cephfs: Support mount option on nodeplugin

add mount options on nodeplugin side

Signed-off-by: takeaki-matsumoto <takeaki.matsumoto@linecorp.com>

charts/ceph-csi-cephfs/README.md

@@ -99,6 +99,8 @@ charts and their default values.
 | `nodeplugin.nodeSelector`                      | Kubernetes `nodeSelector` to add to the Daemonset                                                                                                    | `{}`                                               |
 | `nodeplugin.tolerations`                       | List of Kubernetes `tolerations` to add to the Daemonset                                                                                             | `{}`                                               |
 | `nodeplugin.forcecephkernelclient`             | Set to true to enable Ceph Kernel clients on kernel < 4.17 which support quotas                                                                      | `true`                                             |
+| `nodeplugin.kernelmountoptions`                | Comma separated string of mount options accepted by cephfs kernel mounter quotas                                                                      | `""`                                               |
+| `nodeplugin.fusemountoptions`                  | Comma separated string of mount options accepted by ceph-fuse mounter quotas                                                                      | `""`                                               |
 | `nodeplugin.podSecurityPolicy.enabled`         | If true, create & use [Pod Security Policy resources](https://kubernetes.io/docs/concepts/policy/pod-security-policy/).                              | `false`                                            |
 | `provisioner.name`                             | Specifies the name of provisioner                                                                                                                    | `provisioner`                                      |
 | `provisioner.replicaCount`                     | Specifies the replicaCount                                                                                                                           | `3`                                                |

charts/ceph-csi-cephfs/templates/nodeplugin-daemonset.yaml

@@ -72,6 +72,8 @@ spec:
 {{- if .Values.nodeplugin.forcecephkernelclient }}
             - "--forcecephkernelclient={{ .Values.nodeplugin.forcecephkernelclient }}"
 {{- end }}
+            - "--kernelmountoptions={{ .Values.nodeplugin.kernelmountoptions }}"
+            - "--fusemountoptions={{ .Values.nodeplugin.fusemountoptions }}"
             - "--endpoint=$(CSI_ENDPOINT)"
             - "--v={{ .Values.logLevel }}"
             - "--drivername=$(DRIVER_NAME)"

charts/ceph-csi-cephfs/values.yaml

@@ -102,6 +102,11 @@ nodeplugin:
   # on kernel < 4.17 which support quotas
   # forcecephkernelclient: true
 
+  # common mount options to apply all mounting
+  # example: kernelmountoptions: "recover_session=clean"
+  kernelmountoptions: ""
+  fusemountoptions: ""
+
   # If true, create & use Pod Security Policy resources
   # https://kubernetes.io/docs/concepts/policy/pod-security-policy/
   podSecurityPolicy:

cmd/cephcsi.go

@@ -88,6 +88,16 @@ func init() {
 		"forcecephkernelclient",
 		false,
 		"enable Ceph Kernel clients on kernel < 4.17 which support quotas")
+	flag.StringVar(
+		&conf.KernelMountOptions,
+		"kernelmountoptions",
+		"",
+		"Comma separated string of mount options accepted by cephfs kernel mounter")
+	flag.StringVar(
+		&conf.FuseMountOptions,
+		"fusemountoptions",
+		"",
+		"Comma separated string of mount options accepted by ceph-fuse mounter")
 
 	// liveness/grpc metrics related flags
 	flag.IntVar(&conf.MetricsPort, "metricsport", 8080, "TCP port for liveness/grpc metrics requests")

docs/deploy-cephfs.md

@@ -59,6 +59,8 @@ that should be resolved in v14.2.3.
 | `--timeout`               | `3s`                        | Probe timeout in seconds                                                                                                                                                                                                                                                             |
 | `--histogramoption`       | `0.5,2,6`                   | [Deprecated] Histogram option for grpc metrics, should be comma separated value (ex:= "0.5,2,6" where start=0.5 factor=2, count=6)                                                                                                                                                   |
 | `--forcecephkernelclient` | `false`                     | Force enabling Ceph Kernel clients for mounting on kernels < 4.17                                                                                                                                                                                                                    |
+| `--kernelmountoptions`    | _empty_                     | Comma separated string of mount options accepted by cephfs kernel mounter                                                                                                                                                                                                               |
+| `--fusemountoptions`      | _empty_                     | Comma separated string of mount options accepted by ceph-fuse mounter                                                                                                                                                                                                               |
 | `--domainlabels`          | _empty_                     | Kubernetes node labels to use as CSI domain labels for topology aware provisioning, should be a comma separated value (ex:= "failure-domain/region,failure-domain/zone")                                                                                                             |
 
