Split implementations from generic code

controllers/nginx/pkg/cmd/controller/main.go

@@ -0,0 +1,60 @@
+/*
+Copyright 2015 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package main
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/golang/glog"
+
+	"k8s.io/ingress/core/pkg/ingress/controller"
+)
+
+func main() {
+	// start a new nginx controller
+	ngx := newNGINXController()
+	// create a custom Ingress controller using NGINX as backend
+	ic := controller.NewIngressController(ngx)
+	go handleSigterm(ic)
+	// start the controller
+	ic.Start()
+	// wait
+	glog.Infof("shutting down Ingress controller...")
+	for {
+		glog.Infof("Handled quit, awaiting pod deletion")
+		time.Sleep(30 * time.Second)
+	}
+}
+
+func handleSigterm(ic controller.Interface) {
+	signalChan := make(chan os.Signal, 1)
+	signal.Notify(signalChan, syscall.SIGTERM)
+	<-signalChan
+	glog.Infof("Received SIGTERM, shutting down")
+
+	exitCode := 0
+	if err := ic.Stop(); err != nil {
+		glog.Infof("Error during shutdown %v", err)
+		exitCode = 1
+	}
+
+	glog.Infof("Exiting with %v", exitCode)
+	os.Exit(exitCode)
+}