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Posted to notifications@apisix.apache.org by to...@apache.org on 2020/12/08 06:06:16 UTC

[apisix-ingress-controller] 01/01: chore: added the command line

This is an automated email from the ASF dual-hosted git repository.

tokers pushed a commit to branch chore/cli
in repository https://gitbox.apache.org/repos/asf/apisix-ingress-controller.git

commit 7fd967fdd3cdb2b45c488a207f1fef13ac31bcf3
Author: tokers <zc...@gmail.com>
AuthorDate: Tue Dec 8 14:05:42 2020 +0800

    chore: added the command line
---
 .gitignore                         |   1 +
 Makefile                           |  24 +++
 cmd/cmd.go                         |  19 +++
 cmd/ingress/ingress.go             | 114 +++++++++++++
 conf/conf.json                     |  14 +-
 conf/{config => kubeconfig}        |   0
 go.mod                             |  15 +-
 go.sum                             | 322 +++++++++++++++++++++++++++----------
 log/log.go                         |  10 +-
 main.go                            |  57 +------
 {conf => pkg/config}/errno.go      |   2 +-
 {conf => pkg/config}/init.go       | 182 +++++++++++----------
 pkg/ingress/controller/endpoint.go |  20 +--
 pkg/ingress/controller/watch.go    |  14 +-
 pkg/ingress/endpoint/ep.go         |   6 +-
 pkg/scheduler.go                   |   8 +-
 pkg/utils/utils.go                 |  23 +++
 17 files changed, 558 insertions(+), 273 deletions(-)

diff --git a/.gitignore b/.gitignore
index 97cca67..8db5691 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@
 *.out
 
