installer: create namespaces with kube client
diff --git a/charts/welcome/templates/install.yaml b/charts/welcome/templates/install.yaml
index 9dd639a..ddeeab6 100644
--- a/charts/welcome/templates/install.yaml
+++ b/charts/welcome/templates/install.yaml
@@ -1,3 +1,27 @@
+kind: ClusterRole
+metadata:
+  name: {{ .Global.PCloudEnvName }}-welcome
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - namespaces
+  verbs:
+  - create
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: {{ .Global.PCloudEnvName }}-welcome
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: {{ .Global.PCloudEnvName }}-welcome
+subjects:
+- kind: ServiceAccount
+  name: default
+  namespace: {{ .Release.Namespace }}
+---
 apiVersion: v1
 kind: Secret
 metadata: