add scripts to make it configurable for users when add/removing a dir

README.md

@@ -129,6 +129,14 @@ data:
                 }
                 ]
         }
+  setup: |-
+        #!/bin/sh
+        path=$1
+        mkdir -m 0777 -p ${path}
+  teardown: |-
+        #!/bin/sh
+        path=$1
+        rm -rf ${path}
 
 ```
 

deploy/chart/README.md

@@ -71,6 +71,8 @@ default values.
 | `nodeSelector`                      | Node labels for Local Path Provisioner pod assignment                           | `{}`                                                                                |
 | `tolerations`                       | Node taints to tolerate                                                         | `[]`                                                                                |
 | `affinity`                          | Pod affinity                                                                    | `{}`                                                                                |
+| `setup`                             | Configuration of script to execute setup operations on each node                | #!/bin/sh<br>path=$1<br>mkdir -m 0777 -p ${path}                                    |
+| `teardown`                          | Configuration of script to execute teardown operations on each node             | #!/bin/sh<br>path=$1<br>rm -rf ${path}                                            |
 
 Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
 

deploy/chart/templates/configmap.yaml

@@ -11,3 +11,7 @@ data:
     {
       "nodePathMap": {{ .Values.nodePathMap | toPrettyJson | nindent 8 }}
     }
+  setup: |-
+    {{ .Values.setup | nindent 4 }}
+  teardown: |-
+    {{ .Values.teardown | nindent 4 }}

deploy/chart/values.yaml

@@ -78,3 +78,13 @@ nodeSelector: {}
 tolerations: []
 
 affinity: {}
+
+setup: |-
+  #!/bin/sh
+  path=$1
+  mkdir -m 0777 -p ${path}
+
+teardown: |-
+  #!/bin/sh
+  path=$1
+  rm -rf ${path}

deploy/example-config.yaml

@@ -21,4 +21,12 @@ data:
                 }
                 ]
         }
+  setup: |-
+        #!/bin/sh
+        path=$1
+        mkdir -m 0777 -p ${path}
+  teardown: |-
+        #!/bin/sh
+        path=$1
+        rm -rf ${path}
 

deploy/local-path-storage.yaml

@@ -102,4 +102,12 @@ data:
                 }
                 ]
         }
+  setup: |-
+        #!/bin/sh
+        path=$1
+        mkdir -m 0777 -p ${path}
+  teardown: |-
+        #!/bin/sh
+        path=$1
+        rm -rf ${path}
 

provisioner.go

@@ -190,9 +190,8 @@ func (p *LocalPathProvisioner) Provision(opts pvController.ProvisionOptions) (*v
 	logrus.Infof("Creating volume %v at %v:%v", name, node.Name, path)
 
 	createCmdsForPath := []string{
-		"mkdir",
-		"-m", "0777",
-		"-p",
+		"/bin/sh",
+		"/script/setup",
 	}
 	if err := p.createHelperPod(ActionTypeCreate, createCmdsForPath, name, path, node.Name); err != nil {
 		return nil, err
@@ -248,7 +247,7 @@ func (p *LocalPathProvisioner) Delete(pv *v1.PersistentVolume) (err error) {
 	}
 	if pv.Spec.PersistentVolumeReclaimPolicy != v1.PersistentVolumeReclaimRetain {
 		logrus.Infof("Deleting volume %v at %v:%v", pv.Name, node, path)
-		cleanupCmdsForPath := []string{"rm", "-rf"}
+		cleanupCmdsForPath := []string{"/bin/sh", "/script/teardown"}
 		if err := p.createHelperPod(ActionTypeDelete, cleanupCmdsForPath, pv.Name, path, node); err != nil {
 			logrus.Infof("clean up volume %v failed: %v", pv.Name, err)
 			return err
@@ -324,6 +323,7 @@ func (p *LocalPathProvisioner) createHelperPod(action ActionType, cmdsForPath []
 	helperPod := &v1.Pod{
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      string(action) + "-" + name,
+			Namespace: p.namespace,
 		},
 		Spec: v1.PodSpec{
 			RestartPolicy: v1.RestartPolicyNever,
@@ -344,6 +344,11 @@ func (p *LocalPathProvisioner) createHelperPod(action ActionType, cmdsForPath []
 							ReadOnly:  false,
 							MountPath: "/data/",
 						},
+						{
+							Name:      "script",
+							ReadOnly:  false,
+							MountPath: "/script",
+						},
 					},
 					ImagePullPolicy: v1.PullIfNotPresent,
 				},
@@ -358,6 +363,26 @@ func (p *LocalPathProvisioner) createHelperPod(action ActionType, cmdsForPath []
 						},
 					},
 				},
+				{
+					Name: "script",
+					VolumeSource: v1.VolumeSource{
+						ConfigMap: &v1.ConfigMapVolumeSource{
+							LocalObjectReference: v1.LocalObjectReference{
+								Name: "local-path-config",
+							},
+							Items: []v1.KeyToPath{
+								{
+									Key:  "setup",
+									Path: "setup",
+								},
+								{
+									Key:  "teardown",
+									Path: "teardown",
+								},
+							},
+						},
+					},
+				},
 			},
 		},
 	}