diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
index da15b0fc0..b13913e96 100644
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -21,7 +21,7 @@ assignees: ''
 
 **Security disclosures**
 
-If you think you’ve found a potential security issue, please do not post it in the Issues.  Instead, please email [Prabhat Sharma](mailto:admin+security@zinclabs.io).
+If you think you’ve found a potential security issue, please do not post it in the Issues.  Instead, please email [Zinc team](mailto:admin+security@zinclabs.io).
 
 -->
 
diff --git a/.goreleaser.yml b/.goreleaser.yml
index 638120625..71c565503 100644
--- a/.goreleaser.yml
+++ b/.goreleaser.yml
@@ -50,7 +50,7 @@ changelog:
       - "^test:"
 dockers:
   - image_templates:
-      - public.ecr.aws/h9e2j3o7/zinc:{{ .Version }}-amd64
+      - public.ecr.aws/zinclabs/zinc:{{ .Version }}-amd64
     use: buildx
     skip_push: "false"
     build_flag_templates:
@@ -66,7 +66,7 @@ dockers:
       - web
       - embed.go
   - image_templates:
-      - public.ecr.aws/h9e2j3o7/zinc:{{ .Version }}-arm64
+      - public.ecr.aws/zinclabs/zinc:{{ .Version }}-arm64
     use: buildx
     skip_push: "false"
     build_flag_templates:
@@ -82,7 +82,7 @@ dockers:
       - web
       - embed.go
   - image_templates:
-      - public.ecr.aws/h9e2j3o7/zinc:{{ .Version }}-armv7 
+      - public.ecr.aws/zinclabs/zinc:{{ .Version }}-armv7 
     use: buildx
     skip_push: "false"
     build_flag_templates:
@@ -98,7 +98,7 @@ dockers:
       - web
       - embed.go
   - image_templates:
-      - public.ecr.aws/h9e2j3o7/zinc:latest-amd64
+      - public.ecr.aws/zinclabs/zinc:latest-amd64
     use: buildx
     skip_push: "false"
     build_flag_templates:
@@ -114,7 +114,7 @@ dockers:
       - web
       - embed.go
   - image_templates:
-      - public.ecr.aws/h9e2j3o7/zinc:latest-arm64
+      - public.ecr.aws/zinclabs/zinc:latest-arm64
     use: buildx
     skip_push: "false"
     build_flag_templates:
@@ -130,7 +130,7 @@ dockers:
       - web
       - embed.go
   - image_templates:
-      - public.ecr.aws/h9e2j3o7/zinc:latest-armv7 
+      - public.ecr.aws/zinclabs/zinc:latest-armv7 
     use: buildx
     skip_push: "false"
     build_flag_templates:
@@ -150,26 +150,26 @@ docker_manifests:
 
   # Name template for the manifest.
   # Defaults to empty.
-  name_template: public.ecr.aws/h9e2j3o7/zinc:{{ .Version }}
+  name_template: public.ecr.aws/zinclabs/zinc:{{ .Version }}
 
   # Image name templates to be added to this manifest.
   # Defaults to empty.
   image_templates:
-  - public.ecr.aws/h9e2j3o7/zinc:{{ .Version }}-amd64
-  - public.ecr.aws/h9e2j3o7/zinc:{{ .Version }}-arm64
-  - public.ecr.aws/h9e2j3o7/zinc:{{ .Version }}-armv7
+  - public.ecr.aws/zinclabs/zinc:{{ .Version }}-amd64
+  - public.ecr.aws/zinclabs/zinc:{{ .Version }}-arm64
+  - public.ecr.aws/zinclabs/zinc:{{ .Version }}-armv7
 - id: zinc-latest
 
   # Name template for the manifest.
   # Defaults to empty.
-  name_template: public.ecr.aws/h9e2j3o7/zinc:latest
+  name_template: public.ecr.aws/zinclabs/zinc:latest
 
   # Image name templates to be added to this manifest.
   # Defaults to empty.
   image_templates:
-  - public.ecr.aws/h9e2j3o7/zinc:latest-amd64
-  - public.ecr.aws/h9e2j3o7/zinc:latest-arm64
-  - public.ecr.aws/h9e2j3o7/zinc:latest-armv7
+  - public.ecr.aws/zinclabs/zinc:latest-amd64
+  - public.ecr.aws/zinclabs/zinc:latest-arm64
+  - public.ecr.aws/zinclabs/zinc:latest-armv7
 # https://goreleaser.com/customization/homebrew/
 brews:
   - name: zinc
diff --git a/COPYRIGHT b/COPYRIGHT
new file mode 100644
index 000000000..a360bc017
--- /dev/null
+++ b/COPYRIGHT
@@ -0,0 +1,13 @@
+Copyright 2022 Zinc Labs Inc. and Contributors
+
+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.
\ No newline at end of file
diff --git a/buildspec.yml b/buildspec.yml
index 5c7ad0082..97c9dcbd2 100644
--- a/buildspec.yml
+++ b/buildspec.yml
@@ -5,7 +5,7 @@ phases:
     commands:
       
       - echo Logging in to Amazon ECR...
-      - aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin public.ecr.aws/h9e2j3o7
+      - aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin public.ecr.aws/zinclabs
       # Install AWS CLI
       # - curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
       # - unzip awscliv2.zip
diff --git a/cmd/zinc/main.go b/cmd/zinc/main.go
index 4cad332b8..a0fd2fa21 100644
--- a/cmd/zinc/main.go
+++ b/cmd/zinc/main.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 (
@@ -20,15 +35,17 @@ import (
 
 func main() {
 
-	/******** initialize sentry **********/
-	err := sentry.Init(sentry.ClientOptions{
-		Dsn:     "https://15b6d9b8be824b44896f32b0234c32b7@o1218932.ingest.sentry.io/6360942",
-		Release: "zinc@" + v1.Version,
-	})
-	if err != nil {
-		log.Print("sentry.Init: %s", err)
+	if zutils.GetEnvToBool("ZINC_SENTRY", "true") {
+		/******** initialize sentry **********/
+		err := sentry.Init(sentry.ClientOptions{
+			Dsn:     "https://15b6d9b8be824b44896f32b0234c32b7@o1218932.ingest.sentry.io/6360942",
+			Release: "zinc@" + v1.Version,
+		})
+		if err != nil {
+			log.Print("sentry.Init: %s", err)
+		}
+		/******** sentry initialize complete *******/
 	}
-	/******** sentry initialize complete *******/
 
 	r := gin.New()
 	// Recovery middleware recovers from any panics and writes a 500 if there was one.
@@ -51,7 +68,7 @@ func main() {
 			ctx, cancel := context.WithTimeout(context.Background(), time.Second*60)
 			defer cancel()
 			if err := server.Shutdown(ctx); err != nil {
-				log.Fatal().Msgf("Server Shutdown:", err)
+				log.Fatal().Msgf("Server Shutdown: %s", err.Error())
 			}
 		} else {
 			server.Close()
@@ -62,7 +79,7 @@ func main() {
 		if err == http.ErrServerClosed {
 			log.Info().Msgf("Server closed under request")
 		} else {
-			log.Fatal().Msgf("Server closed unexpect")
+			log.Fatal().Msgf("Server closed unexpect: %s", err.Error())
 		}
 	}
 
diff --git a/embed.go b/embed.go
index 106445b0b..9ecdcf65a 100644
--- a/embed.go
+++ b/embed.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 zinc
 
 import (
diff --git a/embed_test.go b/embed_test.go
index 6158a5276..19e26e27f 100644
--- a/embed_test.go
+++ b/embed_test.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 zinc
 
 import (
diff --git a/go.mod b/go.mod
index 2d822bfb5..75ec12595 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/zinclabs/zinc
 
-go 1.18
+go 1.17
 
 require (
 	github.com/aws/aws-sdk-go-v2/config v1.11.0
@@ -62,14 +62,12 @@ require (
 	github.com/go-playground/validator/v10 v10.4.1 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/golang/snappy v0.0.3 // indirect
-	github.com/google/go-cmp v0.5.7 // indirect
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/jtolds/gls v4.20.0+incompatible // indirect
 	github.com/klauspost/compress v1.13.5 // indirect
 	github.com/klauspost/cpuid v1.3.1 // indirect
-	github.com/kr/pretty v0.3.0 // indirect
 	github.com/leodido/go-urn v1.2.0 // indirect
 	github.com/mattn/go-isatty v0.0.14 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
@@ -87,7 +85,6 @@ require (
 	github.com/segmentio/backo-go v1.0.0 // indirect
 	github.com/sirupsen/logrus v1.8.1 // indirect
 	github.com/smartystreets/assertions v1.2.0 // indirect
-	github.com/stretchr/testify v1.6.1 // indirect
 	github.com/tklauser/go-sysconf v0.3.9 // indirect
 	github.com/tklauser/numcpus v0.3.0 // indirect
 	github.com/ugorji/go/codec v1.1.7 // indirect
diff --git a/helm/zinc/values.yaml b/helm/zinc/values.yaml
index 300113653..e9743254e 100644
--- a/helm/zinc/values.yaml
+++ b/helm/zinc/values.yaml
@@ -3,7 +3,7 @@
 # Declare variables to be passed into your templates.
 
