Fix driver name as per CSI spec

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

cephfs/main.go

@@ -32,7 +32,7 @@ func init() {
 
 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", "node", "metadata persistence method [node|k8s_configmap]")
@@ -41,6 +41,14 @@ var (
 func main() {
 	flag.Parse()
 
+	err := util.ValidateDriverName(*driverName)
+	if err != nil {
+		glog.Errorf("failed to validate driver name: %v", err)
+		os.Exit(1)
+	}
+	//update plugin name
+	cephfs.PluginFolder = cephfs.PluginFolder + *driverName
+
 	if err := createPersistentStorage(path.Join(cephfs.PluginFolder, "controller")); err != nil {
 		glog.Errorf("failed to create persistent storage for controller: %v", err)
 		os.Exit(1)

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

@@ -33,13 +33,13 @@ 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

@@ -29,18 +29,18 @@ spec:
         - name: csi-provisioner
           image: quay.io/k8scsi/csi-provisioner:v0.3.0
           args:
-            - "--provisioner=csi-cephfsplugin"
+            - "--provisioner=cephfs.csi.ceph.com"
             - "--csi-address=$(ADDRESS)"
             - "--v=5"
           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.yaml

@@ -25,16 +25,16 @@ spec:
             - "--kubelet-registration-path=$(DRIVER_REG_SOCK_PATH)"
           env:
             - name: ADDRESS
-              value: /var/lib/kubelet/plugins/csi-cephfsplugin/csi.sock
+              value: /var/lib/kubelet/plugins/cephfs.csi.ceph.com/csi.sock
             - name: DRIVER_REG_SOCK_PATH
-              value: /var/lib/kubelet/plugins/csi-cephfsplugin/csi.sock
+              value: /var/lib/kubelet/plugins/cephfs.csi.ceph.com/csi.sock
             - name: KUBE_NODE_NAME
               valueFrom:
                 fieldRef:
                   fieldPath: spec.nodeName
           volumeMounts:
             - name: socket-dir
-              mountPath: /var/lib/kubelet/plugins/csi-cephfsplugin
+              mountPath: /var/lib/kubelet/plugins/cephfs.csi.ceph.com
             - name: registration-dir
               mountPath: /registration
         - name: csi-cephfsplugin
@@ -48,7 +48,7 @@ spec:
             - "--nodeid=$(NODE_ID)"
             - "--endpoint=$(CSI_ENDPOINT)"
             - "--v=5"
-            - "--drivername=csi-cephfsplugin"
+            - "--drivername=cephfs.csi.ceph.com"
             - "--metadatastorage=k8s_configmap"
           env:
             - name: NODE_ID
@@ -60,11 +60,11 @@ 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: pods-mount-dir
               mountPath: /var/lib/kubelet/pods
               mountPropagation: "Bidirectional"
@@ -78,7 +78,7 @@ 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: registration-dir
           hostPath:
@@ -90,7 +90,7 @@ spec:
             type: Directory
         - 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/rbd/helm/templates/nodeplugin-daemonset.yaml

@@ -64,7 +64,7 @@ spec:
             - "--nodeid=$(NODE_ID)"
             - "--endpoint=$(CSI_ENDPOINT)"
             - "--v=5"
-            - "--drivername=csi-rbdplugin"
+            - "--drivername=rbd.csi.ceph.com"
             - "--containerized=true"            
           env:
             - name: HOST_ROOTFS

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

@@ -25,7 +25,7 @@ spec:
         - name: csi-provisioner
           image: "{{ .Values.provisioner.image.repository }}:{{ .Values.provisioner.image.tag }}"
           args:
-            - "--provisioner=csi-rbdplugin"
+            - "--provisioner=rbd.csi.ceph.com"
             - "--csi-address=$(ADDRESS)"
             - "--v=5"
           env:

deploy/rbd/helm/values.yaml

@@ -12,7 +12,7 @@ serviceAccounts:
     create: true
     name:
 
-socketDir: /var/lib/kubelet/plugins/csi-rbdplugin
+socketDir: /var/lib/kubelet/plugins/rbd.csi.ceph.com
 socketFile: csi.sock
 
 attacher:

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

@@ -33,13 +33,13 @@ 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

@@ -29,18 +29,18 @@ spec:
         - name: csi-provisioner
           image: quay.io/k8scsi/csi-provisioner:v0.3.0
           args:
-            - "--provisioner=csi-rbdplugin"
+            - "--provisioner=rbd.csi.ceph.com"
             - "--csi-address=$(ADDRESS)"
             - "--v=5"
           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.yaml