 .idea
+apisix-ingress-controller
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..d4f088b
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,24 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+#
+default: build
+
+build:
+	go build -o apisix-ingress-controller main.go
+lint:
+	golangci-lint run
+
+.PHONY: build lint
\ No newline at end of file
diff --git a/cmd/cmd.go b/cmd/cmd.go
new file mode 100644
index 0000000..1179533
--- /dev/null
+++ b/cmd/cmd.go
@@ -0,0 +1,19 @@
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+
+	"github.com/api7/ingress-controller/cmd/ingress"
+)
+
+// NewAPISIXIngressControllerCommand creates the apisix-ingress-controller command.
+func NewAPISIXIngressControllerCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "apisix-ingress-controller [command]",
+		Short:   "Yet another Ingress controller for Kubernetes using Apache APISIX as the high performance reverse proxy.",
+		Version: "", // TODO: fill the version info.
+	}
+
+	cmd.AddCommand(ingress.NewIngressCommand())
+	return cmd
+}
diff --git a/cmd/ingress/ingress.go b/cmd/ingress/ingress.go
new file mode 100644
index 0000000..df2e590
--- /dev/null
+++ b/cmd/ingress/ingress.go
@@ -0,0 +1,114 @@
+package ingress
+
+import (
+	"context"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/golang/glog"
+	"github.com/spf13/cobra"
+	api6Informers "github.com/gxthrj/apisix-ingress-types/pkg/client/informers/externalversions"
+
+	"github.com/api7/ingress-controller/pkg"
+	"github.com/api7/ingress-controller/pkg/config"
+	"github.com/api7/ingress-controller/log"
+	"github.com/api7/ingress-controller/pkg/ingress/controller"
+	"github.com/api7/ingress-controller/pkg/utils"
+)
+
+// NewIngressCommand creates the ingress sub command for apisix-ingress-controller.
+func NewIngressCommand() *cobra.Command {
+	var (
+		configPath string
+	)
+	conf := config.NewDefaultConfig()
+	cmd := &cobra.Command{
+		Use:     "ingress [flags]",
+		Short:   "launch the controller",
+		Example: `Run apisix-ingress-controller from configuration file:
+
+	apisix-ingress-controller ingress --config-path /path/to/config.json`,
+		Run: func(cmd *cobra.Command, args []string) {
+			logger := log.GetLogger()
+			if configPath != "" {
+				fileConf, err := config.NewConfigFromFile(configPath)
+				if err != nil {
+					utils.Dief("failed to parse configuration file [%s]: %s", configPath, err.Error())
+					os.Exit(1)
+				}
+				conf = fileConf
+			}
+
+			if err := config.InitInformer(conf); err != nil {
+				utils.Dief("failed to initialize Kubernetes shared index informer: %s", err.Error())
+				os.Exit(1)
+			}
+
+			defer glog.Flush()
+			kubeClientSet := config.GetKubeClient()
+			apisixClientset := config.InitApisixClient()
+			sharedInformerFactory := api6Informers.NewSharedInformerFactory(apisixClientset, 0)
+			stop := make(chan struct{})
+			c := &controller.Api6Controller{
+				KubeClientSet:             kubeClientSet,
+				Api6ClientSet:             apisixClientset,
+				SharedInformerFactory:     sharedInformerFactory,
+				CoreSharedInformerFactory: config.CoreSharedInformerFactory,
+				Stop:                      stop,
+			}
+			epInformer := c.CoreSharedInformerFactory.Core().V1().Endpoints()
+			config.EndpointsInformer = epInformer
+
+			// endpoint
+			c.Endpoint()
+			go c.CoreSharedInformerFactory.Start(stop)
+
+			// ApisixRoute
+			c.ApisixRoute()
+			// ApisixUpstream
+			c.ApisixUpstream()
+			// ApisixService
+			c.ApisixService()
+
+			go func(){
+				time.Sleep(time.Duration(10)*time.Second)
+				c.SharedInformerFactory.Start(stop)
+			}()
+
+			router := pkg.Route()
+			httpSrv := http.Server{
+				Addr: ":8080",
+				Handler: router,
+			}
+
+			go func() {
+				sigCh := make(chan os.Signal, 1)
+				signal.Notify(sigCh, syscall.SIGTERM, syscall.SIGINT)
+				<-sigCh
+
+				close(stop)
+
+				cancelCtx, cancel := context.WithTimeout(context.TODO(), 5*time.Second)
+				defer cancel()
+				if err := httpSrv.Shutdown(cancelCtx); err != nil {
+					logger.Fatalf("failed to shutdown http server: %s", err.Error())
+				}
+			}()
+
+			if err := httpSrv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+				logger.Fatalf("ListenAndServe: %s", err)
+			}
+		},
+	}
+
+	cmd.PersistentFlags().StringVar(&configPath, "config-path", "", "file path for the configuration of apisix-ingress-controller")
+	cmd.PersistentFlags().StringVar(&conf.Kubeconfig, "kubeconfig", "", "Kubernetes configuration file (by default in-cluster configuration will be used)")
+	cmd.PersistentFlags().StringSliceVar(&conf.Etcd.Endpoints, "etcd-endpoints", nil, "etcd endpoints")
+	cmd.PersistentFlags().StringVar(&conf.APISIX.BaseURL, "apisix-base-url", "", "the base URL for APISIX instance")
+	cmd.PersistentFlags().StringVar(&conf.SyslogServer, "syslog-server", "", "syslog server address")
+
+	return cmd
+}
diff --git a/conf/conf.json b/conf/conf.json
index c5adcc4..f8503bd 100644
--- a/conf/conf.json
+++ b/conf/conf.json
@@ -1,13 +1,7 @@
 {
-  "conf":{
-    "k8sAuth":{
-      "file": "/Users/jinwei/go_git/go/src/github.com/api7/ingress-controller/conf/config"
-    },
-    "syslog":{
-      "host": "localhost"
-    },
-    "apisix":{
+    "kubeconfig": "conf/kubeconfig",
+    "syslog_server": "localhost",
+    "apisix": {
       "base_url": "http://172.16.20.90:30116/apisix/admin"
     }
-  }
-}
\ No newline at end of file
+}
diff --git a/conf/config b/conf/kubeconfig
similarity index 100%
rename from conf/config
rename to conf/kubeconfig
diff --git a/go.mod b/go.mod
index 9ac3793..c72fb1d 100644
--- a/go.mod
+++ b/go.mod
@@ -3,26 +3,17 @@ module github.com/api7/ingress-controller
 go 1.13
 