 image:
-  repository: public.ecr.aws/prabhat/zinc
+  repository: public.ecr.aws/h9e2j3o7/zinc
   pullPolicy: IfNotPresent
   # Overrides the image tag whose default is the chart appVersion.
   tag: "latest"
diff --git a/k8s/ingest-fluent-bit.yaml b/k8s/ingest-fluent-bit.yaml
new file mode 100644
index 000000000..a0483330e
--- /dev/null
+++ b/k8s/ingest-fluent-bit.yaml
@@ -0,0 +1,116 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: fluent-bit-config
+  namespace: logging
+  labels:
+    k8s-app: fluent-bit
+data:
+  # Configuration files: server, input, filters and output
+  # ======================================================
+  fluent-bit.conf: |
+    [SERVICE]
+        Flush         1
+        Log_Level     info
+        Daemon        off
+        Parsers_File  parsers.conf
+        HTTP_Server   On
+        HTTP_Listen   0.0.0.0
+        HTTP_Port     2020
+
+    @INCLUDE input-kubernetes.conf
+    @INCLUDE filter-kubernetes.conf
+    @INCLUDE output-elasticsearch.conf
+
+  input-kubernetes.conf: |
+    [INPUT]
+        Name              tail
+        Tag               kube.*
+        Path              /var/log/containers/*.log
+        Parser            docker
+        DB                /var/log/flb_kube.db
+        Mem_Buf_Limit     5MB
+        Skip_Long_Lines   On
+        Refresh_Interval  10
+
+  filter-kubernetes.conf: |
+    [FILTER]
+        Name                kubernetes
+        Match               kube.*
+        Kube_URL            https://kubernetes.default.svc:443
+        Kube_CA_File        /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
+        Kube_Token_File     /var/run/secrets/kubernetes.io/serviceaccount/token
+        Kube_Tag_Prefix     kube.var.log.containers.
+        Merge_Log           On
+        Merge_Log_Key       log_processed
+        K8S-Logging.Parser  On
+        K8S-Logging.Exclude Off
+
+  output-elasticsearch.conf: |
+    [OUTPUT]
+        Name  es
+        Match *
+        Path /es
+        Host z.zinc.svc.cluster.local
+        Port 4080
+        Generate_ID On
+        HTTP_User admin
+        HTTP_Passwd Complexpass#123
+        Logstash_Format On
+        Logstash_Prefix k8s-logs
+        Logstash_DateFormat %Y.%m.%d
+
+  parsers.conf: |
+    [PARSER]
+        Name   apache
+        Format regex
+        Regex  ^(?<host>[^ ]*) [^ ]* (?<user>[^ ]*) \[(?<time>[^\]]*)\] "(?<method>\S+)(?: +(?<path>[^\"]*?)(?: +\S*)?)?" (?<code>[^ ]*) (?<size>[^ ]*)(?: "(?<referer>[^\"]*)" "(?<agent>[^\"]*)")?$
+        Time_Key time
+        Time_Format %d/%b/%Y:%H:%M:%S %z
+
+    [PARSER]
+        Name   apache2
+        Format regex
+        Regex  ^(?<host>[^ ]*) [^ ]* (?<user>[^ ]*) \[(?<time>[^\]]*)\] "(?<method>\S+)(?: +(?<path>[^ ]*) +\S*)?" (?<code>[^ ]*) (?<size>[^ ]*)(?: "(?<referer>[^\"]*)" "(?<agent>[^\"]*)")?$
+        Time_Key time
+        Time_Format %d/%b/%Y:%H:%M:%S %z
+
+    [PARSER]
+        Name   apache_error
+        Format regex
+        Regex  ^\[[^ ]* (?<time>[^\]]*)\] \[(?<level>[^\]]*)\](?: \[pid (?<pid>[^\]]*)\])?( \[client (?<client>[^\]]*)\])? (?<message>.*)$
+
+    [PARSER]
+        Name   nginx
+        Format regex
+        Regex ^(?<remote>[^ ]*) (?<host>[^ ]*) (?<user>[^ ]*) \[(?<time>[^\]]*)\] "(?<method>\S+)(?: +(?<path>[^\"]*?)(?: +\S*)?)?" (?<code>[^ ]*) (?<size>[^ ]*)(?: "(?<referer>[^\"]*)" "(?<agent>[^\"]*)")?$
+        Time_Key time
+        Time_Format %d/%b/%Y:%H:%M:%S %z
+
+    [PARSER]
+        Name   json
+        Format json
+        Time_Key time
+        Time_Format %d/%b/%Y:%H:%M:%S %z
+
+    [PARSER]
+        Name        docker
+        Format      json
+        Time_Key    time
+        Time_Format %Y-%m-%dT%H:%M:%S.%L
+        Time_Keep   On
+
+    [PARSER]
+        # http://rubular.com/r/tjUt3Awgg4
+        Name cri
+        Format regex
+        Regex ^(?<time>[^ ]+) (?<stream>stdout|stderr) (?<logtag>[^ ]*) (?<message>.*)$
+        Time_Key    time
+        Time_Format %Y-%m-%dT%H:%M:%S.%L%z
+
+    [PARSER]
+        Name        syslog
+        Format      regex
+        Regex       ^\<(?<pri>[0-9]+)\>(?<time>[^ ]* {1,2}[^ ]* [^ ]*) (?<host>[^ ]*) (?<ident>[a-zA-Z0-9_\/\.\-]*)(?:\[(?<pid>[0-9]+)\])?(?:[^\:]*\:)? *(?<message>.*)$
+        Time_Key    time
+        Time_Format %b %d %H:%M:%S
diff --git a/k8s/kube-deployment.yaml b/k8s/kube-deployment.yaml
index 38ce2a653..d5f98c58d 100644
--- a/k8s/kube-deployment.yaml
+++ b/k8s/kube-deployment.yaml
@@ -43,7 +43,7 @@ spec:
       # terminationGracePeriodSeconds: 0
       containers:
         - name: zinc
-          image: public.ecr.aws/h9e2j3o7/zinc:latest
+          image: public.ecr.aws/zinclabs/zinc:latest
           env:
             - name: ZINC_FIRST_ADMIN_USER
               value: admin
diff --git a/multiarch.sh b/multiarch.sh
index fe82da2c6..9f52e42bf 100755
--- a/multiarch.sh
+++ b/multiarch.sh
@@ -1,9 +1,9 @@
 #/bin/sh
 
-aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin public.ecr.aws/h9e2j3o7
+aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin public.ecr.aws/zinclabs
 
-# docker buildx build --push --platform linux/arm/v7,linux/arm64/v8,linux/amd64 --tag public.ecr.aws/h9e2j3o7/zinc:v0.1.3-s3test .
+# docker buildx build --push --platform linux/arm/v7,linux/arm64/v8,linux/amd64 --tag public.ecr.aws/zinclabs/zinc:v0.1.3-s3test .
 
-docker buildx build --push --platform linux/amd64 --tag public.ecr.aws/h9e2j3o7/zinc:v0.1.3-s3test .
+docker buildx build --push --platform linux/amd64 --tag public.ecr.aws/zinclabs/zinc:v0.1.3-s3test .
 
 
diff --git a/pkg/auth/authmiddleware.go b/pkg/auth/authmiddleware.go
index 7ac2b2f85..4e4a71510 100644
--- a/pkg/auth/authmiddleware.go
+++ b/pkg/auth/authmiddleware.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 auth
 
 import (
diff --git a/pkg/auth/createuser.go b/pkg/auth/createuser.go
index c700d3c41..934b1f6eb 100644
--- a/pkg/auth/createuser.go
+++ b/pkg/auth/createuser.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 auth
 
 import (
diff --git a/pkg/auth/deleteuser.go b/pkg/auth/deleteuser.go
index 9a4b81eca..b5cc0710a 100644
--- a/pkg/auth/deleteuser.go
+++ b/pkg/auth/deleteuser.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 auth
 
 import (
diff --git a/pkg/auth/firststart.go b/pkg/auth/firststart.go
index 3b7f79142..15b77a0d2 100644
--- a/pkg/auth/firststart.go
+++ b/pkg/auth/firststart.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 auth
 
 import (
diff --git a/pkg/auth/getuser.go b/pkg/auth/getuser.go
index a221ecd65..d22be4c25 100644
--- a/pkg/auth/getuser.go
+++ b/pkg/auth/getuser.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 auth
 
 import (
diff --git a/pkg/auth/getusers.go b/pkg/auth/getusers.go
index 4c40b405c..761d3a791 100644
--- a/pkg/auth/getusers.go
+++ b/pkg/auth/getusers.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 auth
 
 import (
diff --git a/pkg/bluge/aggregation/aggregation.go b/pkg/bluge/aggregation/aggregation.go
index 35351eda3..c83849cc3 100644
--- a/pkg/bluge/aggregation/aggregation.go
+++ b/pkg/bluge/aggregation/aggregation.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 aggregation
 
