diff --git a/.github/chart-test.yaml b/.github/chart-test.yaml
index 2772345..87389c9 100644
--- a/.github/chart-test.yaml
+++ b/.github/chart-test.yaml
@@ -3,3 +3,4 @@ chart-dirs:
 charts:
   - charts/greptimedb-operator
   - charts/greptimedb
+  - charts/greptimedb-standalone
diff --git a/charts/greptimedb-standalone/README.md b/charts/greptimedb-standalone/README.md
new file mode 100644
index 0000000..0165628
--- /dev/null
+++ b/charts/greptimedb-standalone/README.md
@@ -0,0 +1,20 @@
+# Overview
+
+Helm chart for [GreptimeDB](https://github.com/GreptimeTeam/greptimedb) standalone mode.
+
+## How to install
+
+```console
+# Add charts repo.
+helm repo add greptime https://greptimeteam.github.io/helm-charts/
+helm repo update
+
+# Install greptimedb in default namespace.
+helm install greptimedb greptime/greptimedb-standalone -n default --devel
+```
+
+## How to uninstall
+
+```console
+helm uninstall greptimedb -n default
+```
diff --git a/charts/greptimedb-standalone/templates/service.yaml b/charts/greptimedb-standalone/templates/service.yaml
index 09ac8d0..4068018 100644
--- a/charts/greptimedb-standalone/templates/service.yaml
+++ b/charts/greptimedb-standalone/templates/service.yaml
@@ -12,24 +12,24 @@ spec:
   type: {{ .Values.service.type }}
   ports:
     - name: http
-      port: 4000
-      targetPort: 4000
+      port: {{ .Values.httpPort }}
+      targetPort: {{ .Values.httpPort }}
       protocol: TCP
     - name: grpc
-      port: 4001
-      targetPort: 4001
+      port: {{ .Values.grpcPort }}
+      targetPort: {{ .Values.grpcPort }}
       protocol: TCP
     - name: mysql
-      port: 4002
-      targetPort: 4002
+      port: {{ .Values.mysqlPort }}
+      targetPort: {{ .Values.mysqlPort }}
       protocol: TCP
     - name: postgres
-      port: 4003
-      targetPort: 4003
+      port: {{ .Values.postgresPort }}
+      targetPort: {{ .Values.postgresPort }}
       protocol: TCP
     - name: prom
-      port: 4004
-      targetPort: 4004
+      port: {{ .Values.promPort }}
+      targetPort: {{ .Values.promPort }}
       protocol: TCP
   selector:
     {{- include "greptimedb.selectorLabels" . | nindent 4 }}
diff --git a/charts/greptimedb-standalone/templates/statefulset.yaml b/charts/greptimedb-standalone/templates/statefulset.yaml
index 1c73867..513aad4 100644
--- a/charts/greptimedb-standalone/templates/statefulset.yaml
+++ b/charts/greptimedb-standalone/templates/statefulset.yaml
@@ -62,24 +62,27 @@ spec:
             {{- toYaml . | nindent 10 }}
           {{- end }}
           ports:
-            - containerPort: 4000
+            - containerPort: {{ .Values.httpPort }}
               name: http
               protocol: TCP
-            - containerPort: 4001
+            - containerPort: {{ .Values.grpcPort }}
               name: grpc
               protocol: TCP
-            - containerPort: 4002
+            - containerPort: {{ .Values.mysqlPort }}
               name: mysql
               protocol: TCP
-            - containerPort: 4003
+            - containerPort: {{ .Values.postgresPort }}
               name: postgres
               protocol: TCP
-            - containerPort: 4004
+            - containerPort: {{ .Values.promPort }}
               name: prom
               protocol: TCP
-          {{- with .Values.env }}
+          {{- if .Values.env }}
           env:
-            {{- toYaml . | nindent 12 }}
+            {{- range $key, $val := .Values.env }}
+            - name: {{ $key }}
+              value: {{ $val | quote }}
+            {{- end }}
           {{- end }}
           {{- with .Values.envFrom }}
           envFrom:
@@ -91,7 +94,7 @@ spec:
           {{- end }}
           volumeMounts:
             - name: data
-              mountPath: /data
+              mountPath: /tmp/greptimedb
           {{- with .Values.resources }}
           resources:
             {{- toYaml . | nindent 12 }}
diff --git a/charts/greptimedb-standalone/values.yaml b/charts/greptimedb-standalone/values.yaml
index 807c665..4ed3adf 100644
--- a/charts/greptimedb-standalone/values.yaml
+++ b/charts/greptimedb-standalone/values.yaml
@@ -24,43 +24,44 @@ serviceAccount:
   # If not set and create is true, a name is generated using the fullname template
   name: ""
 