 require (
-	github.com/coreos/etcd v3.3.18+incompatible
-	github.com/coreos/go-semver v0.3.0 // indirect
-	github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7 // indirect
-	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
 	github.com/gogo/protobuf v1.3.1 // indirect
 	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
-	github.com/google/uuid v1.1.1 // indirect
 	github.com/gxthrj/apisix-ingress-types v0.1.2
 	github.com/gxthrj/apisix-types v0.1.0
 	github.com/gxthrj/seven v0.1.9
 	github.com/julienschmidt/httprouter v1.3.0
-	github.com/pkg/errors v0.8.1
+	github.com/k0kubun/colorstring v0.0.0-20150214042306-9440f1994b88 // indirect
 	github.com/sirupsen/logrus v1.4.2
+	github.com/spf13/cobra v1.1.1
 	github.com/stretchr/testify v1.4.0
-	github.com/tidwall/gjson v1.3.5
-	go.uber.org/zap v1.13.0 // indirect
-	google.golang.org/genproto v0.0.0-20191205163323-51378566eb59 // indirect
-	google.golang.org/grpc v1.25.1 // indirect
-	gopkg.in/resty.v1 v1.12.0
-	gopkg.in/yaml.v2 v2.2.4
+	gopkg.in/yaml.v2 v2.2.8
 	k8s.io/api v0.0.0-20190819141258-3544db3b9e44
 	k8s.io/apimachinery v0.0.0-20190817020851-f2f3a405f61d
 	k8s.io/client-go v0.0.0-20190819141724-e14f31a72a77
diff --git a/go.sum b/go.sum
index 8fc2341..e2e8397 100644
--- a/go.sum
+++ b/go.sum
@@ -1,210 +1,315 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
+cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
+cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
+cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
+cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
+cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
+cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
+dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/Azure/go-autorest v11.1.2+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
-github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
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+github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
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+github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/api7/ingress-types v0.1.2 h1:K8GxVKSvPi89CHozico/oLbcy6mZOdeOk+VfJRCLXrE=
 github.com/api7/ingress-types v0.1.2/go.mod h1:xWuHLSHGN4/JZjz9b0ftKgtE3yZ7NehkJAiTyZ+KoPA=
 github.com/api7/types v0.1.0 h1:x8nOUY9yjNCCpxlODqXpp5MrEjp9W4grNyGsgxxLq1Y=
 github.com/api7/types v0.1.0/go.mod h1:STdHATWxqIeJhUEXt6dZTd6z0To0qO70K/1mnfBtlC0=
-github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
+github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
+github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
+github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
+github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
+github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJmJgSg28kpZDP6UIiPt0e0Oz0kqKNGyRaWEPv84=
+github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/coreos/etcd v3.3.18+incompatible h1:Zz1aXgDrFFi1nadh58tA9ktt06cmPTwNNP3dXwIq1lE=
-github.com/coreos/etcd v3.3.18+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
-github.com/coreos/go-semver v0.3.0 h1:wkHLiw0WNATZnSG7epLsujiMCgPAc9xhjJ4tgnAxmfM=
+github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
+github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
-github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7 h1:u9SHYsPQNyt5tgDm3YN7+9dYrpK96E5wFilTFWIDZOM=
-github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
-github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f h1:lBNOc5arjvs8E5mO2tbpBpLoyyu8B6e44T7hJy6potg=
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 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
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 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dgrijalva/jwt-go v0.0.0-20160705203006-01aeca54ebda/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
+github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
+github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
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-github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
-github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/evanphx/json-patch v0.0.0-20190203023257-5858425f7550/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
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+google.golang.org/appengine v1.6.1 h1:QzqyMA1tlu6CgqCDUtU9V+ZKhLFT2dkJuANu5QaxI3I=
+google.golang.org/appengine v1.6.1/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww/cMBSeb0=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
+google.golang.org/genproto v0.0.0-20190418145605-e7d98fc518a7/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
+google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
+google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
+google.golang.org/genproto v0.0.0-20190801165951-fa694d86fc64/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
-google.golang.org/genproto v0.0.0-20191205163323-51378566eb59 h1:A2If0NMGFAltEHPrnAZY86sBw/gA9ESWJdgG7kVWt64=
-google.golang.org/genproto v0.0.0-20191205163323-51378566eb59/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
+google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBrqXvoKpeg0TB2l7cyZUmoaFKYIwrEpbDKLA8=
+google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
-google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
-google.golang.org/grpc v1.25.1 h1:wdKvqQk7IttEw92GoRyKG2IDrUIpgpj6H6m81yfeMW0=
-google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
+google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
+google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
+gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
+gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/inf.v0 v0.9.0 h1:3zYtXIO92bvsdS3ggAdA8Gb4Azj0YU+TVY1uGYNFA8o=
 gopkg.in/inf.v0 v0.9.0/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
+gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/resty.v1 v1.12.0 h1:CuXP0Pjfw9rOuY6EP+UvtNvt5DSqHpIxILZKT/quCZI=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
+honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 k8s.io/api v0.0.0-20190819141258-3544db3b9e44 h1:7Gz7/nQ7X2qmPXMyN0bNq7Zm9Uip+UnFuMZTd2l3vms=
 k8s.io/api v0.0.0-20190819141258-3544db3b9e44/go.mod h1:AOxZTnaXR/xiarlQL0JUfwQPxjmKDvVYoRp58cA7lUo=
@@ -272,5 +415,6 @@ k8s.io/klog v0.3.1/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
 k8s.io/kube-openapi v0.0.0-20190228160746-b3a7cee44a30/go.mod h1:BXM9ceUBTj2QnfH2MK1odQs778ajze1RxcmP6S8RVVc=
 k8s.io/utils v0.0.0-20190221042446-c2654d5206da h1:ElyM7RPonbKnQqOcw7dG2IK5uvQQn3b/WPHqD5mBvP4=
 k8s.io/utils v0.0.0-20190221042446-c2654d5206da/go.mod h1:8k8uAuAQ0rXslZKaEWd0c3oVhZz7sSzSiPnVZayjIX0=
+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 sigs.k8s.io/yaml v1.1.0 h1:4A07+ZFc2wgJwo8YNlQpr1rVlgUDlxXHhPJciaPY5gs=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
diff --git a/log/log.go b/log/log.go
index 850890c..1bbfb20 100644
--- a/log/log.go
+++ b/log/log.go
@@ -3,12 +3,12 @@ package log
 import (
 	"bufio"
 	"fmt"
+	"github.com/api7/ingress-controller/pkg/config"
 	"github.com/sirupsen/logrus"
 	"log/syslog"
 	"os"
 	"runtime"
 	"strings"
-	"github.com/api7/ingress-controller/conf"
 )
 