 import "github.com/blugelabs/bluge/search"
diff --git a/pkg/bluge/aggregation/auto_date_histogram.go b/pkg/bluge/aggregation/auto_date_histogram.go
index f96eee787..d06fb9772 100644
--- a/pkg/bluge/aggregation/auto_date_histogram.go
+++ b/pkg/bluge/aggregation/auto_date_histogram.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 aggregation
 
 import (
diff --git a/pkg/bluge/aggregation/date_histogram.go b/pkg/bluge/aggregation/date_histogram.go
index e5b109cb0..50eac7728 100644
--- a/pkg/bluge/aggregation/date_histogram.go
+++ b/pkg/bluge/aggregation/date_histogram.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 aggregation
 
 import (
diff --git a/pkg/bluge/aggregation/histogram.go b/pkg/bluge/aggregation/histogram.go
index 5a13f6279..00082c430 100644
--- a/pkg/bluge/aggregation/histogram.go
+++ b/pkg/bluge/aggregation/histogram.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 aggregation
 
 import (
diff --git a/pkg/bluge/aggregation/terms.go b/pkg/bluge/aggregation/terms.go
index 08580b008..30e9d316f 100644
--- a/pkg/bluge/aggregation/terms.go
+++ b/pkg/bluge/aggregation/terms.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 aggregation
 
 import (
diff --git a/pkg/bluge/analysis/char/mapping.go b/pkg/bluge/analysis/char/mapping.go
index 4845accda..abf005987 100644
--- a/pkg/bluge/analysis/char/mapping.go
+++ b/pkg/bluge/analysis/char/mapping.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 char
 
 import (
diff --git a/pkg/bluge/analysis/lang/bn/stop_words_bn.go b/pkg/bluge/analysis/lang/bn/stop_words_bn.go
index 2d61ae74f..d32190396 100644
--- a/pkg/bluge/analysis/lang/bn/stop_words_bn.go
+++ b/pkg/bluge/analysis/lang/bn/stop_words_bn.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 bn
 
 import (
diff --git a/pkg/bluge/analysis/lang/br/stop_words_br.go b/pkg/bluge/analysis/lang/br/stop_words_br.go
index dd72eaa54..d89e391a3 100644
--- a/pkg/bluge/analysis/lang/br/stop_words_br.go
+++ b/pkg/bluge/analysis/lang/br/stop_words_br.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 br
 
 import (
diff --git a/pkg/bluge/analysis/lang/chs/analyzer/search.go b/pkg/bluge/analysis/lang/chs/analyzer/search.go
index 26434e1c1..f8f405886 100644
--- a/pkg/bluge/analysis/lang/chs/analyzer/search.go
+++ b/pkg/bluge/analysis/lang/chs/analyzer/search.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 analyzer
 
 import (
diff --git a/pkg/bluge/analysis/lang/chs/analyzer/standard.go b/pkg/bluge/analysis/lang/chs/analyzer/standard.go
index f2dcefe25..9575960ca 100644
--- a/pkg/bluge/analysis/lang/chs/analyzer/standard.go
+++ b/pkg/bluge/analysis/lang/chs/analyzer/standard.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 analyzer
 
 import (
diff --git a/pkg/bluge/analysis/lang/chs/gse.go b/pkg/bluge/analysis/lang/chs/gse.go
index 835567aec..4f8a99761 100644
--- a/pkg/bluge/analysis/lang/chs/gse.go
+++ b/pkg/bluge/analysis/lang/chs/gse.go
@@ -1,8 +1,21 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 chs
 
 import (
-	"strings"
-
 	"github.com/blugelabs/bluge/analysis"
 	"github.com/go-ego/gse"
 
@@ -35,9 +48,9 @@ var seg *gse.Segmenter
 
 func init() {
 	seg = new(gse.Segmenter)
-	enable := strings.ToUpper(zutils.GetEnv("ZINC_PLUGIN_GSE_ENABLE", "FALSE"))    // false / true
-	embed := strings.ToUpper(zutils.GetEnv("ZINC_PLUGIN_GSE_DICT_EMBED", "SMALL")) // small / big
-	if enable == "TRUE" {
+	enable := zutils.GetEnvToBool("ZINC_PLUGIN_GSE_ENABLE", "FALSE")     // false / true
+	embed := zutils.GetEnvToUpper("ZINC_PLUGIN_GSE_DICT_EMBED", "SMALL") // small / big
+	if enable {
 		if embed == "BIG" {
 			seg.LoadDictEmbed("zh_s")
 			seg.LoadStopEmbed()
diff --git a/pkg/bluge/analysis/lang/chs/gse_dict.go b/pkg/bluge/analysis/lang/chs/gse_dict.go
index 4254fe772..70bba3d49 100644
--- a/pkg/bluge/analysis/lang/chs/gse_dict.go
+++ b/pkg/bluge/analysis/lang/chs/gse_dict.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 chs
 
 var _dictCHS = `的 3188252 uj
diff --git a/pkg/bluge/analysis/lang/chs/gse_stop.go b/pkg/bluge/analysis/lang/chs/gse_stop.go
index 3a394e07b..84a4050ab 100644
--- a/pkg/bluge/analysis/lang/chs/gse_stop.go
+++ b/pkg/bluge/analysis/lang/chs/gse_stop.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 chs
 
 var _dictStop = `,
diff --git a/pkg/bluge/analysis/lang/chs/gse_test.go b/pkg/bluge/analysis/lang/chs/gse_test.go
index 396ce776f..41245bd04 100644
--- a/pkg/bluge/analysis/lang/chs/gse_test.go
+++ b/pkg/bluge/analysis/lang/chs/gse_test.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 chs
 
 import (
diff --git a/pkg/bluge/analysis/lang/chs/token/stop.go b/pkg/bluge/analysis/lang/chs/token/stop.go
index 2338424c3..6f9e063a5 100644
--- a/pkg/bluge/analysis/lang/chs/token/stop.go
+++ b/pkg/bluge/analysis/lang/chs/token/stop.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/bluge/analysis/lang/chs/tokenizer/search.go b/pkg/bluge/analysis/lang/chs/tokenizer/search.go
index 84ae6292b..0bb1a82a3 100644
--- a/pkg/bluge/analysis/lang/chs/tokenizer/search.go
+++ b/pkg/bluge/analysis/lang/chs/tokenizer/search.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/bluge/analysis/lang/chs/tokenizer/standard.go b/pkg/bluge/analysis/lang/chs/tokenizer/standard.go
index 0de94ed5a..94aba2ff6 100644
--- a/pkg/bluge/analysis/lang/chs/tokenizer/standard.go
+++ b/pkg/bluge/analysis/lang/chs/tokenizer/standard.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/bluge/analysis/lang/et/stop_words_et.go b/pkg/bluge/analysis/lang/et/stop_words_et.go
index c0628645c..e0a74380e 100644
--- a/pkg/bluge/analysis/lang/et/stop_words_et.go
+++ b/pkg/bluge/analysis/lang/et/stop_words_et.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 et
 
 import (
diff --git a/pkg/bluge/analysis/lang/lv/stop_words_lv.go b/pkg/bluge/analysis/lang/lv/stop_words_lv.go
index abfec5f30..9bc899fdd 100644
--- a/pkg/bluge/analysis/lang/lv/stop_words_lv.go
+++ b/pkg/bluge/analysis/lang/lv/stop_words_lv.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 lv
 
 import (
diff --git a/pkg/bluge/analysis/lang/th/stop_words_th.go b/pkg/bluge/analysis/lang/th/stop_words_th.go
index cc6f71643..312c56ffd 100644
--- a/pkg/bluge/analysis/lang/th/stop_words_th.go
+++ b/pkg/bluge/analysis/lang/th/stop_words_th.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 th
 
