diff --git a/.gitignore b/.gitignore
index 6b0713e..358bf83 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 # Helm chart automated files
 /charts/*/charts
 .idea
+.vscode
diff --git a/charts/dify/Chart.yaml b/charts/dify/Chart.yaml
index ac43146..c7a2422 100644
--- a/charts/dify/Chart.yaml
+++ b/charts/dify/Chart.yaml
@@ -20,13 +20,13 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.3.6
+version: 0.4.0
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
 # It is recommended to use it with quotes.
-appVersion: "0.6.9"
+appVersion: "0.6.11"
 
 dependencies:
   - name: redis
diff --git a/charts/dify/README.md b/charts/dify/README.md
index 4db348c..4047c7f 100644
--- a/charts/dify/README.md
+++ b/charts/dify/README.md
@@ -34,47 +34,55 @@ minio:
   embedded: true
 ```
 
-```
+```sh
 # install it
 helm repo add douban https://douban.github.io/charts/
 helm upgrade dify douban/dify -f values.yaml --install --debug
 ```
+
 **Must** run db migration after installation, or the instance would not work.
-```
+
+```sh
 # run migration
 kubectl exec -it dify-pod-name -- flask db upgrade
 ```
 
 ## Upgrade
+
 To upgrade app, change the value of `global.image.tag` to the desired version
-```
+
+```yaml
 global:
   image:
     tag: "0.6.3"
 ```
 
-Then upgrade the app with helm command 
-```
+Then upgrade the app with helm command
+
+```sh
 helm upgrade dify douban/dify -f values.yaml --debug
 ```
 
 **Must** run db migration after upgrade.
-```
+
+```sh
 # run migration
 kubectl exec -it dify-pod-name -- flask db upgrade
 ```
 
 ## Production use checklist
+
 The minimal configure provided above is sufficient for experiment but **without any persistance**, all your data would be lost if you restarted the postgresql pod or minio pod!!
 
 You **must do**  the following extra work before put it into production!!
 
-
 ### Protect Sensitive info with secret
+
 Environment variable like `SECRET_KEY` could be harmful if leaked, it is adviced to protect them using secret or csi volume.
 
-The example of using secret is like 
-```
+The example of using secret is like
+
+```yaml
 global:
   extraBackendEnvs:
   - name: SECRET_KEY
@@ -84,14 +92,14 @@ global:
         key: SECRET_KEY
 ```
 
-Read more: https://kubernetes.io/docs/concepts/security/secrets-good-practices/
+Read more: <https://kubernetes.io/docs/concepts/security/secrets-good-practices/>
 
 ### External postgresql
 
 1. set the `postgresql.embedded` to `false`
 2. inject connection info with `global.extraBackendEnvs`
 
-```
+```yaml
 global:
   extraBackendEnvs:
   - name: DB_USERNAME
@@ -111,9 +119,11 @@ global:
 ```
 
 ### External redis
+
 1. set the `redis.embedded` to `false`
 2. inject connection info with `global.extraBackendEnvs`
-```
+
+```yaml
 global:
   extraBackendEnvs:
   - name: REDIS_HOST
@@ -135,12 +145,16 @@ global:
         key: CELERY_BROKER_URL
 ```
 
-### External s3 bucket
+### External bucket
+
+#### Amazon S3
+
 1. set the `minio.embedded` to `false`
 2. inject connection info with `global.extraBackendEnvs`
 
-```
+```yaml
 global:
+  storageType: "s3"
   extraBackendEnvs:
   - name: S3_ENDPOINT
     value: "https://my-endpoint.s3.com"
@@ -159,11 +173,29 @@ global:
         key: S3_SECRET_KEY
 ```
 
+#### Google Cloud Storage
+
+1. set the `minio.embedded` to `false`
+2. inject connection info with `global.extraBackendEnvs`
+
+```yaml
+global:
+  storageType: "google-storage"
+  extraBackendEnvs:
+  - name: GOOGLE_STORAGE_BUCKET_NAME
+    value: "bucket-name"
+  - name: GOOGLE_STORAGE_SERVICE_ACCOUNT_JSON_BASE64
+    valueFrom:
+      secretKeyRef:
+        name: dify-secret
+        key: GOOGLE_STORAGE_SERVICE_ACCOUNT_JSON_BASE64
+```
+
 ### Setup vector db
 
 due to the complexity of vector db, this component is not included, you have to use external vector db, likewise , you can inject environment variable to use it
 
-```
+```yaml
 global:
   extraBackendEnvs:
   - name: VECTOR_STORE
diff --git a/charts/dify/templates/_helpers.tpl b/charts/dify/templates/_helpers.tpl
index a38a642..16035e0 100644
--- a/charts/dify/templates/_helpers.tpl
+++ b/charts/dify/templates/_helpers.tpl
@@ -68,7 +68,7 @@ Create the name of the service account to use
 {{/*
 dify environments
 commonEnvs are for all containers
-commonBackendEnvs are for api and worker containers 
+commonBackendEnvs are for api and worker containers
 */}}
 {{- define "dify.commonEnvs" -}}
 - name: EDITION
@@ -81,6 +81,8 @@ commonBackendEnvs are for api and worker containers
 
 
 {{- define "dify.commonBackendEnvs" -}}
+- name: STORAGE_TYPE
+  value: {{ .Values.global.storageType }}
 {{- if .Values.redis.embedded }}
 - name: CELERY_BROKER_URL
   value: redis://:{{ .Values.redis.auth.password }}@{{ include "dify.fullname" . }}-redis-master:6379/1
@@ -103,8 +105,6 @@ commonBackendEnvs are for api and worker containers
 - name: DB_DATABASE
   value: {{ .Values.postgresql.auth.database }}
 {{- end }}
-- name: STORAGE_TYPE
-  value: "s3"
 
 {{- if .Values.minio.embedded }}
 - name: S3_ENDPOINT
diff --git a/charts/dify/values.yaml b/charts/dify/values.yaml
index 68fe2be..82d5910 100644
--- a/charts/dify/values.yaml
+++ b/charts/dify/values.yaml
@@ -19,6 +19,7 @@ global:
   image:
     tag: ""
   edition: "SELF_HOSTED"
+  storageType: "s3"
   # the following extra configs would be injected into:
   # * frontend
   # * api