 var logEntry *logrus.Entry
@@ -18,17 +18,17 @@ func GetLogger() *logrus.Entry {
 		var log = logrus.New()
 		setNull(log)
 		log.SetLevel(logrus.DebugLevel)
-		if conf.ENV != conf.LOCAL {
+		if config.ENV != config.LOCAL {
 			log.SetLevel(logrus.InfoLevel)
 		}
 		log.SetFormatter(&logrus.JSONFormatter{})
 		logEntry = log.WithFields(logrus.Fields{
 			"app": "ingress-controller",
 		})
-		hook, err := createHook("udp", fmt.Sprintf("%s:514", conf.Syslog.Host),
+		hook, err := createHook("udp", fmt.Sprintf("%s:514", config.SyslogServer),
 			syslog.LOG_LOCAL4, "ingress-controller")
 		if err != nil {
-			panic("failed to create log hook " + conf.Syslog.Host)
+			panic("failed to create log hook " + config.SyslogServer)
 		}
 		log.AddHook(hook)
 	}
@@ -108,7 +108,7 @@ func (hook *SysLogHook) Fire(entry *logrus.Entry) error {
 }
 
 func localPrint(line string) {
-	if conf.ENV != conf.BETA && conf.ENV != conf.PROD && conf.ENV != conf.HBPROD{
+	if config.ENV != config.BETA && config.ENV != config.PROD && config.ENV != config.HBPROD {
 		fmt.Print(line)
 	}
 }
diff --git a/main.go b/main.go
index 738ddcf..3dad535 100644
--- a/main.go
+++ b/main.go
@@ -1,59 +1,16 @@
 package main
 
 import (
-	"github.com/api7/ingress-controller/pkg/ingress/controller"
-	"github.com/api7/ingress-controller/conf"
-	api6Informers "github.com/gxthrj/apisix-ingress-types/pkg/client/informers/externalversions"
-	"net/http"
-	"github.com/api7/ingress-controller/pkg"
+	"os"
+
+	"github.com/api7/ingress-controller/cmd"
 	"github.com/api7/ingress-controller/log"
-	"time"
-	"flag"
-	"github.com/golang/glog"
 )
 
