Merge pull request #20 from peter-wangxu/fixes/persist_provisioner_root

Make provisioner root persistent across reboot

Author: k8s-ci-robot

deploy/hostpath/csi-hostpath-plugin.yaml

@@ -60,6 +60,8 @@ spec:
             name: socket-dir
           - mountPath: /registration
             name: registration-dir
+          - mountPath: /csi-data-dir
+            name: csi-data-dir
 
         - name: hostpath
           image: quay.io/k8scsi/hostpathplugin:v1.0.1
@@ -104,3 +106,8 @@ spec:
             path: /var/lib/kubelet/plugins
             type: Directory
           name: plugins-dir
+            # 'path' is where PV data is persisted on host.
+            # using /tmp is also possible while the PVs will not available after plugin container recreation or host reboot
+            path: /var/lib/csi-hostpath-data/
+            type: DirectoryOrCreate
+          name: csi-data-dir

pkg/hostpath/controllerserver.go

@@ -38,8 +38,8 @@ import (
 
 const (
 	deviceID           = "deviceID"
-	provisionRoot      = "/tmp/"
-	snapshotRoot       = "/tmp/"
+	provisionRoot      = "/csi-data-dir"
+	snapshotRoot       = "/csi-data-dir"
 	maxStorageCapacity = tib
 )