diff --git a/Makefile b/Makefile
index f535565..4f12258 100644
--- a/Makefile
+++ b/Makefile
@@ -45,16 +45,19 @@
 # Generate manifests e.g. CRD, RBAC etc.
 manifests: controller-gen
 	$(CONTROLLER_GEN) $(CRD_OPTIONS) rbac:roleName=manager-role webhook paths="./..." output:crd:artifacts:config=config/crd/bases
+	 go run github.com/skywalking-swck/cmd/build license insert config
 
 # Generate code
 generate: controller-gen
 	$(CONTROLLER_GEN) object:headerFile="hack/boilerplate.go.txt" paths="./..."
+	$(MAKE) format
 
 GO_LICENSER := $(GOBIN)/go-licenser
 $(GO_LICENSER):
 	GO111MODULE=off go get -u github.com/elastic/go-licenser
-license: clean $(GO_LICENSER)
+license: $(GO_LICENSER)
 	$(GO_LICENSER) -d -licensor='Apache Software Foundation (ASF)' -exclude=api/v1alpha1/zz_generated* .
+	go run github.com/skywalking-swck/cmd/build license check config
 
 # Build the docker image
 docker-build: test
@@ -91,7 +94,7 @@
 	@goimports -w -local github.com/skywalking-swck .
 
 ## Check that the status is consistent with CI.
-check: clean generate manifests
+check: generate manifests license
 	$(MAKE) format
 	mkdir -p /tmp/artifacts
 	git diff >/tmp/artifacts/check.diff 2>&1
diff --git a/cmd/build/main.go b/cmd/build/main.go
new file mode 100644
index 0000000..c507149
--- /dev/null
+++ b/cmd/build/main.go
@@ -0,0 +1,66 @@
+// Licensed to 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. Apache Software Foundation (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.
+
+package main
+
+import (
+	"io"
+	"os"
+
+	"github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+
+	"github.com/skywalking-swck/pkg/build"
+)
+
+const (
+	cliName = "swck-build-tool"
+)
+
+func main() {
+	//The verbose flag value
+	var v string
+	cmd := &cobra.Command{
+		Short:        cliName,
+		Long:         "SWCK build tool chain",
+		SilenceUsage: true,
+		PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
+			if err := setUpLogs(os.Stdout, v); err != nil {
+				return err
+			}
+			return nil
+		},
+	}
+	cmd.PersistentFlags().StringVarP(&v, "verbosity", "v", logrus.InfoLevel.String(), "Log level (debug, info, warn, error, fatal, panic")
+	cmd.Use = cliName
+	cmd.AddCommand(build.NewLicense())
+
+	if err := cmd.Execute(); err != nil {
+		os.Exit(1)
+	}
+}
+
+//setUpLogs set the log output ans the log level
+func setUpLogs(out io.Writer, level string) error {
+	logrus.SetOutput(out)
+	lvl, err := logrus.ParseLevel(level)
+	if err != nil {
+		return err
+	}
+	logrus.SetLevel(lvl)
+	return nil
+}
diff --git a/config/crd/bases/operator.skywalking.apache.org_oapservers.yaml b/config/crd/bases/operator.skywalking.apache.org_oapservers.yaml
index 72a5d6a..4da30d2 100644
--- a/config/crd/bases/operator.skywalking.apache.org_oapservers.yaml
+++ b/config/crd/bases/operator.skywalking.apache.org_oapservers.yaml
@@ -1,3 +1,20 @@
+# Licensed to 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. Apache Software Foundation (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.
+
 
