Fix driver name as per CSI spec

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

cmd/cephfs/main.go

@@ -27,7 +27,7 @@ import (
 
 var (
 	endpoint        = flag.String("endpoint", "unix://tmp/csi.sock", "CSI endpoint")
-	driverName      = flag.String("drivername", "csi-cephfsplugin", "name of the driver")
+	driverName      = flag.String("drivername", "cephfs.csi.ceph.com", "name of the driver")
 	nodeID          = flag.String("nodeid", "", "node id")
 	volumeMounter   = flag.String("volumemounter", "", "default volume mounter (possible options are 'kernel', 'fuse')")
 	metadataStorage = flag.String("metadatastorage", "", "metadata persistence method [node|k8s_configmap]")
@@ -43,6 +43,13 @@ func init() {
 
 func main() {
 
+	err := util.ValidateDriverName(*driverName)
+	if err != nil {
+		klog.Fatalln(err)
+	}
+	//update plugin name
+	cephfs.PluginFolder = cephfs.PluginFolder + *driverName
+
 	cp, err := util.CreatePersistanceStorage(cephfs.PluginFolder, *metadataStorage, *driverName)
 	if err != nil {
 		os.Exit(1)

cmd/rbd/main.go

@@ -27,7 +27,7 @@ import (
 
 var (
 	endpoint        = flag.String("endpoint", "unix://tmp/csi.sock", "CSI endpoint")
-	driverName      = flag.String("drivername", "csi-rbdplugin", "name of the driver")
+	driverName      = flag.String("drivername", "rbd.csi.ceph.com", "name of the driver")
 	nodeID          = flag.String("nodeid", "", "node id")
 	containerized   = flag.Bool("containerized", true, "whether run as containerized")
 	metadataStorage = flag.String("metadatastorage", "", "metadata persistence method [node|k8s_configmap]")
@@ -43,6 +43,13 @@ func init() {
 
 func main() {
 
+	err := util.ValidateDriverName(*driverName)
+	if err != nil {
+		klog.Fatalln(err)
+	}
+	//update plugin name
+	rbd.PluginFolder = rbd.PluginFolder + *driverName
+
 	cp, err := util.CreatePersistanceStorage(rbd.PluginFolder, *metadataStorage, *driverName)
 	if err != nil {
 		os.Exit(1)

deploy/cephfs/helm/templates/nodeplugin-daemonset.yaml

@@ -39,7 +39,11 @@ spec:
           lifecycle:
             preStop:
               exec:
-                  command: ["/bin/sh", "-c", "rm -rf /registration/csi-cephfsplugin /registration/csi-cephfsplugin-reg.sock"]          
+                  command: [
+                    "/bin/sh", "-c",
+                    'rm -rf /registration/{{ .Values.driverName }} 
+                  /registration/{{ .Values.driverName }}-reg.sock'
+                  ]
           env:
             - name: KUBE_NODE_NAME
               valueFrom:
@@ -64,11 +68,13 @@ spec:
             - "--nodeid=$(NODE_ID)"
             - "--endpoint=$(CSI_ENDPOINT)"
             - "--v=5"
-            - "--drivername=csi-cephfsplugin"
+            - "--drivername=$(DRIVER_NAME)"
             - "--metadatastorage=k8s_configmap"
           env:
             - name: HOST_ROOTFS
               value: "/rootfs"
+            - name: DRIVER_NAME
+              value: {{ .Values.driverName }}
             - name: NODE_ID
               valueFrom:
                 fieldRef:

deploy/cephfs/helm/templates/provisioner-statefulset.yaml

@@ -52,11 +52,13 @@ spec:
             - "--nodeid=$(NODE_ID)"
             - "--endpoint=$(CSI_ENDPOINT)"
             - "--v=5"
-            - "--drivername=csi-cephfsplugin"
+            - "--drivername=$(DRIVER_NAME)"
             - "--metadatastorage=k8s_configmap"
           env:
             - name: HOST_ROOTFS
               value: "/rootfs"
+            - name: DRIVER_NAME
+              value: {{ .Values.driverName }}
             - name: NODE_ID
               valueFrom:
                 fieldRef:

deploy/cephfs/helm/values.yaml

@@ -13,11 +13,11 @@ serviceAccounts:
     create: true
     name:
 
