
-	LoadInstanceConfig(bootstrapCfgPath)
+	if err := LoadInstanceConfig(bootstrapCfgPath); err != nil {
+		return nil, err
+	}
 	return InstanceConfig(), nil
 }
 

From 6803c5fd2cb8a586c9d132a69235587751f88f92 Mon Sep 17 00:00:00 2001
From: reshke kirill <reshke@double.cloud>
Date: Wed, 3 Jun 2026 04:23:21 +0000
Subject: [PATCH 3/3] spell

---
 config/instance.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/config/instance.go b/config/instance.go
index 6a8871b..146d343 100644
--- a/config/instance.go
+++ b/config/instance.go
@@ -134,7 +134,7 @@ func ReloadInstanceConfig() (*Instance, error) {
 
 func LoadInstanceConfig(cfgPath string) (err error) {
 	if bootstrapCfgPath != "" && bootstrapCfgPath != cfgPath {
-		return fmt.Errorf("bootrap config path already set")
+		return fmt.Errorf("bootstrap config path already set")
 	}
 	bootstrapCfgPath = cfgPath
 	cfgInstance, err = ReadInstanceConfig(cfgPath)