 import (
diff --git a/pkg/bluge/analysis/token/regexp.go b/pkg/bluge/analysis/token/regexp.go
index f3b6b2cd3..f32e07bcd 100644
--- a/pkg/bluge/analysis/token/regexp.go
+++ b/pkg/bluge/analysis/token/regexp.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/bluge/analysis/token/stop.go b/pkg/bluge/analysis/token/stop.go
index fc4328034..0404045dd 100644
--- a/pkg/bluge/analysis/token/stop.go
+++ b/pkg/bluge/analysis/token/stop.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/bluge/analysis/token/stop_words.go b/pkg/bluge/analysis/token/stop_words.go
index 706180d01..c161b42e4 100644
--- a/pkg/bluge/analysis/token/stop_words.go
+++ b/pkg/bluge/analysis/token/stop_words.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/bluge/analysis/token/trim.go b/pkg/bluge/analysis/token/trim.go
index 52564cf0b..bca359069 100644
--- a/pkg/bluge/analysis/token/trim.go
+++ b/pkg/bluge/analysis/token/trim.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/bluge/analysis/token/upper_case.go b/pkg/bluge/analysis/token/upper_case.go
index ec84073dd..196bb9d0e 100644
--- a/pkg/bluge/analysis/token/upper_case.go
+++ b/pkg/bluge/analysis/token/upper_case.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/bluge/analysis/tokenizer/char_group.go b/pkg/bluge/analysis/tokenizer/char_group.go
index 315af594b..6527e167e 100644
--- a/pkg/bluge/analysis/tokenizer/char_group.go
+++ b/pkg/bluge/analysis/tokenizer/char_group.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/bluge/analysis/tokenizer/edge_ngram.go b/pkg/bluge/analysis/tokenizer/edge_ngram.go
index a44e9102f..d9b506727 100644
--- a/pkg/bluge/analysis/tokenizer/edge_ngram.go
+++ b/pkg/bluge/analysis/tokenizer/edge_ngram.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/bluge/analysis/tokenizer/lower_case.go b/pkg/bluge/analysis/tokenizer/lower_case.go
index 6cbca3ad8..f8bab6fc0 100644
--- a/pkg/bluge/analysis/tokenizer/lower_case.go
+++ b/pkg/bluge/analysis/tokenizer/lower_case.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/bluge/analysis/tokenizer/ngram.go b/pkg/bluge/analysis/tokenizer/ngram.go
index fa009dc9c..675bebd3c 100644
--- a/pkg/bluge/analysis/tokenizer/ngram.go
+++ b/pkg/bluge/analysis/tokenizer/ngram.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/bluge/analysis/tokenizer/path_hierarchy.go b/pkg/bluge/analysis/tokenizer/path_hierarchy.go
index 7ec84ee26..77ff4263c 100644
--- a/pkg/bluge/analysis/tokenizer/path_hierarchy.go
+++ b/pkg/bluge/analysis/tokenizer/path_hierarchy.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/core/index.go b/pkg/core/index.go
index c40ec5f18..9e4f38299 100644
--- a/pkg/core/index.go
+++ b/pkg/core/index.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 core
 
 import (
diff --git a/pkg/core/loadindexes.go b/pkg/core/loadindexes.go
index c5837ac49..638aff11e 100644
--- a/pkg/core/loadindexes.go
+++ b/pkg/core/loadindexes.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 core
 
 import (
diff --git a/pkg/core/loadindexes_test.go b/pkg/core/loadindexes_test.go
index cc026e851..de550bbac 100644
--- a/pkg/core/loadindexes_test.go
+++ b/pkg/core/loadindexes_test.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 core
 
 import (
diff --git a/pkg/core/multi_search_v2.go b/pkg/core/multi_search_v2.go
index 4c149283a..65d83bbfd 100644
--- a/pkg/core/multi_search_v2.go
+++ b/pkg/core/multi_search_v2.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 core
 
 import (
diff --git a/pkg/core/newindex.go b/pkg/core/newindex.go
index b5cecc60b..ce9950531 100644
--- a/pkg/core/newindex.go
+++ b/pkg/core/newindex.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 core
 
 import (
diff --git a/pkg/core/newindex_test.go b/pkg/core/newindex_test.go
index 51c83417c..249dcd42b 100644
--- a/pkg/core/newindex_test.go
+++ b/pkg/core/newindex_test.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 core
 
 import (
diff --git a/pkg/core/search.go b/pkg/core/search.go
index e38184e0e..b509b828b 100644
--- a/pkg/core/search.go
+++ b/pkg/core/search.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 core
 
 import (
diff --git a/pkg/core/search_v2.go b/pkg/core/search_v2.go
index e05452c03..d53f4cb0d 100644
--- a/pkg/core/search_v2.go
+++ b/pkg/core/search_v2.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 core
 
 import (
diff --git a/pkg/core/telemetry.go b/pkg/core/telemetry.go
index 1a71ec5c8..d36f22057 100644
--- a/pkg/core/telemetry.go
+++ b/pkg/core/telemetry.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 core
 
 import (
@@ -99,7 +114,7 @@ func (t *telemetry) initBaseInfo() {
 }
 
 func (t *telemetry) Instance() {
-	if zutils.GetEnv("ZINC_TELEMETRY", "enabled") == "disabled" {
+	if !zutils.GetEnvToBool("ZINC_TELEMETRY", "true") {
 		return
 	}
 
@@ -118,7 +133,7 @@ func (t *telemetry) Instance() {
 }
 
 func (t *telemetry) Event(event string, data map[string]interface{}) {
-	if zutils.GetEnv("ZINC_TELEMETRY", "enabled") == "disabled" {
+	if !zutils.GetEnvToBool("ZINC_TELEMETRY", "true") {
 		return
 	}
 
diff --git a/pkg/core/template.go b/pkg/core/template.go
index 196db5238..cc8b6a227 100644
--- a/pkg/core/template.go
+++ b/pkg/core/template.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 core
 
 import (
diff --git a/pkg/core/types.go b/pkg/core/types.go
index 753dc8c8c..f67362843 100644
--- a/pkg/core/types.go
+++ b/pkg/core/types.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 core
 
 import (
diff --git a/pkg/core/updatedocument.go b/pkg/core/updatedocument.go
index abac56c5e..b4a6c424e 100644
--- a/pkg/core/updatedocument.go
+++ b/pkg/core/updatedocument.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 core
 
 // UpdateDocument inserts or updates a document in the zinc index
diff --git a/pkg/directory/minio.go b/pkg/directory/minio.go
index 86793b726..4f539e363 100644
--- a/pkg/directory/minio.go
+++ b/pkg/directory/minio.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 directory
 
 import (
diff --git a/pkg/directory/s3.go b/pkg/directory/s3.go
index 0388a29b9..670fb911e 100644
--- a/pkg/directory/s3.go
+++ b/pkg/directory/s3.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 directory
 
 import (
diff --git a/pkg/errors/error.go b/pkg/errors/error.go
index 19f2c2b99..bc411be65 100644
--- a/pkg/errors/error.go
+++ b/pkg/errors/error.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 errors
 
 import "fmt"
diff --git a/pkg/handlers/bulk.go b/pkg/handlers/bulk.go
index 90f00acae..9fcbcc9dd 100644
--- a/pkg/handlers/bulk.go
+++ b/pkg/handlers/bulk.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 handlers
 
 import (
diff --git a/pkg/handlers/createindex.go b/pkg/handlers/createindex.go
index d3cd47aa8..2ae6f35d3 100644
--- a/pkg/handlers/createindex.go
+++ b/pkg/handlers/createindex.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 handlers
 
 import (
diff --git a/pkg/handlers/createupdateuser.go b/pkg/handlers/createupdateuser.go
index a351df209..0ed3c1d84 100644
--- a/pkg/handlers/createupdateuser.go
+++ b/pkg/handlers/createupdateuser.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 handlers
 
 import (
diff --git a/pkg/handlers/deletedocument.go b/pkg/handlers/deletedocument.go
index 2c28f2644..d6f418f13 100644
--- a/pkg/handlers/deletedocument.go
+++ b/pkg/handlers/deletedocument.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 handlers
 
 import (
diff --git a/pkg/handlers/deleteindex.go b/pkg/handlers/deleteindex.go
index fc2014ab7..f159373fc 100644
--- a/pkg/handlers/deleteindex.go
+++ b/pkg/handlers/deleteindex.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 handlers
 
 import (
diff --git a/pkg/handlers/deleteuser.go b/pkg/handlers/deleteuser.go
index 60cfdd002..08d87cc1f 100644
--- a/pkg/handlers/deleteuser.go
+++ b/pkg/handlers/deleteuser.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 handlers
 
 import (
diff --git a/pkg/handlers/getusers.go b/pkg/handlers/getusers.go
index c986fc688..90802ddf2 100644
--- a/pkg/handlers/getusers.go
+++ b/pkg/handlers/getusers.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 handlers
 
 import (
diff --git a/pkg/handlers/listindexes.go b/pkg/handlers/listindexes.go
index a5a633045..9a44064b2 100644
--- a/pkg/handlers/listindexes.go
+++ b/pkg/handlers/listindexes.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 handlers
 
 import (
diff --git a/pkg/handlers/search.go b/pkg/handlers/search.go
index 9d7e37781..84ada954f 100644
--- a/pkg/handlers/search.go
+++ b/pkg/handlers/search.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 handlers
 
 import (
diff --git a/pkg/handlers/updatedocument.go b/pkg/handlers/updatedocument.go
index cecb3cd19..b41dd7026 100644
--- a/pkg/handlers/updatedocument.go
+++ b/pkg/handlers/updatedocument.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 handlers
 
 import (
diff --git a/pkg/handlers/v2/index_analyzer.go b/pkg/handlers/v2/index_analyzer.go
index 39934bee9..ec9ccb99a 100644
--- a/pkg/handlers/v2/index_analyzer.go
+++ b/pkg/handlers/v2/index_analyzer.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v2
 
 import (
diff --git a/pkg/handlers/v2/index_mapping.go b/pkg/handlers/v2/index_mapping.go
index 196c10a84..831f0fff4 100644
--- a/pkg/handlers/v2/index_mapping.go
+++ b/pkg/handlers/v2/index_mapping.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v2
 
