diff --git a/adhoc-config/mongodb-local-pv..yaml b/adhoc-config/mongodb-local-pv..yaml
new file mode 100644
index 0000000..5734576
--- /dev/null
+++ b/adhoc-config/mongodb-local-pv..yaml
@@ -0,0 +1,25 @@
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: mongodb-local-pv
+  labels:
+    type: local
+    name: mongodb
+spec:
+  capacity:
+    storage: 20Gi
+  volumeMode: Filesystem
+  accessModes:
+    - ReadWriteOnce
+  persistentVolumeReclaimPolicy: Delete
+  storageClassName: local-storage
+  local:
+    path: /mnt/k8s/mongodb-data
+  nodeAffinity:
+    required:
+      nodeSelectorTerms:
+        - matchExpressions:
+            - key: kubernetes.io/hostname
+              operator: In
+              values:
+                - server-3
diff --git a/recovery.sh b/recovery.sh
index a6485cd..7b94a2a 100644
--- a/recovery.sh
+++ b/recovery.sh
@@ -137,3 +137,16 @@ fs.inotify.max_user_watches=655360
 
 # apply change
 sudo sysctl --system
+
+
+
+### client add
+
+# install crio
+
+https://computingforgeeks.com/install-cri-o-container-runtime-on-ubuntu-linux/
+
+# update cgroup driver
+https://kubernetes.io/docs/setup/production-environment/container-runtimes/#cgroup-driver
+
+# install kubeadm and kublet