 func main(){
-	flag.Parse()
-	defer glog.Flush()
-	var logger = log.GetLogger()
-	kubeClientSet := conf.GetKubeClient()
-	apisixClientset := conf.InitApisixClient()
-	sharedInformerFactory := api6Informers.NewSharedInformerFactory(apisixClientset, 0)
-	stop := make(chan struct{})
-	c := &controller.Api6Controller{
-		KubeClientSet: kubeClientSet,
-		Api6ClientSet: apisixClientset,
-		SharedInformerFactory: sharedInformerFactory,
-		CoreSharedInformerFactory: conf.CoreSharedInformerFactory,
-		Stop: stop,
-	}
-	epInformer := c.CoreSharedInformerFactory.Core().V1().Endpoints()
-	conf.EndpointsInformer = epInformer
-
-	// endpoint
-	c.Endpoint()
-	go c.CoreSharedInformerFactory.Start(stop)
-
-	// ApisixRoute
-	c.ApisixRoute()
-	// ApisixUpstream
-	c.ApisixUpstream()
-	// ApisixService
-	c.ApisixService()
-
-	go func(){
-		time.Sleep(time.Duration(10)*time.Second)
-		c.SharedInformerFactory.Start(stop)
-	}()
-
-	//if err != nil {
-	//	fmt.Println(err.Error())
-	//}
-	// web
-	router := pkg.Route()
-	err := http.ListenAndServe(":8080", router)
-	if err != nil {
-		logger.Fatal("ListenAndServe: ", err)
+	root := cmd.NewAPISIXIngressControllerCommand()
+	if err := root.Execute(); err != nil {
+		log.GetLogger().Error(err.Error())
+		os.Exit(1)
 	}
 }
-
diff --git a/conf/errno.go b/pkg/config/errno.go
similarity index 97%
rename from conf/errno.go
rename to pkg/config/errno.go
index 1129406..4a7cc08 100644
--- a/conf/errno.go
+++ b/pkg/config/errno.go
@@ -1,4 +1,4 @@
-package conf
+package config
 
 import "fmt"
 
diff --git a/conf/init.go b/pkg/config/init.go
similarity index 58%
rename from conf/init.go
rename to pkg/config/init.go
index a95bbab..179f071 100644
--- a/conf/init.go
+++ b/pkg/config/init.go
@@ -1,105 +1,105 @@
-package conf
+package config
 
 import (
+	"encoding/json"
+	clientSet "github.com/gxthrj/apisix-ingress-types/pkg/client/clientset/versioned"
+	"io/ioutil"
+	"k8s.io/client-go/informers"
 	coreinformers "k8s.io/client-go/informers/core/v1"
+	"k8s.io/client-go/kubernetes"
 	restclient "k8s.io/client-go/rest"
-	clientSet "github.com/gxthrj/apisix-ingress-types/pkg/client/clientset/versioned"
-	seven "github.com/gxthrj/seven/conf"
 	"k8s.io/client-go/tools/clientcmd"
-	"k8s.io/client-go/kubernetes"
-	"k8s.io/client-go/informers"
 	"os"
-	"path/filepath"
-	"io/ioutil"
-	"fmt"
-	"github.com/tidwall/gjson"
 	"runtime"
 )
 
 var (
-	ENV      string
-	basePath string
-	ADMIN_URL = os.Getenv("APISIX_ADMIN_INTERNAL")
-	HOSTNAME = os.Getenv("HOSTNAME")
-	LOCAL_ADMIN_URL = ""
-	podInformer coreinformers.PodInformer
-	svcInformer coreinformers.ServiceInformer
-	nsInformer coreinformers.NamespaceInformer
+	_hostname    string
+	config       *restclient.Config
+
+	// Deprecate: will be removed in the near future without notifications.
+	SyslogServer string
+)
+
+func init() {
+	hostname, err := os.Hostname()
+	if err != nil {
+		panic(err)
+	}
+	_hostname = hostname
+}
+
+var (
+	ENV               string
+	basePath          string
+	ADMIN_URL         = os.Getenv("APISIX_ADMIN_INTERNAL")
+	HOSTNAME          = os.Getenv("HOSTNAME")
+	LOCAL_ADMIN_URL   = ""
+	podInformer       coreinformers.PodInformer
+	svcInformer       coreinformers.ServiceInformer
+	nsInformer        coreinformers.NamespaceInformer
 	EndpointsInformer coreinformers.EndpointsInformer
-	IsLeader = false
+	IsLeader          = false
 	//etcdClient client.Client
-	kubeClient kubernetes.Interface
+	kubeClient                kubernetes.Interface
 	CoreSharedInformerFactory informers.SharedInformerFactory
 )
+
 const PROD = "prod"
 const HBPROD = "hb-prod"
 const BETA = "beta"
 const DEV = "dev"
 const TEST = "test"
 const LOCAL = "local"
-const confPath = "/root/ingress-controller/conf.json"
 const AispeechUpstreamKey = "/apisix/customer/upstream/map"
 
-func setEnvironment() {
-	if env := os.Getenv("ENV"); env == "" {
-		ENV = LOCAL
-	} else {
-		ENV = env
-	}
-	_, basePath, _, _ = runtime.Caller(1)
-}
+// Config contains necessary config items for running apisix-ingress-controller.
+type Config struct {
+	Hostname string `json:"-"`
 