 import (
diff --git a/pkg/handlers/v2/index_settings.go b/pkg/handlers/v2/index_settings.go
index 507da3563..a4a786f41 100644
--- a/pkg/handlers/v2/index_settings.go
+++ b/pkg/handlers/v2/index_settings.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v2
 
 import (
diff --git a/pkg/handlers/v2/index_template.go b/pkg/handlers/v2/index_template.go
index e99f79904..9a0f9f845 100644
--- a/pkg/handlers/v2/index_template.go
+++ b/pkg/handlers/v2/index_template.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v2
 
 import (
diff --git a/pkg/handlers/v2/search.go b/pkg/handlers/v2/search.go
index f7b62e3da..e64a44192 100644
--- a/pkg/handlers/v2/search.go
+++ b/pkg/handlers/v2/search.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v2
 
 import (
diff --git a/pkg/handlers/validatecredentials.go b/pkg/handlers/validatecredentials.go
index e5149d120..102364070 100644
--- a/pkg/handlers/validatecredentials.go
+++ b/pkg/handlers/validatecredentials.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 handlers
 
 import (
diff --git a/pkg/ider/id.go b/pkg/ider/id.go
index c0d966593..dbcb3a283 100644
--- a/pkg/ider/id.go
+++ b/pkg/ider/id.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 ider
 
 import (
diff --git a/pkg/meta/v1/GUI.go b/pkg/meta/v1/GUI.go
index c1f0dec32..50c43edc6 100644
--- a/pkg/meta/v1/GUI.go
+++ b/pkg/meta/v1/GUI.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v1
 
 import (
diff --git a/pkg/meta/v1/elasticsearch.go b/pkg/meta/v1/elasticsearch.go
index c334357cb..57d021cf7 100644
--- a/pkg/meta/v1/elasticsearch.go
+++ b/pkg/meta/v1/elasticsearch.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v1
 
 import (
diff --git a/pkg/meta/v1/healthz.go b/pkg/meta/v1/healthz.go
index 88e46fa0b..9ff1d35d1 100644
--- a/pkg/meta/v1/healthz.go
+++ b/pkg/meta/v1/healthz.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v1
 
 import (
diff --git a/pkg/meta/v1/telemetry.go b/pkg/meta/v1/telemetry.go
index 56588a30d..16e6adf01 100644
--- a/pkg/meta/v1/telemetry.go
+++ b/pkg/meta/v1/telemetry.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v1
 
 import (
diff --git a/pkg/meta/v1/types.go b/pkg/meta/v1/types.go
index c7ca5b640..d4272affd 100644
--- a/pkg/meta/v1/types.go
+++ b/pkg/meta/v1/types.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v1
 
 import (
diff --git a/pkg/meta/v1/version.go b/pkg/meta/v1/version.go
index 46d0891e2..b193f531f 100644
--- a/pkg/meta/v1/version.go
+++ b/pkg/meta/v1/version.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v1
 
 import (
diff --git a/pkg/meta/v2/analyzer.go b/pkg/meta/v2/analyzer.go
index 86561e9d4..636117909 100644
--- a/pkg/meta/v2/analyzer.go
+++ b/pkg/meta/v2/analyzer.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v2
 
 type Analyzer struct {
diff --git a/pkg/meta/v2/index.go b/pkg/meta/v2/index.go
index 7503ed899..3de533d99 100644
--- a/pkg/meta/v2/index.go
+++ b/pkg/meta/v2/index.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v2
 
 type Index struct {
diff --git a/pkg/meta/v2/mappings.go b/pkg/meta/v2/mappings.go
index abb9cb67c..e787b4d86 100644
--- a/pkg/meta/v2/mappings.go
+++ b/pkg/meta/v2/mappings.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v2
 
 type Mappings struct {
diff --git a/pkg/meta/v2/query_dsl.go b/pkg/meta/v2/query_dsl.go
index 09ae120d5..8147e8100 100644
--- a/pkg/meta/v2/query_dsl.go
+++ b/pkg/meta/v2/query_dsl.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v2
 
 // ZincQuery is the query object for the zinc index. compatible ES Query DSL
diff --git a/pkg/meta/v2/query_response.go b/pkg/meta/v2/query_response.go
index a6a1f33e2..53da073b5 100644
--- a/pkg/meta/v2/query_response.go
+++ b/pkg/meta/v2/query_response.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v2
 
 import "time"
diff --git a/pkg/meta/v2/template.go b/pkg/meta/v2/template.go
index 85589d7fb..e10fe0d9f 100644
--- a/pkg/meta/v2/template.go
+++ b/pkg/meta/v2/template.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 v2
 
 type Template struct {
diff --git a/pkg/routes/accesslog.go b/pkg/routes/accesslog.go
index 050651cda..e154ea4ef 100644
--- a/pkg/routes/accesslog.go
+++ b/pkg/routes/accesslog.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 routes
 
 import (
diff --git a/pkg/routes/httpcache.go b/pkg/routes/httpcache.go
index 999c6bae6..fc12e1f6e 100644
--- a/pkg/routes/httpcache.go
+++ b/pkg/routes/httpcache.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 routes
 
 import (
diff --git a/pkg/routes/prometheus.go b/pkg/routes/prometheus.go
index 642a50a02..3e83f902a 100644
--- a/pkg/routes/prometheus.go
+++ b/pkg/routes/prometheus.go
@@ -1,20 +1,30 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 routes
 
 import (
-	"os"
-	"strconv"
-
 	"github.com/gin-gonic/gin"
 	ginprometheus "github.com/zsais/go-gin-prometheus"
+
+	"github.com/zinclabs/zinc/pkg/zutils"
 )
 
 // SetPrometheus sets up prometheus metrics for gin
 func SetPrometheus(r *gin.Engine) {
-	enable := false
-	if v := os.Getenv("ZINC_PROMETHEUS_ENABLE"); v != "" {
-		enable, _ = strconv.ParseBool(v)
-	}
-	if !enable {
+	if !zutils.GetEnvToBool("ZINC_PROMETHEUS_ENABLE", "false") {
 		return
 	}
 
diff --git a/pkg/routes/routes.go b/pkg/routes/routes.go
index ae7568a53..1d46628ef 100644
--- a/pkg/routes/routes.go
+++ b/pkg/routes/routes.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 routes
 
 import (
diff --git a/pkg/startup/loadconfig.go b/pkg/startup/loadconfig.go
index e266f39c8..45e67e36f 100644
--- a/pkg/startup/loadconfig.go
+++ b/pkg/startup/loadconfig.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 startup
 
 import (
diff --git a/pkg/uquery/aggregation.go b/pkg/uquery/aggregation.go
index b6e9f512f..22118f731 100644
--- a/pkg/uquery/aggregation.go
+++ b/pkg/uquery/aggregation.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 uquery
 
 import (
diff --git a/pkg/uquery/alldocuments.go b/pkg/uquery/alldocuments.go
index 5a3dd77af..152a9807a 100644
--- a/pkg/uquery/alldocuments.go
+++ b/pkg/uquery/alldocuments.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 uquery
 
 import (
diff --git a/pkg/uquery/daterange.go b/pkg/uquery/daterange.go
index cd5df6a4c..6ca976f1c 100644
--- a/pkg/uquery/daterange.go
+++ b/pkg/uquery/daterange.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 uquery
 
 import (
diff --git a/pkg/uquery/fuzzy.go b/pkg/uquery/fuzzy.go
index 76940c39a..c60b637d0 100644
--- a/pkg/uquery/fuzzy.go
+++ b/pkg/uquery/fuzzy.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 uquery
 
 import (
diff --git a/pkg/uquery/match.go b/pkg/uquery/match.go
index 40e35b47c..c1655baf8 100644
--- a/pkg/uquery/match.go
+++ b/pkg/uquery/match.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 uquery
 
 import (
diff --git a/pkg/uquery/matchall.go b/pkg/uquery/matchall.go
index a1b3c7451..5d5f68517 100644
--- a/pkg/uquery/matchall.go
+++ b/pkg/uquery/matchall.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 uquery
 
 import (
diff --git a/pkg/uquery/matchphrase.go b/pkg/uquery/matchphrase.go
index c8c1c9abe..c86c9d144 100644
--- a/pkg/uquery/matchphrase.go
+++ b/pkg/uquery/matchphrase.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 uquery
 
 import (
diff --git a/pkg/uquery/multiphrase.go b/pkg/uquery/multiphrase.go
index c2c3ccb38..c2a7e21ac 100644
--- a/pkg/uquery/multiphrase.go
+++ b/pkg/uquery/multiphrase.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 uquery
 
 import (
diff --git a/pkg/uquery/prefix.go b/pkg/uquery/prefix.go
index 62cabcf1d..b5b731cb7 100644
--- a/pkg/uquery/prefix.go
+++ b/pkg/uquery/prefix.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 uquery
 
 import (
diff --git a/pkg/uquery/querystring.go b/pkg/uquery/querystring.go
index 2933793c4..40571ff93 100644
--- a/pkg/uquery/querystring.go
+++ b/pkg/uquery/querystring.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 uquery
 