-socketDir: /var/lib/kubelet/plugins/csi-cephfsplugin
+socketDir: /var/lib/kubelet/plugins/cephfs.csi.ceph.com
 socketFile: csi.sock
 registrationDir: /var/lib/kubelet/plugins_registry
 volumeDevicesDir: /var/lib/kubelet/plugins/kubernetes.io/csi/volumeDevices
-
+driverName: cephfs.csi.ceph.com
 attacher:
   name: attacher
 

deploy/cephfs/kubernetes/csi-cephfsplugin-attacher.yaml

@@ -34,13 +34,13 @@ spec:
             - "--csi-address=$(ADDRESS)"
           env:
             - name: ADDRESS
-              value: /var/lib/kubelet/plugins/csi-cephfsplugin/csi.sock
+              value: /var/lib/kubelet/plugins/cephfs.csi.ceph.com/csi.sock
           imagePullPolicy: "IfNotPresent"
           volumeMounts:
             - name: socket-dir
-              mountPath: /var/lib/kubelet/plugins/csi-cephfsplugin
+              mountPath: /var/lib/kubelet/plugins/cephfs.csi.ceph.com
       volumes:
         - name: socket-dir
           hostPath:
-            path: /var/lib/kubelet/plugins/csi-cephfsplugin
+            path: /var/lib/kubelet/plugins/cephfs.csi.ceph.com
             type: DirectoryOrCreate

deploy/cephfs/kubernetes/csi-cephfsplugin-provisioner.yaml

@@ -34,11 +34,11 @@ spec:
             - "--v=5"
           env:
             - name: ADDRESS
-              value: /var/lib/kubelet/plugins/csi-cephfsplugin/csi-provisioner.sock
+              value: /var/lib/kubelet/plugins/cephfs.csi.ceph.com/csi-provisioner.sock
           imagePullPolicy: "IfNotPresent"
           volumeMounts:
             - name: socket-dir
-              mountPath: /var/lib/kubelet/plugins/csi-cephfsplugin
+              mountPath: /var/lib/kubelet/plugins/cephfs.csi.ceph.com
         - name: csi-cephfsplugin
           securityContext:
             privileged: true
@@ -49,7 +49,7 @@ spec:
             - "--nodeid=$(NODE_ID)"
             - "--endpoint=$(CSI_ENDPOINT)"
             - "--v=5"
-            - "--drivername=csi-cephfsplugin"
+            - "--drivername=cephfs.csi.ceph.com"
             - "--metadatastorage=k8s_configmap"
           env:
             - name: NODE_ID
@@ -61,11 +61,11 @@ spec:
                 fieldRef:
                   fieldPath: metadata.namespace
             - name: CSI_ENDPOINT
-              value: unix://var/lib/kubelet/plugins/csi-cephfsplugin/csi-provisioner.sock
+              value: unix://var/lib/kubelet/plugins/cephfs.csi.ceph.com/csi-provisioner.sock
           imagePullPolicy: "IfNotPresent"
           volumeMounts:
             - name: socket-dir
-              mountPath: /var/lib/kubelet/plugins/csi-cephfsplugin
+              mountPath: /var/lib/kubelet/plugins/cephfs.csi.ceph.com
             - name: host-sys
               mountPath: /sys
             - name: lib-modules
@@ -76,7 +76,7 @@ spec:
       volumes:
         - name: socket-dir
           hostPath:
-            path: /var/lib/kubelet/plugins/csi-cephfsplugin
+            path: /var/lib/kubelet/plugins/cephfs.csi.ceph.com
             type: DirectoryOrCreate
         - name: host-sys
           hostPath:

deploy/cephfs/kubernetes/csi-cephfsplugin.yaml

@@ -23,7 +23,7 @@ spec:
           args:
             - "--v=5"
             - "--csi-address=/csi/csi.sock"
-            - "--kubelet-registration-path=/var/lib/kubelet/plugins/csi-cephfsplugin/csi.sock"
+            - "--kubelet-registration-path=/var/lib/kubelet/plugins/cephfs.csi.ceph.com/csi.sock"
           lifecycle:
             preStop:
               exec:
@@ -53,7 +53,7 @@ spec:
             - "--nodeid=$(NODE_ID)"
             - "--endpoint=$(CSI_ENDPOINT)"
             - "--v=5"
-            - "--drivername=csi-cephfsplugin"
+            - "--drivername=cephfs.csi.ceph.com"
             - "--metadatastorage=k8s_configmap"
           env:
             - name: NODE_ID
@@ -65,11 +65,11 @@ spec:
                 fieldRef:
                   fieldPath: metadata.namespace
             - name: CSI_ENDPOINT
-              value: unix://var/lib/kubelet/plugins/csi-cephfsplugin/csi.sock
+              value: unix://var/lib/kubelet/plugins/cephfs.csi.ceph.com/csi.sock
           imagePullPolicy: "IfNotPresent"
           volumeMounts:
             - name: plugin-dir
-              mountPath: /var/lib/kubelet/plugins/csi-cephfsplugin
+              mountPath: /var/lib/kubelet/plugins/cephfs.csi.ceph.com
             - name: csi-plugins-dir
               mountPath: /var/lib/kubelet/plugins/kubernetes.io/csi
               mountPropagation: "Bidirectional"
@@ -86,7 +86,7 @@ spec:
       volumes:
         - name: plugin-dir
           hostPath:
-            path: /var/lib/kubelet/plugins/csi-cephfsplugin/
+            path: /var/lib/kubelet/plugins/cephfs.csi.ceph.com/
             type: DirectoryOrCreate
         - name: csi-plugins-dir
           hostPath:

deploy/rbd/helm/templates/nodeplugin-daemonset.yaml

@@ -39,7 +39,11 @@ spec:
           lifecycle:
             preStop:
               exec:
-                  command: ["/bin/sh", "-c", "rm -rf /registration/csi-rbdplugin /registration/csi-rbdplugin-reg.sock"]          
+                  command: [
+                    "/bin/sh", "-c",
+                    'rm -rf /registration/{{ .Values.driverName }} 
+                  /registration/{{ .Values.driverName }}-reg.sock'
+                  ]
           env:
             - name: KUBE_NODE_NAME
               valueFrom:
@@ -64,12 +68,14 @@ spec:
             - "--nodeid=$(NODE_ID)"
             - "--endpoint=$(CSI_ENDPOINT)"
             - "--v=5"
-            - "--drivername=csi-rbdplugin"
+            - "--drivername=$(DRIVER_NAME)"
             - "--containerized=true"
             - "--metadatastorage=k8s_configmap"
           env:
             - name: HOST_ROOTFS
               value: "/rootfs"
+            - name: DRIVER_NAME
+              value: {{ .Values.driverName }}
             - name: NODE_ID
               valueFrom:
                 fieldRef:

deploy/rbd/helm/templates/provisioner-statefulset.yaml

@@ -69,12 +69,14 @@ spec:
             - "--nodeid=$(NODE_ID)"
             - "--endpoint=$(CSI_ENDPOINT)"
             - "--v=5"
-            - "--drivername=csi-rbdplugin"
+            - "--drivername=$(DRIVER_NAME)"
             - "--containerized=true"
             - "--metadatastorage=k8s_configmap"
           env:
             - name: HOST_ROOTFS
               value: "/rootfs"
+            - name: DRIVER_NAME
+              value: {{ .Values.driverName }}
             - name: NODE_ID
               valueFrom:
                 fieldRef:

deploy/rbd/helm/values.yaml

@@ -13,10 +13,11 @@ serviceAccounts:
     create: true
     name:
 
-socketDir: /var/lib/kubelet/plugins/csi-rbdplugin
+socketDir: /var/lib/kubelet/plugins/rbd.csi.ceph.com
 socketFile: csi.sock
 registrationDir: /var/lib/kubelet/plugins_registry
 volumeDevicesDir: /var/lib/kubelet/plugins/kubernetes.io/csi/volumeDevices
+driverName: rbd.csi.ceph.com
 
 attacher:
   name: attacher

deploy/rbd/kubernetes/csi-rbdplugin-attacher.yaml

@@ -34,13 +34,13 @@ spec:
             - "--csi-address=$(ADDRESS)"
           env:
             - name: ADDRESS
-              value: /var/lib/kubelet/plugins/csi-rbdplugin/csi.sock
+              value: /var/lib/kubelet/plugins/rbd.csi.ceph.com/csi.sock
           imagePullPolicy: "IfNotPresent"
           volumeMounts:
             - name: socket-dir
-              mountPath: /var/lib/kubelet/plugins/csi-rbdplugin
+              mountPath: /var/lib/kubelet/plugins/rbd.csi.ceph.com
       volumes:
         - name: socket-dir
           hostPath:
-            path: /var/lib/kubelet/plugins/csi-rbdplugin
+            path: /var/lib/kubelet/plugins/rbd.csi.ceph.com
             type: DirectoryOrCreate