 ---
 apiVersion: apiextensions.k8s.io/v1beta1
@@ -233,3 +250,4 @@
     plural: ""
   conditions: []
   storedVersions: []
+
diff --git a/config/crd/kustomization.yaml b/config/crd/kustomization.yaml
index b391b8e..92c181a 100644
--- a/config/crd/kustomization.yaml
+++ b/config/crd/kustomization.yaml
@@ -1,3 +1,20 @@
+# Licensed to 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. Apache Software Foundation (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.
+
 # This kustomization.yaml is not intended to be run by itself,
 # since it depends on service name and namespace that are out of this kustomize package.
 # It should be run by config/default
diff --git a/config/crd/kustomizeconfig.yaml b/config/crd/kustomizeconfig.yaml
index 6f83d9a..a9ec1ed 100644
--- a/config/crd/kustomizeconfig.yaml
+++ b/config/crd/kustomizeconfig.yaml
@@ -1,3 +1,20 @@
+# Licensed to 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. Apache Software Foundation (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.
+
 # This file is for teaching kustomize how to substitute name and namespace reference in CRD
 nameReference:
 - kind: Service
diff --git a/config/crd/patches/cainjection_in_oapservers.yaml b/config/crd/patches/cainjection_in_oapservers.yaml
index 17e24cf..6f20cba 100644
--- a/config/crd/patches/cainjection_in_oapservers.yaml
+++ b/config/crd/patches/cainjection_in_oapservers.yaml
@@ -1,3 +1,20 @@
+# Licensed to 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. Apache Software Foundation (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.
+
 # The following patch adds a directive for certmanager to inject CA into the CRD
 # CRD conversion requires k8s 1.13 or later.
 apiVersion: apiextensions.k8s.io/v1beta1
diff --git a/config/crd/patches/webhook_in_oapservers.yaml b/config/crd/patches/webhook_in_oapservers.yaml
index b1846c1..ff6b69d 100644
--- a/config/crd/patches/webhook_in_oapservers.yaml
+++ b/config/crd/patches/webhook_in_oapservers.yaml
@@ -1,3 +1,20 @@
+# Licensed to 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. Apache Software Foundation (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.
+
 # The following patch enables conversion webhook for CRD
 # CRD conversion requires k8s 1.13 or later.
 apiVersion: apiextensions.k8s.io/v1beta1
diff --git a/config/manager/manager.yaml b/config/manager/manager.yaml
index b6c85a5..2eb0b50 100644
--- a/config/manager/manager.yaml
+++ b/config/manager/manager.yaml
@@ -1,3 +1,20 @@
+# Licensed to 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. Apache Software Foundation (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.
+
 apiVersion: v1
 kind: Namespace
 metadata:
diff --git a/config/rbac/auth_proxy_service.yaml b/config/rbac/auth_proxy_service.yaml
index 6cf656b..004cea6 100644
--- a/config/rbac/auth_proxy_service.yaml
+++ b/config/rbac/auth_proxy_service.yaml
@@ -1,3 +1,20 @@
+# Licensed to 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. Apache Software Foundation (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.
+
 apiVersion: v1
 kind: Service
 metadata:
diff --git a/config/rbac/role.yaml b/config/rbac/role.yaml
index 491934b..bde338f 100644
--- a/config/rbac/role.yaml
+++ b/config/rbac/role.yaml
@@ -1,3 +1,20 @@
+# Licensed to 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. Apache Software Foundation (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.
+
 