-func ConfPath() string {
-	if ENV == LOCAL {
-		return filepath.Join(filepath.Dir(basePath), "conf.json")
-	} else {
-		return confPath
-	}
+	SyslogServer string       `json:"syslog_server"`
+	Kubeconfig   string       `json:"kubeconfig"`
+	Etcd         EtcdConfig   `json:"etcd"`
+	APISIX       APISIXConfig `json:"apisix"`
 }
 
-type etcdConfig struct {
-	Addresses []string
+// EtcdConfig contains config items about etcd.
+type EtcdConfig struct {
+	Endpoints []string `json:"endpoints"`
 }
 
-var EtcdConfig etcdConfig
-var K8sAuth k8sAuth
-var Syslog syslog
-
-var config *restclient.Config
+// APISIXConfig contains config items about apisix.
+type APISIXConfig struct {
+	BaseURL string `json:"base_url"`
+}
 
-func init() {
-	// 获取当前环境
-	setEnvironment()
-	// 获取配置文件路径
-	filePath := ConfPath()
-	// 获取配置文件内容
-	if configurationContent, err := ioutil.ReadFile(filePath); err != nil {
-		panic(fmt.Sprintf("failed to read configuration file: %s", filePath))
-	} else {
-		configuration := gjson.ParseBytes(configurationContent)
-		// apisix baseUrl
-		apisixConf := configuration.Get("conf.apisix")
-		apisixBaseUrl := apisixConf.Get("base_url").String()
-		seven.SetBaseUrl(apisixBaseUrl)
-		// k8sAuth conf
-		k8sAuthConf := configuration.Get("conf.k8sAuth")
-		K8sAuth.file = k8sAuthConf.Get("file").String()
-		// syslog conf
-		syslogConf := configuration.Get("conf.syslog")
-		Syslog.Host = syslogConf.Get("host").String()
+// NewDefaultConfig creates a Config object filled by default value.
+func NewDefaultConfig() *Config {
+	return &Config{
+		Hostname: _hostname,
 	}
-	// init etcd client
-	//etcdClient = NewEtcdClient()
-	// init informer
-	InitInformer()
 }
 
-type k8sAuth struct {
-	file string
+// NewConfigFromFiles creates a Config object and fill it by values in configuration file.
+func NewConfigFromFile(configPath string) (*Config, error) {
+	data, err := ioutil.ReadFile(configPath)
+	if err != nil {
+		return nil, err
+	}
+	conf := NewDefaultConfig()
+	if err := json.Unmarshal(data, conf); err != nil {
+		return nil, err
+	}
+	return conf, nil
 }
 
-type syslog struct {
-	Host string
+func setEnvironment() {
+	if env := os.Getenv("ENV"); env == "" {
+		ENV = LOCAL
+	} else {
+		ENV = env
+	}
+	_, basePath, _, _ = runtime.Caller(1)
 }
 
 //func GetEtcdAPI() client.KeysAPI{
@@ -131,7 +131,7 @@ func GetKubeClient() kubernetes.Interface{
 	return kubeClient
 }
 
-func InitKubeClient() kubernetes.Interface {
+func InitKubeClient() (kubernetes.Interface, error) {
 	//var err error
 	//if ENV == LOCAL {
 	//	clientConfig, err := clientcmd.LoadFromFile(K8sAuth.file)
@@ -145,34 +145,51 @@ func InitKubeClient() kubernetes.Interface {
 	//}
 
 	k8sClient, err := kubernetes.NewForConfig(config)
-	ExceptNilErr(err)
-	return k8sClient
+	if err != nil {
+		return nil, err
+	}
+	return k8sClient, nil
 }
 
-func InitApisixClient() clientSet.Interface{
-	apisixRouteClientset, err:= clientSet.NewForConfig(config)
+func InitApisixClient() clientSet.Interface {
+	apisixRouteClientset, err := clientSet.NewForConfig(config)
 	ExceptNilErr(err)
 	return apisixRouteClientset
 }
 
