diff --git a/charts/templates/controller-svc.yaml b/charts/templates/controller-svc.yaml
index 93e60e53125..b4d39619d94 100644
--- a/charts/templates/controller-svc.yaml
+++ b/charts/templates/controller-svc.yaml
@@ -2,7 +2,7 @@ kind: Service
 apiVersion: v1
 metadata:
   name: kube-ovn-controller
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
   labels:
     app: kube-ovn-controller
 spec:
diff --git a/charts/templates/monitor-svc.yaml b/charts/templates/monitor-svc.yaml
index fec1fbb3343..1ad1800d84b 100644
--- a/charts/templates/monitor-svc.yaml
+++ b/charts/templates/monitor-svc.yaml
@@ -2,7 +2,7 @@ kind: Service
 apiVersion: v1
 metadata:
   name: kube-ovn-monitor
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
   labels:
     app: kube-ovn-monitor
 spec:
diff --git a/charts/templates/nb-svc.yaml b/charts/templates/nb-svc.yaml
index 7ec1595c17c..43992e91c6a 100644
--- a/charts/templates/nb-svc.yaml
+++ b/charts/templates/nb-svc.yaml
@@ -2,7 +2,7 @@ kind: Service
 apiVersion: v1
 metadata:
   name: ovn-nb
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
 spec:
   ports:
     - name: ovn-nb
diff --git a/charts/templates/northd-svc.yaml b/charts/templates/northd-svc.yaml
index 494f57e249b..cec072330b0 100644
--- a/charts/templates/northd-svc.yaml
+++ b/charts/templates/northd-svc.yaml
@@ -2,7 +2,7 @@ kind: Service
 apiVersion: v1
 metadata:
   name: ovn-northd
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
 spec:
   ports:
     - name: ovn-northd
diff --git a/charts/templates/ovn-CRB.yaml b/charts/templates/ovn-CRB.yaml
index aa84b43f7c2..9230d90035b 100644
--- a/charts/templates/ovn-CRB.yaml
+++ b/charts/templates/ovn-CRB.yaml
@@ -9,7 +9,7 @@ roleRef:
 subjects:
   - kind: ServiceAccount
     name: ovn
-    namespace: kube-system
+    namespace: {{ .Values.namespace }}
 
 ---
 apiVersion: rbac.authorization.k8s.io/v1
@@ -23,7 +23,7 @@ roleRef:
 subjects:
   - kind: ServiceAccount
     name: ovn-ovs
-    namespace: kube-system
+    namespace: {{ .Values.namespace }}
 
 ---
 apiVersion: rbac.authorization.k8s.io/v1
@@ -37,7 +37,7 @@ roleRef:
 subjects:
   - kind: ServiceAccount
     name: kube-ovn-cni
-    namespace: kube-system
+    namespace: {{ .Values.namespace }}
 
 ---
 apiVersion: rbac.authorization.k8s.io/v1
@@ -51,4 +51,4 @@ roleRef:
 subjects:
   - kind: ServiceAccount
     name: kube-ovn-app
-    namespace: kube-system
+    namespace: {{ .Values.namespace }}
diff --git a/charts/templates/ovn-dpdk-ds.yaml b/charts/templates/ovn-dpdk-ds.yaml
index 88865224c8c..7654fea0263 100644
--- a/charts/templates/ovn-dpdk-ds.yaml
+++ b/charts/templates/ovn-dpdk-ds.yaml
@@ -3,7 +3,7 @@ kind: DaemonSet
 apiVersion: apps/v1
 metadata:
   name: ovs-ovn-dpdk
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
   annotations:
     kubernetes.io/description: |
       This daemon set launches the openvswitch daemon.
diff --git a/charts/templates/ovn-sa.yaml b/charts/templates/ovn-sa.yaml
index 0400b90b3ff..17b4a92f784 100644
--- a/charts/templates/ovn-sa.yaml
+++ b/charts/templates/ovn-sa.yaml
@@ -2,7 +2,7 @@ apiVersion: v1
 kind: ServiceAccount
 metadata:
   name: ovn
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
 {{-  if .Values.global.registry.imagePullSecrets }}
 imagePullSecrets:
 {{- range $index, $secret := .Values.global.registry.imagePullSecrets }}
@@ -17,18 +17,18 @@ apiVersion: v1
 kind: ServiceAccount
 metadata:
   name: ovn-ovs
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
 
 ---
 apiVersion: v1
 kind: ServiceAccount
 metadata:
   name: kube-ovn-cni
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
 
 ---
 apiVersion: v1
 kind: ServiceAccount
 metadata:
   name: kube-ovn-app
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
diff --git a/charts/templates/ovncni-svc.yaml b/charts/templates/ovncni-svc.yaml
index 13b18c4d786..e1c47c806f8 100644
--- a/charts/templates/ovncni-svc.yaml
+++ b/charts/templates/ovncni-svc.yaml
@@ -2,7 +2,7 @@ kind: Service
 apiVersion: v1
 metadata:
   name: kube-ovn-cni
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
   labels:
     app: kube-ovn-cni
 spec:
diff --git a/charts/templates/pinger-ds.yaml b/charts/templates/pinger-ds.yaml
index 91df855b6ba..aa66ffd2f0b 100644
--- a/charts/templates/pinger-ds.yaml
+++ b/charts/templates/pinger-ds.yaml
@@ -51,6 +51,7 @@ spec:
           {{- else if eq .Values.networking.NET_STACK "ipv6" -}}
           {{ .Values.ipv6.PINGER_EXTERNAL_DOMAIN }}
           {{- end }}
+          - --ds-namespace={{ .Values.namespace }}
           - --logtostderr=false
           - --alsologtostderr=true
           - --log_file=/var/log/kube-ovn/kube-ovn-pinger.log
diff --git a/charts/templates/pinger-svc.yaml b/charts/templates/pinger-svc.yaml
index 0301407e590..ef169e8e91c 100644
--- a/charts/templates/pinger-svc.yaml
+++ b/charts/templates/pinger-svc.yaml
@@ -2,7 +2,7 @@ kind: Service
 apiVersion: v1
 metadata:
   name: kube-ovn-pinger
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
   labels:
     app: kube-ovn-pinger
 spec:
diff --git a/charts/templates/pre-delete-hook.yaml b/charts/templates/pre-delete-hook.yaml
index 9fd2a788085..d81c5ca2298 100644
--- a/charts/templates/pre-delete-hook.yaml
+++ b/charts/templates/pre-delete-hook.yaml
@@ -2,7 +2,7 @@ apiVersion: v1
 kind: ServiceAccount
 metadata:
   name: kube-ovn-pre-delete-hook
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
   annotations:
     # This is what defines this resource as a hook. Without this line, the
     # job is considered part of the release.
@@ -48,13 +48,13 @@ roleRef:
 subjects:
   - kind: ServiceAccount
     name: kube-ovn-pre-delete-hook
-    namespace: kube-system
+    namespace: {{ .Values.namespace }}
 ---
 apiVersion: batch/v1
 kind: Job
 metadata:
   name: "{{ .Chart.Name }}-pre-delete-hook"
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
   labels:
     app.kubernetes.io/managed-by: {{ .Release.Service | quote }}
     app.kubernetes.io/instance: {{ .Release.Name | quote }}
diff --git a/charts/templates/sb-svc.yaml b/charts/templates/sb-svc.yaml
index 5f8fcca4f61..36a4a27ab0c 100644
--- a/charts/templates/sb-svc.yaml
+++ b/charts/templates/sb-svc.yaml
@@ -2,7 +2,7 @@ kind: Service
 apiVersion: v1
 metadata:
   name: ovn-sb
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
 spec:
   ports:
     - name: ovn-sb
diff --git a/charts/templates/upgrade-ovs-ovn.yaml b/charts/templates/upgrade-ovs-ovn.yaml
index 487eb218061..980354e6bd0 100644
--- a/charts/templates/upgrade-ovs-ovn.yaml
+++ b/charts/templates/upgrade-ovs-ovn.yaml
@@ -1,11 +1,11 @@
-{{ if (lookup "apps/v1" "DaemonSet" "kube-system" "ovs-ovn") }}
-{{ if eq (lookup "apps/v1" "DaemonSet" "kube-system" "ovs-ovn").spec.updateStrategy.type "OnDelete" }}
+{{ if (lookup "apps/v1" "DaemonSet" .Values.namespace "ovs-ovn") }}
+{{ if eq (lookup "apps/v1" "DaemonSet" .Values.namespace "ovs-ovn").spec.updateStrategy.type "OnDelete" }}
 ---
 apiVersion: v1
 kind: ServiceAccount
 metadata:
   name: ovs-ovn-upgrade
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
   annotations:
     # This is what defines this resource as a hook. Without this line, the
     # job is considered part of the release.
@@ -65,13 +65,13 @@ roleRef:
 subjects:
   - kind: ServiceAccount
     name: ovs-ovn-upgrade
-    namespace: kube-system
+    namespace: {{ .Values.namespace }}
 ---
 apiVersion: batch/v1
 kind: Job
 metadata:
   name: "{{ .Chart.Name }}-post-upgrade-hook"
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
   labels:
     app.kubernetes.io/managed-by: {{ .Release.Service | quote }}
     app.kubernetes.io/instance: {{ .Release.Name | quote }}
diff --git a/charts/templates/vpc-nat-config.yaml b/charts/templates/vpc-nat-config.yaml
index 486ffe32421..0f9bd0f504f 100755
--- a/charts/templates/vpc-nat-config.yaml
+++ b/charts/templates/vpc-nat-config.yaml
@@ -2,7 +2,7 @@ kind: ConfigMap
 apiVersion: v1
 metadata:
   name: ovn-vpc-nat-config
-  namespace: kube-system
+  namespace: {{ .Values.namespace }}
   annotations:
     kubernetes.io/description: |
       kube-ovn vpc-nat common config
diff --git a/dist/images/start-ovs.sh b/dist/images/start-ovs.sh
index db9f30de9f9..5e4b1864391 100755
--- a/dist/images/start-ovs.sh
+++ b/dist/images/start-ovs.sh
@@ -54,7 +54,7 @@ function quit {
   revision_hash=$(kubectl -n "${POD_NAMESPACE}" get pod "${POD_NAME}" -o jsonpath='{.metadata.labels.controller-revision-hash}')
   revision=$(kubectl -n "${POD_NAMESPACE}" get controllerrevision "${gen_name}${revision_hash}" -o jsonpath='{.revision}')
   ds_name=${gen_name%-}
-  latest_revision=$(kubectl -n kube-system get controllerrevision --no-headers | awk '$2 == "daemonset.apps/'$ds_name'" {print $3}' | sort -nr | head -n1)
+  latest_revision=$(kubectl -n "${POD_NAMESPACE}" get controllerrevision --no-headers | awk '$2 == "daemonset.apps/'$ds_name'" {print $3}' | sort -nr | head -n1)
   if [ "x$latest_revision" = "x$revision" ]; then
     # stop ovn-controller/ovs only when the processes are in the same cgroup
     pid=$(/usr/share/ovn/scripts/ovn-ctl status_controller | awk '{print $NF}')