 ---
 apiVersion: rbac.authorization.k8s.io/v1
@@ -38,3 +55,4 @@
   - get
   - patch
   - update
+
diff --git a/config/samples/oap.yaml b/config/samples/oap.yaml
index 8afe021..f965e63 100644
--- a/config/samples/oap.yaml
+++ b/config/samples/oap.yaml
@@ -1,3 +1,20 @@
+# Licensed to 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. Apache Software Foundation (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.
+
 apiVersion: operator.skywalking.apache.org/v1alpha1
 kind: OAPServer
 metadata:
diff --git a/config/webhook/manifests.yaml b/config/webhook/manifests.yaml
deleted file mode 100644
index e69de29..0000000
--- a/config/webhook/manifests.yaml
+++ /dev/null
diff --git a/go.mod b/go.mod
index eee19ae..3103591 100644
--- a/go.mod
+++ b/go.mod
@@ -7,6 +7,8 @@
 	github.com/go-logr/logr v0.1.0
 	github.com/onsi/ginkgo v1.11.0
 	github.com/onsi/gomega v1.8.1
+	github.com/sirupsen/logrus v1.4.2
+	github.com/spf13/cobra v0.0.5
 	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
 	k8s.io/api v0.17.2
 	k8s.io/apimachinery v0.17.2
diff --git a/go.sum b/go.sum
index 927fb70..7dca6c7 100644
--- a/go.sum
+++ b/go.sum
@@ -167,6 +167,7 @@
 github.com/imdario/mergo v0.3.5/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
 github.com/imdario/mergo v0.3.6 h1:xTNEAn+kxVO7dTZGu0CegyqKZmoWFI0rF8UxjlB2d28=
 github.com/imdario/mergo v0.3.6/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
+github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
 github.com/json-iterator/go v0.0.0-20180612202835-f2b4162afba3/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
@@ -180,6 +181,7 @@
 github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
 github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
@@ -250,12 +252,14 @@
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
 github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
+github.com/sirupsen/logrus v1.4.2 h1:SPIRibHv4MatM3XXNO2BJeFLZwZ2LvZgfQ5+UNI2im4=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/soheilhy/cmux v0.1.4/go.mod h1:IM3LyeVVIOuxMH7sFAkER9+bJ4dT7Ms6E4xg4kGIyLM=
 github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
 github.com/spf13/afero v1.2.2/go.mod h1:9ZxEEn6pIJ8Rxe320qSDBk6AsU0r9pR7Q4OcevTdifk=
 github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
 github.com/spf13/cobra v0.0.3/go.mod h1:1l0Ry5zgKvJasoi3XT1TypsSe7PqH0Sj9dhYf7v3XqQ=
+github.com/spf13/cobra v0.0.5 h1:f0B+LkLX6DtmRH1isoNA9VTtNUK9K8xYd28JNNfOv/s=
 github.com/spf13/cobra v0.0.5/go.mod h1:3K3wKZymM7VvHMDS9+Akkh4K60UwM26emMESw8tLCHU=
 github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
 github.com/spf13/pflag v0.0.0-20170130214245-9ff6c6923cff/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
diff --git a/pkg/build/license.go b/pkg/build/license.go
new file mode 100644
index 0000000..fd17c7e
--- /dev/null
+++ b/pkg/build/license.go
@@ -0,0 +1,168 @@
+// Licensed to 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. Apache Software Foundation (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.
+
+package build
+
+import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+
+	l "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+const yamlHeader = `# Licensed to 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. Apache Software Foundation (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.
+
+`
+
+func NewLicense() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "license",
+		Short: "Apply license header to generated manifests",
+	}
+	cmd.AddCommand(newInsert())
+	cmd.AddCommand(newCheck())
+	return cmd
+}
+
+func newInsert() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "insert",
+		Short: "Insert license header to generated manifests",
+		RunE: func(cmd *cobra.Command, args []string) (err error) {
+			if len(args) < 1 || args[0] == "" {
+				return fmt.Errorf("lack the path in args")
+			}
+			dir, err := os.Getwd()
+			if err != nil {
+				return fmt.Errorf("failed to get present directory: %w", err)
+			}
+			w := filepath.Join(dir, args[0])
+			l.Info("working directory: %s", w)
+
+			err = filepath.Walk(w,
+				func(path string, info os.FileInfo, err error) error {
+					if err != nil {
+						return err
+					}
+					l.Debugf("path: %s", path)
+					if info.IsDir() {
+						return nil
+					}
+					insertHeader(path)
+					return nil
+				})
+			if err != nil {
+				return fmt.Errorf("failed to process files: %w", err)
+			}
+			return nil
+		},
+	}
+	return cmd
+}
+
+func newCheck() *cobra.Command {
+
+	cmd := &cobra.Command{
+		Use:   "check",
+		Short: "Check yaml files licenses",
+		RunE: func(cmd *cobra.Command, args []string) (err error) {
+			if len(args) < 1 || args[0] == "" {
+				return fmt.Errorf("lack the path in args")
+			}
+			dir, err := os.Getwd()
+			if err != nil {
+				return fmt.Errorf("failed to get present directory: %w", err)
+			}
+			w := filepath.Join(dir, args[0])
+			l.Info("working directory: %s", w)
+
+			err = filepath.Walk(w,
+				func(path string, info os.FileInfo, err error) error {
+					if err != nil {
+						return err
+					}
+					l.Debugf("path: %s", path)
+					if info.IsDir() {
+						return nil
+					}
+					data, err := ioutil.ReadFile(path)
+					if err != nil {
+						l.Errorf("failed to read data from file ", path, err)
+					}
+					if checkHeader(data) {
+						return nil
+					}
+					return fmt.Errorf("failed to check %s", path)
+				})
+			if err != nil {
+				return fmt.Errorf("failed to process files: %w", err)
+			}
+			return nil
+		},
+	}
+	return cmd
+}
+
+func insertHeader(path string) {
+	l.Debugf("============Processing file %s================", path)
+	var buff bytes.Buffer
+	data, err := ioutil.ReadFile(path)
+	if err != nil {
+		l.Errorf("failed to read data from file ", path, err)
+	}
+	if checkHeader(data) {
+		return
+	}
+
+	if _, err = buff.WriteString(yamlHeader); err != nil {
+		l.Errorf("failed to write header to %s", path, err)
+	}
+	if _, err = buff.Write(append(data, '\n')); err != nil {
+		l.Errorf("failed to write content to %s", path, err)
+	}
+	if err = ioutil.WriteFile(path, buff.Bytes(), os.ModePerm); err != nil {
+		l.Errorf("failed to update %s", path, err)
+	}
+	l.Info("updated %s", path)
+}
+
+func checkHeader(data []byte) bool {
+	if strings.Index(string(data), "Apache Software Foundation (ASF)") > -1 {
+		return true
+	}
+	return false
+}