 **NOTE:** The parameter `-forcecephkernelclient` enables the Kernel

internal/cephfs/driver.go

@@ -64,10 +64,18 @@ func NewControllerServer(d *csicommon.CSIDriver) *ControllerServer {
 }
 
 // NewNodeServer initialize a node server for ceph CSI driver.
-func NewNodeServer(d *csicommon.CSIDriver, t string, topology map[string]string) *NodeServer {
+func NewNodeServer(
+	d *csicommon.CSIDriver,
+	t string,
+	topology map[string]string,
+	kernelMountOptions string,
+	fuseMountOptions string,
+) *NodeServer {
 	return &NodeServer{
 		DefaultNodeServer:  csicommon.NewDefaultNodeServer(d, t, topology),
 		VolumeLocks:        util.NewVolumeLocks(),
+		kernelMountOptions: kernelMountOptions,
+		fuseMountOptions:   fuseMountOptions,
 	}
 }
 
@@ -122,7 +130,7 @@ func (fs *Driver) Run(conf *util.Config) {
 		if err != nil {
 			log.FatalLogMsg(err.Error())
 		}
-		fs.ns = NewNodeServer(fs.cd, conf.Vtype, topology)
+		fs.ns = NewNodeServer(fs.cd, conf.Vtype, topology, conf.KernelMountOptions, conf.FuseMountOptions)
 	}
 
 	if conf.IsControllerServer {
@@ -133,7 +141,7 @@ func (fs *Driver) Run(conf *util.Config) {
 		if err != nil {
 			log.FatalLogMsg(err.Error())
 		}
-		fs.ns = NewNodeServer(fs.cd, conf.Vtype, topology)
+		fs.ns = NewNodeServer(fs.cd, conf.Vtype, topology, conf.KernelMountOptions, conf.FuseMountOptions)
 		fs.cs = NewControllerServer(fs.cd)
 	}
 

internal/cephfs/nodeserver.go

@@ -44,6 +44,8 @@ type NodeServer struct {
 	// A map storing all volumes with ongoing operations so that additional operations
 	// for that same volume (as defined by VolumeID) return an Aborted error
 	VolumeLocks        *util.VolumeLocks
+	kernelMountOptions string
+	fuseMountOptions   string
 }
 
 func getCredentialsForVolume(
@@ -225,7 +227,7 @@ func (ns *NodeServer) NodeStageVolume(
 	return &csi.NodeStageVolumeResponse{}, nil
 }
 
-func (*NodeServer) mount(
+func (ns *NodeServer) mount(
 	ctx context.Context,
 	mnt mounter.VolumeMounter,
 	volOptions *store.VolumeOptions,
@@ -244,6 +246,13 @@ func (*NodeServer) mount(
 
 	log.DebugLog(ctx, "cephfs: mounting volume %s with %s", volID, mnt.Name())
 
+	switch mnt.(type) {
+	case *mounter.FuseMounter:
+		volOptions.FuseMountOptions = util.MountOptionsAdd(volOptions.FuseMountOptions, ns.fuseMountOptions)
+	case *mounter.KernelMounter:
+		volOptions.KernelMountOptions = util.MountOptionsAdd(volOptions.KernelMountOptions, ns.kernelMountOptions)
+	}
+
 	const readOnly = "ro"
 
 	if volCap.AccessMode.Mode == csi.VolumeCapability_AccessMode_MULTI_NODE_READER_ONLY ||

internal/util/util.go

@@ -99,6 +99,11 @@ type Config struct {
 	HistogramOption string // Histogram option for grpc metrics, should be comma separated value,
 	// ex:= "0.5,2,6" where start=0.5 factor=2, count=6
 	MetricsIP string // TCP port for liveness/ metrics requests
+
+	// mount option related flags
+	KernelMountOptions string // Comma separated string of mount options accepted by cephfs kernel mounter
+	FuseMountOptions   string // Comma separated string of mount options accepted by ceph-fuse mounter
+
 	PidLimit          int           // PID limit to configure through cgroups")
 	MetricsPort       int           // TCP port for liveness/grpc metrics requests
 	PollTime          time.Duration // time interval in seconds between each poll