-# Command to execute instead of defined in Docker image
 command: [
   "greptime", "standalone", "start"
 ]
 
-# Additional cli args
 args: []
 
-# Environment variables
-env: []
-#  GREPTIMEDB_STANDALONE__HTTP_OPTIONS__ADDR: "0.0.0.0:4000"
-#  GREPTIMEDB_STANDALONE__HTTP_OPTIONS__TIMEOUT: "120s"
-#  GREPTIMEDB_STANDALONE__PROM_OPTIONS__ADDR: "0.0.0.0:4004"
+env:
+  GREPTIMEDB_STANDALONE__HTTP_OPTIONS__ADDR: "0.0.0.0:4000"
+  GREPTIMEDB_STANDALONE__HTTP_OPTIONS__TIMEOUT: "120s"
+  GREPTIMEDB_STANDALONE__PROM_OPTIONS__ADDR: "0.0.0.0:4004"
+
 #  GREPTIMEDB_STANDALONE__WAL__FILE_SIZE: "128MB"
 #  GREPTIMEDB_STANDALONE__WAL__PURGE_THRESHOLD: "2GB"
+#
 #  GREPTIMEDB_STANDALONE__STORAGE__TYPE: "File"
 #  # Temporary put this in another directory to clear the database's data.
 #  GREPTIMEDB_STANDALONE__STORAGE__DATA_HOME: "/tmp/greptimedb/data"
+#
 #  # GREPTIMEDB_STANDALONE__STORAGE__TYPE: "S3"
 #  # GREPTIMEDB_STANDALONE__STORAGE__BUCKET: "bucket-name"
 #  # GREPTIMEDB_STANDALONE__STORAGE__ROOT: "/data"
 #  # GREPTIMEDB_STANDALONE__STORAGE__REGION: "ap-southeast-1"
+#
 #  GREPTIMEDB_STANDALONE__STORAGE__CACHE_PATH: "/tmp/greptimedb/s3cache"
+#  GREPTIMEDB_DATANODE__WAL__DIR: "/tmp/greptimedb/wal"
 #  GREPTIMEDB_STANDALONE__STORAGE__GLOBAL_TTL: "1d"
 #  GREPTIMEDB_STANDALONE__STORAGE__MANIFEST__CHECKPOINT_ON_STARTUP: "true"
-#  # GREPTIMEDB_STANDALONE__STORAGE__FLUSH__REGION_WRITE_BUFFER_SIZE: "256MB"
-#  # GREPTIMEDB_STANDALONE__STORAGE__FLUSH__REGION_WRITE_BUFFER_SIZE: "1MB"
 #  GREPTIMEDB_STANDALONE__STORAGE__FLUSH__GLOBAL_WRITE_BUFFER_SIZE: "512MB"
-#  # GREPTIMEDB_STANDALONE__STORAGE__FLUSH__GLOBAL_WRITE_BUFFER_SIZE: "300MB"
-#  # GREPTIMEDB_STANDALONE__STORAGE__FLUSH__GLOBAL_WRITE_BUFFER_SIZE: "100MB"
+#  # GREPTIMEDB_STANDALONE__STORAGE__FLUSH__REGION_WRITE_BUFFER_SIZE: "256MB"
 #  # GREPTIMEDB_STANDALONE__STORAGE__FLUSH__AUTO_FLUSH_INTERVAL: "5m"
 #  # GREPTIMEDB_STANDALONE__STORAGE__FLUSH__MAX_FLUSH_TASKS: "2"
 #  # GREPTIMEDB_STANDALONE__STORAGE__COMPACTION__MAX_INFLIGHT_TASKS: "2"
 #  MALLOC_CONF: "prof:true"
 #  # GREPTIMEDB_STANDALONE__STORAGE__SKIP_WAL: "true"
+#  # GREPTIMEDB_DATANODE__STORAGE__MANIFEST__CHECKPOINT_MARGIN: "100"
+#  # GREPTIMEDB_DATANODE__STORAGE__MANIFEST__GC_DURATION: "5m"
+
 
-# Environment variables
 envFrom: {}
 #  - secretRef:
 #      name: config
@@ -153,14 +154,21 @@ persistence:
   selector: null
 
 monitoring:
-  enabled: false
+  enabled: true
   # PodMonitor annotations
   annotations: {}
   # PodMonitor labels
-  labels: {}
+  labels:
+    release: prometheus
   # PodMonitor scrape interval
   interval: 15s
 
+httpPort: 4000
+grpcPort: 4001
+mysqlPort: 4002
+postgresPort: 4003
+promPort: 4004
+
 service:
   type: ClusterIP
   # Annotations for Service