 import (
diff --git a/pkg/uquery/request.go b/pkg/uquery/request.go
index 0eac25634..dd57bad99 100644
--- a/pkg/uquery/request.go
+++ b/pkg/uquery/request.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 uquery
 
 import (
diff --git a/pkg/uquery/source.go b/pkg/uquery/source.go
index 3c2c685f0..a35c6d1a5 100644
--- a/pkg/uquery/source.go
+++ b/pkg/uquery/source.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 uquery
 
 import (
diff --git a/pkg/uquery/term.go b/pkg/uquery/term.go
index de8b7d090..8cf8c4a5d 100644
--- a/pkg/uquery/term.go
+++ b/pkg/uquery/term.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 uquery
 
 import (
diff --git a/pkg/uquery/v2/aggregation/aggregation.go b/pkg/uquery/v2/aggregation/aggregation.go
index cf36401e7..8ca04884a 100644
--- a/pkg/uquery/v2/aggregation/aggregation.go
+++ b/pkg/uquery/v2/aggregation/aggregation.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 aggregation
 
 import (
diff --git a/pkg/uquery/v2/analysis/analyzer.go b/pkg/uquery/v2/analysis/analyzer.go
index fecf18c66..f2b435330 100644
--- a/pkg/uquery/v2/analysis/analyzer.go
+++ b/pkg/uquery/v2/analysis/analyzer.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 analysis
 
 import (
diff --git a/pkg/uquery/v2/analysis/analyzer/regexp.go b/pkg/uquery/v2/analysis/analyzer/regexp.go
index f616cd288..c08e53051 100644
--- a/pkg/uquery/v2/analysis/analyzer/regexp.go
+++ b/pkg/uquery/v2/analysis/analyzer/regexp.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 analyzer
 
 import (
diff --git a/pkg/uquery/v2/analysis/analyzer/standard.go b/pkg/uquery/v2/analysis/analyzer/standard.go
index a01ccbdbd..b480cea9f 100644
--- a/pkg/uquery/v2/analysis/analyzer/standard.go
+++ b/pkg/uquery/v2/analysis/analyzer/standard.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 analyzer
 
 import (
diff --git a/pkg/uquery/v2/analysis/analyzer/stop.go b/pkg/uquery/v2/analysis/analyzer/stop.go
index 5c9fb9ebc..7a204515d 100644
--- a/pkg/uquery/v2/analysis/analyzer/stop.go
+++ b/pkg/uquery/v2/analysis/analyzer/stop.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 analyzer
 
 import (
diff --git a/pkg/uquery/v2/analysis/analyzer/whitespace.go b/pkg/uquery/v2/analysis/analyzer/whitespace.go
index 726a69286..45e0bfd25 100644
--- a/pkg/uquery/v2/analysis/analyzer/whitespace.go
+++ b/pkg/uquery/v2/analysis/analyzer/whitespace.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 analyzer
 
 import (
diff --git a/pkg/uquery/v2/analysis/char/mapping.go b/pkg/uquery/v2/analysis/char/mapping.go
index fb0ed7764..815631f7d 100644
--- a/pkg/uquery/v2/analysis/char/mapping.go
+++ b/pkg/uquery/v2/analysis/char/mapping.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 char
 
 import (
diff --git a/pkg/uquery/v2/analysis/char/regexp.go b/pkg/uquery/v2/analysis/char/regexp.go
index aa8178b9e..9f2ff077a 100644
--- a/pkg/uquery/v2/analysis/char/regexp.go
+++ b/pkg/uquery/v2/analysis/char/regexp.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 char
 
 import (
diff --git a/pkg/uquery/v2/analysis/char_filter.go b/pkg/uquery/v2/analysis/char_filter.go
index 6f6d9d78a..2533db285 100644
--- a/pkg/uquery/v2/analysis/char_filter.go
+++ b/pkg/uquery/v2/analysis/char_filter.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 analysis
 
 import (
diff --git a/pkg/uquery/v2/analysis/token/dict.go b/pkg/uquery/v2/analysis/token/dict.go
index 9aa81059c..30596d920 100644
--- a/pkg/uquery/v2/analysis/token/dict.go
+++ b/pkg/uquery/v2/analysis/token/dict.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/uquery/v2/analysis/token/edge_ngram.go b/pkg/uquery/v2/analysis/token/edge_ngram.go
index e7b8d0ee4..7e9f18c04 100644
--- a/pkg/uquery/v2/analysis/token/edge_ngram.go
+++ b/pkg/uquery/v2/analysis/token/edge_ngram.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/uquery/v2/analysis/token/elision.go b/pkg/uquery/v2/analysis/token/elision.go
index d8fab6b4e..8fdd9f1be 100644
--- a/pkg/uquery/v2/analysis/token/elision.go
+++ b/pkg/uquery/v2/analysis/token/elision.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/uquery/v2/analysis/token/keyword.go b/pkg/uquery/v2/analysis/token/keyword.go
index 2b17175d4..9ae9bf2eb 100644
--- a/pkg/uquery/v2/analysis/token/keyword.go
+++ b/pkg/uquery/v2/analysis/token/keyword.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/uquery/v2/analysis/token/length.go b/pkg/uquery/v2/analysis/token/length.go
index 21766889a..c9c907672 100644
--- a/pkg/uquery/v2/analysis/token/length.go
+++ b/pkg/uquery/v2/analysis/token/length.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/uquery/v2/analysis/token/ngram.go b/pkg/uquery/v2/analysis/token/ngram.go
index 252db003f..e440c6e3d 100644
--- a/pkg/uquery/v2/analysis/token/ngram.go
+++ b/pkg/uquery/v2/analysis/token/ngram.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/uquery/v2/analysis/token/regexp.go b/pkg/uquery/v2/analysis/token/regexp.go
index 665c64e08..c795f5d2f 100644
--- a/pkg/uquery/v2/analysis/token/regexp.go
+++ b/pkg/uquery/v2/analysis/token/regexp.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/uquery/v2/analysis/token/shingle.go b/pkg/uquery/v2/analysis/token/shingle.go
index 1d7c9edc7..430bf2eaf 100644
--- a/pkg/uquery/v2/analysis/token/shingle.go
+++ b/pkg/uquery/v2/analysis/token/shingle.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/uquery/v2/analysis/token/stop.go b/pkg/uquery/v2/analysis/token/stop.go
index b58b1253f..176194a6f 100644
--- a/pkg/uquery/v2/analysis/token/stop.go
+++ b/pkg/uquery/v2/analysis/token/stop.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/uquery/v2/analysis/token/trim.go b/pkg/uquery/v2/analysis/token/trim.go
index efe4323c4..d2c16b51c 100644
--- a/pkg/uquery/v2/analysis/token/trim.go
+++ b/pkg/uquery/v2/analysis/token/trim.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/uquery/v2/analysis/token/truncate.go b/pkg/uquery/v2/analysis/token/truncate.go
index 612c82312..7b5056fbe 100644
--- a/pkg/uquery/v2/analysis/token/truncate.go
+++ b/pkg/uquery/v2/analysis/token/truncate.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/uquery/v2/analysis/token/unicodenorm.go b/pkg/uquery/v2/analysis/token/unicodenorm.go
index a0a577d1b..b19d8e15c 100644
--- a/pkg/uquery/v2/analysis/token/unicodenorm.go
+++ b/pkg/uquery/v2/analysis/token/unicodenorm.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/uquery/v2/analysis/token/upper_case.go b/pkg/uquery/v2/analysis/token/upper_case.go
index 49c16d4fb..b3ffb4296 100644
--- a/pkg/uquery/v2/analysis/token/upper_case.go
+++ b/pkg/uquery/v2/analysis/token/upper_case.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 token
 
 import (
diff --git a/pkg/uquery/v2/analysis/token_filter.go b/pkg/uquery/v2/analysis/token_filter.go
index 677d28d4e..cf0f8d759 100644
--- a/pkg/uquery/v2/analysis/token_filter.go
+++ b/pkg/uquery/v2/analysis/token_filter.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 analysis
 
 import (
diff --git a/pkg/uquery/v2/analysis/tokenizer.go b/pkg/uquery/v2/analysis/tokenizer.go
index baff1c971..2507d9051 100644
--- a/pkg/uquery/v2/analysis/tokenizer.go
+++ b/pkg/uquery/v2/analysis/tokenizer.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 analysis
 