-func InitInformer() {
+// Deprecate: will be removed in the near future without notification.
+func SetSyslogServer(srv string) {
+	SyslogServer = srv
+}
+
+// InitInformer initializes the Kubernetes API objects informers.
+// Deprecate: will be refactored in the near future without notifications.
+func InitInformer(c *Config) error {
 	// 生成一个k8s client
 	//var config *restclient.Config
 	var err error
-	if ENV == LOCAL {
-		clientConfig, err := clientcmd.LoadFromFile(K8sAuth.file)
-		ExceptNilErr(err)
+	if c.Kubeconfig != "" {
+		clientConfig, err := clientcmd.LoadFromFile(c.Kubeconfig)
+		if err != nil {
+			return err
+		}
 
 		config, err = clientcmd.NewDefaultClientConfig(*clientConfig, &clientcmd.ConfigOverrides{}).ClientConfig()
-		ExceptNilErr(err)
+		if err != nil {
+			return err
+		}
 	} else {
 		config, err = restclient.InClusterConfig()
-		ExceptNilErr(err)
+		if err != nil {
+			return err
+		}
 	}
 
 	//k8sClient, err := kubernetes.NewForConfig(config)
-	kubeClient = InitKubeClient()
-	ExceptNilErr(err)
+	kubeClient, err = InitKubeClient()
+	if err != nil {
+		return err
+	}
 
 	// 创建一个informerFactory
 	//sharedInformerFactory := informers.NewSharedInformerFactory(k8sClient, 0)
@@ -184,6 +201,7 @@ func InitInformer() {
 	svcInformer = CoreSharedInformerFactory.Core().V1().Services()
 	nsInformer = CoreSharedInformerFactory.Core().V1().Namespaces()
 	//return podInformer, svcInformer, nsInformer
+	return nil
 }
 
 func ExceptNilErr(err error)  {
diff --git a/pkg/ingress/controller/endpoint.go b/pkg/ingress/controller/endpoint.go
index e22c07c..c76dc7a 100644
--- a/pkg/ingress/controller/endpoint.go
+++ b/pkg/ingress/controller/endpoint.go
@@ -2,7 +2,11 @@ package controller
 
 import (
 	"fmt"
+	"github.com/api7/ingress-controller/pkg/config"
 	"github.com/golang/glog"
+	apisixType "github.com/gxthrj/apisix-types/pkg/apis/apisix/v1"
+	"github.com/gxthrj/seven/apisix"
+	sevenConf "github.com/gxthrj/seven/conf"
 	"github.com/gxthrj/seven/state"
 	CoreV1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
@@ -12,12 +16,8 @@ import (
 	CoreListerV1 "k8s.io/client-go/listers/core/v1"
 	"k8s.io/client-go/tools/cache"
 	"k8s.io/client-go/util/workqueue"
-	"time"
 	"strconv"
-	"github.com/gxthrj/seven/apisix"
-	sevenConf "github.com/gxthrj/seven/conf"
-	apisixType "github.com/gxthrj/apisix-types/pkg/apis/apisix/v1"
-	"github.com/api7/ingress-controller/conf"
+	"time"
 )
 
 type EndpointController struct {
@@ -29,12 +29,12 @@ type EndpointController struct {
 
 func BuildEndpointController(kubeclientset kubernetes.Interface) *EndpointController {
 	controller := &EndpointController{
-		kubeclientset: kubeclientset,
-		endpointList: conf.EndpointsInformer.Lister(),
-		endpointSynced: conf.EndpointsInformer.Informer().HasSynced,
-		workqueue:     workqueue.NewNamedRateLimitingQueue(workqueue.DefaultControllerRateLimiter(), "endpoints"),
+		kubeclientset:  kubeclientset,
+		endpointList:   config.EndpointsInformer.Lister(),
+		endpointSynced: config.EndpointsInformer.Informer().HasSynced,
+		workqueue:      workqueue.NewNamedRateLimitingQueue(workqueue.DefaultControllerRateLimiter(), "endpoints"),
 	}
-	conf.EndpointsInformer.Informer().AddEventHandler(
+	config.EndpointsInformer.Informer().AddEventHandler(
 		cache.ResourceEventHandlerFuncs{
 			AddFunc:    controller.addFunc,
 			UpdateFunc: controller.updateFunc,
diff --git a/pkg/ingress/controller/watch.go b/pkg/ingress/controller/watch.go
index 7409d41..9c87106 100644
--- a/pkg/ingress/controller/watch.go
+++ b/pkg/ingress/controller/watch.go
@@ -1,14 +1,14 @@
 package controller
 