@@ -26,16 +26,16 @@ spec:
             - "--kubelet-registration-path=$(DRIVER_REG_SOCK_PATH)"
           env:
             - name: ADDRESS
-              value: /var/lib/kubelet/plugins/csi-rbdplugin/csi.sock
+              value: /var/lib/kubelet/plugins/rbd.csi.ceph.com/csi.sock
             - name: DRIVER_REG_SOCK_PATH
-              value: /var/lib/kubelet/plugins/csi-rbdplugin/csi.sock
+              value: /var/lib/kubelet/plugins/rbd.csi.ceph.com/csi.sock
             - name: KUBE_NODE_NAME
               valueFrom:
                 fieldRef:
                   fieldPath: spec.nodeName
           volumeMounts:
             - name: socket-dir
-              mountPath: /var/lib/kubelet/plugins/csi-rbdplugin
+              mountPath: /var/lib/kubelet/plugins/rbd.csi.ceph.com
             - name: registration-dir
               mountPath: /registration
         - name: csi-rbdplugin
@@ -49,7 +49,7 @@ spec:
             - "--nodeid=$(NODE_ID)"
             - "--endpoint=$(CSI_ENDPOINT)"
             - "--v=5"
-            - "--drivername=csi-rbdplugin"
+            - "--drivername=rbd.csi.ceph.com"
             - "--containerized=true"
             - "--metadatastorage=k8s_configmap"
           env:
@@ -64,11 +64,11 @@ spec:
                 fieldRef:
                   fieldPath: metadata.namespace
             - name: CSI_ENDPOINT
-              value: unix://var/lib/kubelet/plugins/csi-rbdplugin/csi.sock
+              value: unix://var/lib/kubelet/plugins/rbd.csi.ceph.com/csi.sock
           imagePullPolicy: "IfNotPresent"
           volumeMounts:
             - name: plugin-dir
-              mountPath: /var/lib/kubelet/plugins/csi-rbdplugin
+              mountPath: /var/lib/kubelet/plugins/rbd.csi.ceph.com
             - name: pods-mount-dir
               mountPath: /var/lib/kubelet/pods
               mountPropagation: "Bidirectional"
@@ -84,7 +84,7 @@ 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: registration-dir
           hostPath:
@@ -96,7 +96,7 @@ spec:
             type: Directory
         - name: socket-dir
           hostPath:
-            path: /var/lib/kubelet/plugins/csi-rbdplugin
+            path: /var/lib/kubelet/plugins/rbd.csi.ceph.com
             type: DirectoryOrCreate
         - name: host-dev
           hostPath:

docs/deploy-cephfs.md

@@ -25,7 +25,7 @@ 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

@@ -25,7 +25,7 @@ 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/rbd/csi-snapshotter.yaml

@@ -51,6 +51,6 @@ spec:
           imagePullPolicy: Always
       volumes:
         - hostPath:
-            path: /var/lib/kubelet/plugins/csi-rbdplugin
+            path: /var/lib/kubelet/plugins/rbd.csi.ceph.com
             type: DirectoryOrCreate
           name: socket-dir

pkg/cephfs/driver.go

@@ -20,18 +20,21 @@ import (
 	"github.com/golang/glog"
 
 	"github.com/container-storage-interface/spec/lib/go/csi/v0"
-	"github.com/kubernetes-csi/drivers/pkg/csi-common"
+	csicommon "github.com/kubernetes-csi/drivers/pkg/csi-common"
 
 	"github.com/ceph/ceph-csi/pkg/util"
 )
 
 const (
-	// PluginFolder is the kubelet plugin directory for cephfs plugin
-	PluginFolder = "/var/lib/kubelet/plugins/csi-cephfsplugin"
 	// Version of the cephfs csi driver
 	Version = "0.3.0"
 )
 
+var (
+	// PluginFolder is the kubelet plugin directory for cephfs plugin
+	PluginFolder = "/var/lib/kubelet/plugins/"
+)
+
 type cephfsDriver struct {
 	driver *csicommon.CSIDriver
 

pkg/cephfs/volume.go

@@ -23,12 +23,15 @@ 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/rbd.go

@@ -21,20 +21,23 @@ import (
 
 	"github.com/ceph/ceph-csi/pkg/util"
 	"github.com/container-storage-interface/spec/lib/go/csi/v0"
-	"github.com/kubernetes-csi/drivers/pkg/csi-common"
+	csicommon "github.com/kubernetes-csi/drivers/pkg/csi-common"
 
 	"k8s.io/kubernetes/pkg/util/mount"
 	"k8s.io/kubernetes/pkg/util/nsenter"
 	"k8s.io/utils/exec"
 )
 
-// PluginFolder defines the location of rbdplugin
 const (
-	PluginFolder      = "/var/lib/kubelet/plugins/csi-rbdplugin"
 	rbdDefaultAdminId = "admin"
 	rbdDefaultUserId  = rbdDefaultAdminId
 )
 
+var (
+	// PluginFolder defines the location of rbdplugin
+	PluginFolder = "/var/lib/kubelet/plugins/"
+)
+
 type rbd struct {
 	driver *csicommon.CSIDriver
 

pkg/util/util.go

@@ -0,0 +1,41 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package util
+
+import (
+	"strings"
+
+	"github.com/pkg/errors"
+	"k8s.io/apimachinery/pkg/util/validation"
+)
+
+// 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
+}

rbd/main.go

@@ -32,7 +32,7 @@ func init() {
 
 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", "node", "metadata persistence method [node|k8s_configmap]")
@@ -41,6 +41,14 @@ var (
 func main() {
 	flag.Parse()
 
+	err := util.ValidateDriverName(*driverName)
+	if err != nil {
+		glog.Errorf("failed to validate driver name: %v", err)
+		os.Exit(1)
+	}
+	//update plugin name
+	rbd.PluginFolder = rbd.PluginFolder + *driverName
+
 	if err := createPersistentStorage(path.Join(rbd.PluginFolder, "controller")); err != nil {
 		glog.Errorf("failed to create persistent storage for controller %v", err)
 		os.Exit(1)