 import (
diff --git a/pkg/uquery/v2/analysis/tokenizer/char_group.go b/pkg/uquery/v2/analysis/tokenizer/char_group.go
index 2a90790d8..ec5b1d145 100644
--- a/pkg/uquery/v2/analysis/tokenizer/char_group.go
+++ b/pkg/uquery/v2/analysis/tokenizer/char_group.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/uquery/v2/analysis/tokenizer/character.go b/pkg/uquery/v2/analysis/tokenizer/character.go
index fcf90cd7c..1590ffc9a 100644
--- a/pkg/uquery/v2/analysis/tokenizer/character.go
+++ b/pkg/uquery/v2/analysis/tokenizer/character.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/uquery/v2/analysis/tokenizer/edge_ngram.go b/pkg/uquery/v2/analysis/tokenizer/edge_ngram.go
index 461422a6a..d8032b00d 100644
--- a/pkg/uquery/v2/analysis/tokenizer/edge_ngram.go
+++ b/pkg/uquery/v2/analysis/tokenizer/edge_ngram.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/uquery/v2/analysis/tokenizer/exception.go b/pkg/uquery/v2/analysis/tokenizer/exception.go
index 582b20bec..bb95bc21b 100644
--- a/pkg/uquery/v2/analysis/tokenizer/exception.go
+++ b/pkg/uquery/v2/analysis/tokenizer/exception.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/uquery/v2/analysis/tokenizer/lower_case.go b/pkg/uquery/v2/analysis/tokenizer/lower_case.go
index 572c60fae..dc675f760 100644
--- a/pkg/uquery/v2/analysis/tokenizer/lower_case.go
+++ b/pkg/uquery/v2/analysis/tokenizer/lower_case.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/uquery/v2/analysis/tokenizer/ngram.go b/pkg/uquery/v2/analysis/tokenizer/ngram.go
index 26f87a5ed..3de2ba7f5 100644
--- a/pkg/uquery/v2/analysis/tokenizer/ngram.go
+++ b/pkg/uquery/v2/analysis/tokenizer/ngram.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/uquery/v2/analysis/tokenizer/path_hierarchy.go b/pkg/uquery/v2/analysis/tokenizer/path_hierarchy.go
index a6e5c7d82..bfbf2315f 100644
--- a/pkg/uquery/v2/analysis/tokenizer/path_hierarchy.go
+++ b/pkg/uquery/v2/analysis/tokenizer/path_hierarchy.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/uquery/v2/analysis/tokenizer/regexp.go b/pkg/uquery/v2/analysis/tokenizer/regexp.go
index f955a2c80..ce48ba674 100644
--- a/pkg/uquery/v2/analysis/tokenizer/regexp.go
+++ b/pkg/uquery/v2/analysis/tokenizer/regexp.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 tokenizer
 
 import (
diff --git a/pkg/uquery/v2/fields/fields.go b/pkg/uquery/v2/fields/fields.go
index 23b50e2d8..3e887104a 100644
--- a/pkg/uquery/v2/fields/fields.go
+++ b/pkg/uquery/v2/fields/fields.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 fields
 
 import (
diff --git a/pkg/uquery/v2/highlight/highlight.go b/pkg/uquery/v2/highlight/highlight.go
index 84455b954..542581ca5 100644
--- a/pkg/uquery/v2/highlight/highlight.go
+++ b/pkg/uquery/v2/highlight/highlight.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 highlight
 
 import (
diff --git a/pkg/uquery/v2/index/index.go b/pkg/uquery/v2/index/index.go
index 59f9613b7..4855fd62c 100644
--- a/pkg/uquery/v2/index/index.go
+++ b/pkg/uquery/v2/index/index.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 index
 
 import (
diff --git a/pkg/uquery/v2/mappings/mappings.go b/pkg/uquery/v2/mappings/mappings.go
index b3403d0e6..bfe601043 100644
--- a/pkg/uquery/v2/mappings/mappings.go
+++ b/pkg/uquery/v2/mappings/mappings.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 mappings
 
 import (
diff --git a/pkg/uquery/v2/query/bool.go b/pkg/uquery/v2/query/bool.go
index 57e7bfec9..a81fde204 100644
--- a/pkg/uquery/v2/query/bool.go
+++ b/pkg/uquery/v2/query/bool.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/boosting.go b/pkg/uquery/v2/query/boosting.go
index c9c4a533b..622fa8f14 100644
--- a/pkg/uquery/v2/query/boosting.go
+++ b/pkg/uquery/v2/query/boosting.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/combined_fields.go b/pkg/uquery/v2/query/combined_fields.go
index dcfd83557..c787d9901 100644
--- a/pkg/uquery/v2/query/combined_fields.go
+++ b/pkg/uquery/v2/query/combined_fields.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/exists.go b/pkg/uquery/v2/query/exists.go
index af084ab70..376f6982d 100644
--- a/pkg/uquery/v2/query/exists.go
+++ b/pkg/uquery/v2/query/exists.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/fuzzy.go b/pkg/uquery/v2/query/fuzzy.go
index 9339225ab..451144787 100644
--- a/pkg/uquery/v2/query/fuzzy.go
+++ b/pkg/uquery/v2/query/fuzzy.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/geo.go b/pkg/uquery/v2/query/geo.go
index 60b18992d..ffc611a35 100644
--- a/pkg/uquery/v2/query/geo.go
+++ b/pkg/uquery/v2/query/geo.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/ids.go b/pkg/uquery/v2/query/ids.go
index c648b2b95..12d561b2f 100644
--- a/pkg/uquery/v2/query/ids.go
+++ b/pkg/uquery/v2/query/ids.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/match.go b/pkg/uquery/v2/query/match.go
index 2f7058cb1..f27f1e5b4 100644
--- a/pkg/uquery/v2/query/match.go
+++ b/pkg/uquery/v2/query/match.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/match_all.go b/pkg/uquery/v2/query/match_all.go
index ce93fc42a..1c1eafa86 100644
--- a/pkg/uquery/v2/query/match_all.go
+++ b/pkg/uquery/v2/query/match_all.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import "github.com/blugelabs/bluge"
diff --git a/pkg/uquery/v2/query/match_bool_prefix.go b/pkg/uquery/v2/query/match_bool_prefix.go
index 76bc89ac1..dceb13389 100644
--- a/pkg/uquery/v2/query/match_bool_prefix.go
+++ b/pkg/uquery/v2/query/match_bool_prefix.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/match_none.go b/pkg/uquery/v2/query/match_none.go
index be4bb6603..853f1d10b 100644
--- a/pkg/uquery/v2/query/match_none.go
+++ b/pkg/uquery/v2/query/match_none.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import "github.com/blugelabs/bluge"
diff --git a/pkg/uquery/v2/query/match_phrase.go b/pkg/uquery/v2/query/match_phrase.go
index 4bc23121b..2e888f10d 100644
--- a/pkg/uquery/v2/query/match_phrase.go
+++ b/pkg/uquery/v2/query/match_phrase.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/match_phrase_prefix.go b/pkg/uquery/v2/query/match_phrase_prefix.go
index 8569c7275..39681cbde 100644
--- a/pkg/uquery/v2/query/match_phrase_prefix.go
+++ b/pkg/uquery/v2/query/match_phrase_prefix.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/multi_match.go b/pkg/uquery/v2/query/multi_match.go
index 882ca5797..642fb3fde 100644
--- a/pkg/uquery/v2/query/multi_match.go
+++ b/pkg/uquery/v2/query/multi_match.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/prefix.go b/pkg/uquery/v2/query/prefix.go
index ebdfde98a..68b2a3167 100644
--- a/pkg/uquery/v2/query/prefix.go
+++ b/pkg/uquery/v2/query/prefix.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/query.go b/pkg/uquery/v2/query/query.go
index fe5d8b915..e3059cb9e 100644
--- a/pkg/uquery/v2/query/query.go
+++ b/pkg/uquery/v2/query/query.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/query_string.go b/pkg/uquery/v2/query/query_string.go
index dc7bf9776..b19d5defd 100644
--- a/pkg/uquery/v2/query/query_string.go
+++ b/pkg/uquery/v2/query/query_string.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/range.go b/pkg/uquery/v2/query/range.go
index 6227aab3a..f7885c3fa 100644
--- a/pkg/uquery/v2/query/range.go
+++ b/pkg/uquery/v2/query/range.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/regexp.go b/pkg/uquery/v2/query/regexp.go
index d928bafec..01811933c 100644
--- a/pkg/uquery/v2/query/regexp.go
+++ b/pkg/uquery/v2/query/regexp.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/simple_query_string.go b/pkg/uquery/v2/query/simple_query_string.go
index 010ac3226..1ce5aa7e8 100644
--- a/pkg/uquery/v2/query/simple_query_string.go
+++ b/pkg/uquery/v2/query/simple_query_string.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/term.go b/pkg/uquery/v2/query/term.go
index 1513cc784..dc8d5ce1a 100644
--- a/pkg/uquery/v2/query/term.go
+++ b/pkg/uquery/v2/query/term.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/terms.go b/pkg/uquery/v2/query/terms.go
index 4748a50f6..dae6bb6f6 100644
--- a/pkg/uquery/v2/query/terms.go
+++ b/pkg/uquery/v2/query/terms.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/terms_set.go b/pkg/uquery/v2/query/terms_set.go
index 931ee52f5..b2baeb0ea 100644
--- a/pkg/uquery/v2/query/terms_set.go
+++ b/pkg/uquery/v2/query/terms_set.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query/wildcard.go b/pkg/uquery/v2/query/wildcard.go
index 919d923b0..6fa45ef75 100644
--- a/pkg/uquery/v2/query/wildcard.go
+++ b/pkg/uquery/v2/query/wildcard.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 query
 