deploy/rbd/kubernetes/csi-rbdplugin-provisioner.yaml

@@ -34,11 +34,11 @@ spec:
             - "--v=5"
           env:
             - name: ADDRESS
-              value: /var/lib/kubelet/plugins/csi-rbdplugin/csi-provisioner.sock
+              value: /var/lib/kubelet/plugins/rbd.csi.ceph.com/csi-provisioner.sock
           imagePullPolicy: "IfNotPresent"
           volumeMounts:
             - name: socket-dir
-              mountPath: /var/lib/kubelet/plugins/csi-rbdplugin
+              mountPath: /var/lib/kubelet/plugins/rbd.csi.ceph.com
         - name: csi-snapshotter
           image: quay.io/k8scsi/csi-snapshotter:v1.0.1
           args:
@@ -47,13 +47,13 @@ spec:
             - "--v=5"
           env:
             - name: ADDRESS
-              value: /var/lib/kubelet/plugins/csi-rbdplugin/csi-provisioner.sock
+              value: /var/lib/kubelet/plugins/rbd.csi.ceph.com/csi-provisioner.sock
           imagePullPolicy: Always
           securityContext:
             privileged: true
           volumeMounts:
             - name: socket-dir
-              mountPath: /var/lib/kubelet/plugins/csi-rbdplugin
+              mountPath: /var/lib/kubelet/plugins/rbd.csi.ceph.com
         - name: csi-rbdplugin
           securityContext:
             privileged: true
@@ -64,7 +64,7 @@ spec:
             - "--nodeid=$(NODE_ID)"
             - "--endpoint=$(CSI_ENDPOINT)"
             - "--v=5"
-            - "--drivername=csi-rbdplugin"
+            - "--drivername=rbd.csi.ceph.com"
             - "--containerized=true"
             - "--metadatastorage=k8s_configmap"
           env:
@@ -79,11 +79,11 @@ spec:
                 fieldRef:
                   fieldPath: metadata.namespace
             - name: CSI_ENDPOINT
-              value: unix://var/lib/kubelet/plugins/csi-rbdplugin/csi-provisioner.sock
+              value: unix://var/lib/kubelet/plugins/rbd.csi.ceph.com/csi-provisioner.sock
           imagePullPolicy: "IfNotPresent"
           volumeMounts:
             - name: socket-dir
-              mountPath: /var/lib/kubelet/plugins/csi-rbdplugin
+              mountPath: /var/lib/kubelet/plugins/rbd.csi.ceph.com
             - mountPath: /dev
               name: host-dev
             - mountPath: /rootfs
@@ -108,5 +108,5 @@ spec:
             path: /lib/modules
         - name: socket-dir
           hostPath:
-            path: /var/lib/kubelet/plugins/csi-rbdplugin
+            path: /var/lib/kubelet/plugins/rbd.csi.ceph.com
             type: DirectoryOrCreate

deploy/rbd/kubernetes/csi-rbdplugin.yaml

@@ -24,14 +24,14 @@ spec:
           args:
             - "--v=5"
             - "--csi-address=/csi/csi.sock"
-            - "--kubelet-registration-path=/var/lib/kubelet/plugins/csi-rbdplugin/csi.sock"
+            - "--kubelet-registration-path=/var/lib/kubelet/plugins/rbd.csi.ceph.com/csi.sock"
           lifecycle:
             preStop:
               exec:
                 command: [
                   "/bin/sh", "-c",
-                  "rm -rf /registration/csi-rbdplugin \
+                  "rm -rf /registration/rbd.csi.ceph.com \
-                  /registration/csi-rbdplugin-reg.sock"
+                  /registration/rbd.csi.ceph.com-reg.sock"
                 ]
           env:
             - name: KUBE_NODE_NAME
@@ -54,7 +54,7 @@ spec:
             - "--nodeid=$(NODE_ID)"
             - "--endpoint=$(CSI_ENDPOINT)"
             - "--v=5"
-            - "--drivername=csi-rbdplugin"
+            - "--drivername=rbd.csi.ceph.com"
             - "--containerized=true"
             - "--metadatastorage=k8s_configmap"
           env:
@@ -69,11 +69,11 @@ spec:
                 fieldRef:
                   fieldPath: metadata.namespace
             - name: CSI_ENDPOINT
-              value: unix://var/lib/kubelet/plugins_registry/csi-rbdplugin/csi.sock
+              value: unix://var/lib/kubelet/plugins_registry/rbd.csi.ceph.com/csi.sock
           imagePullPolicy: "IfNotPresent"
           volumeMounts:
             - name: plugin-dir
-              mountPath: /var/lib/kubelet/plugins_registry/csi-rbdplugin
+              mountPath: /var/lib/kubelet/plugins_registry/rbd.csi.ceph.com
             - name: pods-mount-dir
               mountPath: /var/lib/kubelet/pods
               mountPropagation: "Bidirectional"
@@ -92,7 +92,7 @@ spec:
       volumes:
         - name: plugin-dir
           hostPath:
-            path: /var/lib/kubelet/plugins/csi-rbdplugin
+            path: /var/lib/kubelet/plugins/rbd.csi.ceph.com
             type: DirectoryOrCreate
         - name: plugin-mount-dir
           hostPath:

docs/deploy-cephfs.md

@@ -30,7 +30,7 @@ make image-cephfsplugin
 Option              | Default value         | Description
 --------------------|-----------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 `--endpoint`        | `unix://tmp/csi.sock` | CSI endpoint, must be a UNIX socket
-`--drivername`      | `csi-cephfsplugin`    | name of the driver (Kubernetes: `provisioner` field in StorageClass must correspond to this value)
+`--drivername`      | `cephfs.csi.ceph.com`    | name of the driver (Kubernetes: `provisioner` field in StorageClass must correspond to this value)
 `--nodeid`          | _empty_               | This node's ID
 `--volumemounter`   | _empty_               | default volume mounter. Available options are `kernel` and `fuse`. This is the mount method used if volume parameters don't specify otherwise. If left unspecified, the driver will first probe for `ceph-fuse` in system's path and will choose Ceph kernel client if probing failed.
 `--metadatastorage` | _empty_               | Whether metadata should be kept on node as file or in a k8s configmap (`node` or `k8s_configmap`)

docs/deploy-rbd.md

@@ -29,7 +29,7 @@ make image-rbdplugin
 Option | Default value | Description
 ------ | ------------- | -----------
 `--endpoint` | `unix://tmp/csi.sock` | CSI endpoint, must be a UNIX socket
-`--drivername` | `csi-cephfsplugin` | name of the driver (Kubernetes: `provisioner` field in StorageClass must correspond to this value)
+`--drivername` | `rbd.csi.ceph.com` | name of the driver (Kubernetes: `provisioner` field in StorageClass must correspond to this value)
 `--nodeid` | _empty_ | This node's ID
 `--containerized` | true | Whether running in containerized mode
 `--metadatastorage` | _empty_ | Whether should metadata be kept on node as file or in a k8s configmap (`node` or `k8s_configmap`)

examples/README.md

@@ -108,7 +108,7 @@ one of your Ceph pod.
 