 import (
-	"github.com/api7/ingress-controller/conf"
-	"k8s.io/api/core/v1"
-	"strconv"
-	"github.com/gxthrj/seven/apisix"
+	"github.com/api7/ingress-controller/pkg/config"
+	"github.com/golang/glog"
 	apisixType "github.com/gxthrj/apisix-types/pkg/apis/apisix/v1"
-	"github.com/gxthrj/seven/state"
+	"github.com/gxthrj/seven/apisix"
 	sevenConf "github.com/gxthrj/seven/conf"
-	"github.com/golang/glog"
+	"github.com/gxthrj/seven/state"
+	"k8s.io/api/core/v1"
+	"strconv"
 )
 
 const (
@@ -22,7 +22,7 @@ func Watch(){
 	c := &controller{
 		queue: make(chan interface{}, 100),
 	}
-	conf.EndpointsInformer.Informer().AddEventHandler(&QueueEventHandler{c:c})
+	config.EndpointsInformer.Informer().AddEventHandler(&QueueEventHandler{c: c})
 	go c.run()
 }
 
diff --git a/pkg/ingress/endpoint/ep.go b/pkg/ingress/endpoint/ep.go
index 2929328..a27ea8e 100644
--- a/pkg/ingress/endpoint/ep.go
+++ b/pkg/ingress/endpoint/ep.go
@@ -1,7 +1,7 @@
 package endpoint
 
 import (
-	"github.com/api7/ingress-controller/conf"
+	"github.com/api7/ingress-controller/pkg/config"
 	"github.com/golang/glog"
 	"github.com/gxthrj/apisix-types/pkg/apis/apisix/v1"
 )
@@ -14,7 +14,7 @@ type EndpointRequest struct {}
 
 func (epr *EndpointRequest) BuildEps(ns, name string, port int) []*v1.Node {
 	nodes := make([]*v1.Node, 0)
-	epInformers := conf.EndpointsInformer
+	epInformers := config.EndpointsInformer
 	if ep, err := epInformers.Lister().Endpoints(ns).Get(name); err != nil {
 		glog.Errorf("find endpoint %s/%s err", ns, name, err.Error())
 	} else {
@@ -33,7 +33,7 @@ func (epr *EndpointRequest) BuildEps(ns, name string, port int) []*v1.Node {
 // BuildEps build nodes from endpoints for upstream
 func BuildEps(ns, name string, port int) []*v1.Node{
 	nodes := make([]*v1.Node, 0)
-	epInformers := conf.EndpointsInformer
+	epInformers := config.EndpointsInformer
 	if ep, err := epInformers.Lister().Endpoints(ns).Get(name); err != nil {
 		glog.Errorf("find endpoint %s/%s err", ns, name, err.Error())
 	} else {
diff --git a/pkg/scheduler.go b/pkg/scheduler.go
index 5267baf..3ad49fe 100644
--- a/pkg/scheduler.go
+++ b/pkg/scheduler.go
@@ -1,13 +1,13 @@
 package pkg
 
 import (
-	"github.com/api7/ingress-controller/conf"
-	"k8s.io/apimachinery/pkg/labels"
+	"github.com/api7/ingress-controller/pkg/config"
 	"k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/labels"
 )
 
 func ListPods(m map[string]string) ([]*v1.Pod, error){
-	podInformer := conf.GetPodInformer()
+	podInformer := config.GetPodInformer()
 	selector := labels.Set(m).AsSelector()
 	ret, err := podInformer.Lister().List(selector)
 	for _, pod := range ret {
@@ -17,7 +17,7 @@ func ListPods(m map[string]string) ([]*v1.Pod, error){
 }
 
 func ListPodsBySvcName(name string) []*v1.Pod {
-	svcInformer := conf.GetSvcInformer()
+	svcInformer := config.GetSvcInformer()
 	selector := labels.NewSelector()
 	ret, _ := svcInformer.Lister().List(selector)
 	for _, svc := range ret {
diff --git a/pkg/utils/utils.go b/pkg/utils/utils.go
new file mode 100644
index 0000000..121c400
--- /dev/null
+++ b/pkg/utils/utils.go
@@ -0,0 +1,23 @@
+package utils
+
+import (
+	"fmt"
+	"os"
+	"strings"
+)
+
+// Dief renders the template string with provided args, outputs it to stderr and
+// exits the program with code 1.
+func Dief(template string, args ...interface{}) {
+	if !strings.HasSuffix(template, "\n") {
+		template += "\n"
+	}
+	fmt.Fprintf(os.Stderr, template, args...)
+	os.Exit(1)
+}
+
+// Die outputs the provided args to stderr and exits the program with code 1.
+func Die(args ...interface{}) {
+	fmt.Fprintln(os.Stderr, args...)
+	os.Exit(1)
+}
\ No newline at end of file