 import (
diff --git a/pkg/uquery/v2/query_dsl_parser.go b/pkg/uquery/v2/query_dsl_parser.go
index 950e6aa77..76e56239e 100644
--- a/pkg/uquery/v2/query_dsl_parser.go
+++ b/pkg/uquery/v2/query_dsl_parser.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 parser
 
 import (
diff --git a/pkg/uquery/v2/query_response_format.go b/pkg/uquery/v2/query_response_format.go
index f55af5b3a..bcf2bcadc 100644
--- a/pkg/uquery/v2/query_response_format.go
+++ b/pkg/uquery/v2/query_response_format.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 parser
 
 import (
diff --git a/pkg/uquery/v2/sort/sort.go b/pkg/uquery/v2/sort/sort.go
index 1612476c9..5de935178 100644
--- a/pkg/uquery/v2/sort/sort.go
+++ b/pkg/uquery/v2/sort/sort.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 sort
 
 import (
diff --git a/pkg/uquery/v2/source/source.go b/pkg/uquery/v2/source/source.go
index f41af12b6..62022f1c3 100644
--- a/pkg/uquery/v2/source/source.go
+++ b/pkg/uquery/v2/source/source.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 source
 
 import (
diff --git a/pkg/uquery/v2/template/template.go b/pkg/uquery/v2/template/template.go
index e806a4052..79b9a8c8b 100644
--- a/pkg/uquery/v2/template/template.go
+++ b/pkg/uquery/v2/template/template.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 template
 
 import (
diff --git a/pkg/uquery/wildcard.go b/pkg/uquery/wildcard.go
index eade70c7e..d99ba2af1 100644
--- a/pkg/uquery/wildcard.go
+++ b/pkg/uquery/wildcard.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 uquery
 
 import (
diff --git a/pkg/zutils/base62/base62.go b/pkg/zutils/base62/base62.go
index b2f026e31..9f699dba2 100644
--- a/pkg/zutils/base62/base62.go
+++ b/pkg/zutils/base62/base62.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 base62
 
 import (
diff --git a/pkg/zutils/base62/base62_test.go b/pkg/zutils/base62/base62_test.go
index 282eb3431..752a99338 100644
--- a/pkg/zutils/base62/base62_test.go
+++ b/pkg/zutils/base62/base62_test.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 base62
 
 import (
diff --git a/pkg/zutils/env.go b/pkg/zutils/env.go
index 14c3c77be..423c54bc3 100644
--- a/pkg/zutils/env.go
+++ b/pkg/zutils/env.go
@@ -1,6 +1,25 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 zutils
 
-import "os"
+import (
+	"os"
+	"strconv"
+	"strings"
+)
 
 // GetEnv returns the value of the environment variable named by the key and returns the default value if the environment variable is not set.
 func GetEnv(key, fallback string) string {
@@ -9,3 +28,19 @@ func GetEnv(key, fallback string) string {
 	}
 	return fallback
 }
+
+func GetEnvToLower(key, fallback string) string {
+	return strings.ToLower(GetEnv(key, fallback))
+}
+
+func GetEnvToUpper(key, fallback string) string {
+	return strings.ToUpper(GetEnv(key, fallback))
+}
+
+func GetEnvToBool(key, fallback string) bool {
+	enabled := false
+	if v := GetEnv(key, fallback); v != "" {
+		enabled, _ = strconv.ParseBool(v)
+	}
+	return enabled
+}
diff --git a/pkg/zutils/env_test.go b/pkg/zutils/env_test.go
new file mode 100644
index 000000000..6a0e162e8
--- /dev/null
+++ b/pkg/zutils/env_test.go
@@ -0,0 +1,32 @@
+package zutils
+
+import (
+	"testing"
+
+	. "github.com/smartystreets/goconvey/convey"
+)
+
+func TestEnv(t *testing.T) {
+	Convey("zutils:env", t, func() {
+		Convey("GetEnv", func() {
+			a := GetEnv("ZINC_SENTRY", "true")
+			So(a, ShouldEqual, "true")
+			a = GetEnv("ZINC_SENTRY", "")
+			So(a, ShouldEqual, "")
+		})
+		Convey("GetEnvToUpper", func() {
+			a := GetEnvToUpper("ZINC_SENTRY", "true")
+			So(a, ShouldEqual, "TRUE")
+		})
+		Convey("GetEnvToLower", func() {
+			a := GetEnvToLower("ZINC_SENTRY", "TRUE")
+			So(a, ShouldEqual, "true")
+		})
+		Convey("GetEnvBool", func() {
+			a := GetEnvToBool("ZINC_SENTRY", "true")
+			So(a, ShouldEqual, true)
+			a = GetEnvToBool("ZINC_SENTRY", "")
+			So(a, ShouldEqual, false)
+		})
+	})
+}
diff --git a/pkg/zutils/file.go b/pkg/zutils/file.go
index 36edf616e..33128bf7a 100644
--- a/pkg/zutils/file.go
+++ b/pkg/zutils/file.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 zutils
 
 import (
diff --git a/pkg/zutils/flatten/flatten.go b/pkg/zutils/flatten/flatten.go
index c8833a3d4..78947b653 100644
--- a/pkg/zutils/flatten/flatten.go
+++ b/pkg/zutils/flatten/flatten.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 flatten
 
 import (
diff --git a/pkg/zutils/flatten/flatten_test.go b/pkg/zutils/flatten/flatten_test.go
index 30619aaf4..e924f83e9 100644
--- a/pkg/zutils/flatten/flatten_test.go
+++ b/pkg/zutils/flatten/flatten_test.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 flatten
 
 import (
diff --git a/pkg/zutils/map.go b/pkg/zutils/map.go
index 8800d325b..0f0fd38d8 100644
--- a/pkg/zutils/map.go
+++ b/pkg/zutils/map.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 zutils
 
 import "fmt"
diff --git a/pkg/zutils/strings.go b/pkg/zutils/strings.go
index 6f46de072..2dd3c2a68 100644
--- a/pkg/zutils/strings.go
+++ b/pkg/zutils/strings.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 zutils
 
 import "strconv"
diff --git a/pkg/zutils/time.go b/pkg/zutils/time.go
index 9510655e9..1ef65f7b1 100644
--- a/pkg/zutils/time.go
+++ b/pkg/zutils/time.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 zutils
 
 import (
diff --git a/pkg/zutils/time_zone.go b/pkg/zutils/time_zone.go
index 326cbe290..247c93bdc 100644
--- a/pkg/zutils/time_zone.go
+++ b/pkg/zutils/time_zone.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 zutils
 
 import (
diff --git a/test/analyze_test.go b/test/analyze_test.go
index 8af9f4a71..f31b35a88 100644
--- a/test/analyze_test.go
+++ b/test/analyze_test.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 test
 
 import (
diff --git a/test/api_test.go b/test/api_test.go
index 502a252d4..eb11c3cd4 100644
--- a/test/api_test.go
+++ b/test/api_test.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 test
 
 import (
diff --git a/test/auth_test.go b/test/auth_test.go
index d9ed29ed5..e687a63b6 100644
--- a/test/auth_test.go
+++ b/test/auth_test.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 test
 
 import (
diff --git a/test/base_test.go b/test/base_test.go
index dc781ff7d..ab8c28463 100644
--- a/test/base_test.go
+++ b/test/base_test.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 test
 
 import (
diff --git a/test/benchmark_test.go b/test/benchmark_test.go
index ab73a4c72..8639e4bc3 100644
--- a/test/benchmark_test.go
+++ b/test/benchmark_test.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 test
 
 import (
diff --git a/test/es_test.go b/test/es_test.go
index 1f3b39624..ceeade5d7 100644
--- a/test/es_test.go
+++ b/test/es_test.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 test
 
 import (
diff --git a/test/init.go b/test/init.go
index f4727e2c7..cf229fb9b 100644
--- a/test/init.go
+++ b/test/init.go
@@ -1,3 +1,18 @@
+/* Copyright 2022 Zinc Labs Inc. and Contributors
+*
+* 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 test
 
 import (
diff --git a/web/src/components/search/IndexList.vue b/web/src/components/search/IndexList.vue
index 06ab9c46e..945c316c5 100644
--- a/web/src/components/search/IndexList.vue
+++ b/web/src/components/search/IndexList.vue
@@ -8,7 +8,7 @@
         dense
         use-input
         input-debounce="0"
-        label="Select Index"
+        label="Select Index First"
         behavior="menu"
         class="q-mt-md q-mb-sm"
         @filter="filterFn"
@@ -165,8 +165,6 @@ export default defineComponent({
             value: item.name,
           });
         });
-        selectedIndex.value = indexList.value[0];
-        selectFn(selectedIndex.value);
       });
     };
 
diff --git a/web/src/components/search/SyntaxGuide.vue b/web/src/components/search/SyntaxGuide.vue
index 908e6ccdd..d7f0781ac 100644
--- a/web/src/components/search/SyntaxGuide.vue
+++ b/web/src/components/search/SyntaxGuide.vue
@@ -64,7 +64,8 @@
 
 <style lang="scss">
 .syntax-guide {
-  /* width: 80%; */
+  /* width: 80%;*/
+
   margin-right: 10px;
 }