refactor(manager/scheduler): optimize IP formatting error handling (#4201)

- Optimized error handling when IP formatting fails in the manager and scheduler modules
- Replaced errors.New with fmt.Errorf to improve readability of error messages
- Extracted IP address string into a separate variable to enhance code maintainability

Signed-off-by: jinronga <1460595002@qq.com>

Update manager.go

Update scheduler.go

Update manager.go

refactor(scheduler): 更新 GRPC 监听器的 IP 配置

- 将 GRPC监听 IP 改为全局监听 IP
- 优化了 IP格式化错误的错误消息

Author: jinronga

manager/manager.go

@@ -19,7 +19,6 @@ package manager
 import (
 	"context"
 	"embed"
-	"errors"
 	"fmt"
 	"io/fs"
 	"net"
@@ -318,7 +317,7 @@ func (s *Server) Serve() error {
 	// Generate GRPC listener.
 	ip, ok := ip.FormatIP(s.config.Server.GRPC.ListenIP.String())
 	if !ok {
-		return errors.New("format ip failed")
+		return fmt.Errorf("format ip failed: %s", ip)
 	}
 
 	listener, err := net.Listen("tcp", fmt.Sprintf("%s:%d", ip, s.config.Server.GRPC.Port.Start))

scheduler/scheduler.go

@@ -18,7 +18,6 @@ package scheduler
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"net"
 	"net/http"
@@ -269,7 +268,7 @@ func (s *Server) Serve() error {
 	// Generate GRPC listener.
 	ip, ok := ip.FormatIP(s.config.Server.ListenIP.String())
 	if !ok {
-		return errors.New("format ip failed")
+		return fmt.Errorf("format ip failed: %s", ip)
 	}
 
 	listener, err := net.Listen("tcp", fmt.Sprintf("%s:%d", ip, s.config.Server.Port))