 To restore the snapshot to a new PVC, deploy
 [pvc-restore.yaml](./rbd/pvc-restore.yaml) and a testing pod
-[pod-restore.yaml](./rbd/pvc-restore.yaml):
+[pod-restore.yaml](./rbd/pod-restore.yaml):
 
 ```bash
 kubectl create -f pvc-restore.yaml
@@ -133,7 +133,7 @@ apiVersion: storage.k8s.io/v1
 kind: StorageClass
 metadata:
    name: csi-rbd
-provisioner: csi-rbdplugin
+provisioner: rbd.csi.ceph.com
 parameters:
     monitors: rook-ceph-mon-b.rook-ceph.svc.cluster.local:6789
     pool: rbd

examples/cephfs/storageclass.yaml

@@ -3,7 +3,7 @@ apiVersion: storage.k8s.io/v1
 kind: StorageClass
 metadata:
   name: csi-cephfs
-provisioner: csi-cephfsplugin
+provisioner: cephfs.csi.ceph.com
 parameters:
   # Comma separated list of Ceph monitors
   # if using FQDN, make sure csi plugin's dns policy is appropriate.

examples/rbd/snapshotclass.yaml

@@ -3,7 +3,7 @@ apiVersion: snapshot.storage.k8s.io/v1alpha1
 kind: VolumeSnapshotClass
 metadata:
   name: csi-rbdplugin-snapclass
-snapshotter: csi-rbdplugin
+snapshotter: rbd.csi.ceph.com
 parameters:
   pool: rbd
   monitors: mon1:port,mon2:port,...

examples/rbd/storageclass.yaml

@@ -3,7 +3,7 @@ apiVersion: storage.k8s.io/v1
 kind: StorageClass
 metadata:
    name: csi-rbd
-provisioner: csi-rbdplugin
+provisioner: rbd.csi.ceph.com
 parameters:
    # Comma separated list of Ceph monitors
    # if using FQDN, make sure csi plugin's dns policy is appropriate.

pkg/cephfs/driver.go

@@ -19,19 +19,21 @@ package cephfs
 import (
 	"k8s.io/klog"
 
-	"github.com/ceph/ceph-csi/pkg/csi-common"
+	csicommon "github.com/ceph/ceph-csi/pkg/csi-common"
 	"github.com/ceph/ceph-csi/pkg/util"
 
 	"github.com/container-storage-interface/spec/lib/go/csi"
 )
 
 const (
-	// PluginFolder defines the location of ceph plugin
+
-	PluginFolder = "/var/lib/kubelet/plugins/csi-cephfsplugin"
 	// version of ceph driver
 	version = "1.0.0"
 )
 
+// PluginFolder defines the location of ceph plugin
+var PluginFolder = "/var/lib/kubelet/plugins/"
+
 // Driver contains the default identity,node and controller struct
 type Driver struct {
 	cd *csicommon.CSIDriver

pkg/cephfs/identityserver.go

@@ -19,7 +19,7 @@ package cephfs
 import (
 	"context"
 
-	"github.com/ceph/ceph-csi/pkg/csi-common"
+	csicommon "github.com/ceph/ceph-csi/pkg/csi-common"
 
 	"github.com/container-storage-interface/spec/lib/go/csi"
 )

pkg/cephfs/volume.go

@@ -25,12 +25,15 @@ import (
 )
 
 const (
-	cephRootPrefix  = PluginFolder + "/controller/volumes/root-"
 	cephVolumesRoot = "csi-volumes"
 
 	namespacePrefix = "ns-"
 )
 
+var (
+	cephRootPrefix = PluginFolder + "/controller/volumes/root-"
+)
+
 func getCephRootPathLocal(volID volumeID) string {
 	return cephRootPrefix + string(volID)
 }

pkg/rbd/identityserver.go

@@ -19,7 +19,7 @@ package rbd
 import (
 	"context"
 
-	"github.com/ceph/ceph-csi/pkg/csi-common"
+	csicommon "github.com/ceph/ceph-csi/pkg/csi-common"
 
 	"github.com/container-storage-interface/spec/lib/go/csi"
 )

pkg/rbd/rbd.go

@@ -17,7 +17,7 @@ limitations under the License.
 package rbd
 
 import (
-	"github.com/ceph/ceph-csi/pkg/csi-common"
+	csicommon "github.com/ceph/ceph-csi/pkg/csi-common"
 	"github.com/ceph/ceph-csi/pkg/util"
 
 	"github.com/container-storage-interface/spec/lib/go/csi"
@@ -29,11 +29,13 @@ import (
 
 // PluginFolder defines the location of rbdplugin
 const (
-	PluginFolder      = "/var/lib/kubelet/plugins/csi-rbdplugin"
 	rbdDefaultAdminID = "admin"
 	rbdDefaultUserID  = rbdDefaultAdminID
 )
 
+// PluginFolder defines the location of ceph plugin
+var PluginFolder = "/var/lib/kubelet/plugins/"
+
 // Driver contains the default identity,node and controller struct
 type Driver struct {
 	cd *csicommon.CSIDriver

pkg/util/k8scmcache.go

@@ -25,7 +25,7 @@ import (
 	"github.com/pkg/errors"
 	"k8s.io/klog"
 
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	apierrs "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	k8s "k8s.io/client-go/kubernetes"

pkg/util/util.go

@@ -19,7 +19,10 @@ package util
 import (
 	"os"
 	"path"
+	"strings"
 
+	"github.com/pkg/errors"
+	"k8s.io/apimachinery/pkg/util/validation"
 	"k8s.io/klog"
 )
 
@@ -47,3 +50,23 @@ func CreatePersistanceStorage(sPath, metaDataStore, driverName string) (CachePer
 func createPersistentStorage(persistentStoragePath string) error {
 	return os.MkdirAll(persistentStoragePath, os.FileMode(0755))
 }
+
+// ValidateDriverName validates the driver name
+func ValidateDriverName(driverName string) error {
+	if len(driverName) == 0 {
+		return errors.New("driver name is empty")
+	}
+
+	if len(driverName) > 63 {
+		return errors.New("driver name length should be less than 63 chars")
+	}
+	var err error
+	for _, msg := range validation.IsDNS1123Subdomain(strings.ToLower(driverName)) {
+		if err == nil {
+			err = errors.New(msg)
+			continue
+		}
+		err = errors.Wrap(err, msg)
+	}
+	return err
+}