Move code to pkg

pkg/server/server_signals.go

@@ -0,0 +1,37 @@
+// +build !windows
+
+package server
+
+import (
+	"os/signal"
+	"syscall"
+
+	"github.com/containous/traefik/pkg/log"
+)
+
+func (s *Server) configureSignals() {
+	signal.Notify(s.signals, syscall.SIGUSR1)
+}
+
+func (s *Server) listenSignals(stop chan bool) {
+	for {
+		select {
+		case <-stop:
+			return
+		case sig := <-s.signals:
+			if sig == syscall.SIGUSR1 {
+				log.WithoutContext().Infof("Closing and re-opening log files for rotation: %+v", sig)
+
+				if s.accessLoggerMiddleware != nil {
+					if err := s.accessLoggerMiddleware.Rotate(); err != nil {
+						log.WithoutContext().Errorf("Error rotating access log: %v", err)
+					}
+				}
+
+				if err := log.RotateFile(); err != nil {
+					log.WithoutContext().Errorf("Error rotating traefik log: %v", err)
+				}
+			}
+		}
+	}
+}