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rbd: add support for rbd map and unmap options
added support for providing map and unmap options to rbd CLI when mapping rbd image on the node. Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
Madhu Rajanna
mergify[bot]
parent
8e434bb3ee
commit
d1f175d9f3
@ -55,7 +55,9 @@ make image-cephcsi
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| `dataPool` | no | Ceph pool used for the data of the RBD images. |
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| `volumeNamePrefix` | no | Prefix to use for naming RBD images (defaults to `csi-vol-`). |
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| `snapshotNamePrefix` | no | Prefix to use for naming RBD snapshot images (defaults to `csi-snap-`). |
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| `imageFeatures` | no | RBD image features. CSI RBD currently supports only `layering` feature. See [man pages](http://docs.ceph.com/docs/nautilus/man/8/rbd/#cmdoption-rbd-image-feature) |
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| `imageFeatures` | no | RBD image features. CSI RBD currently supports only `layering` feature. See [man pages](http://docs.ceph.com/docs/nautilus/man/8/rbd/#cmdoption-rbd-image-feature) |
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| `mapOptions` | no | Map options to use when mapping rbd image. See [krbd](https://docs.ceph.com/docs/master/man/8/rbd/#kernel-rbd-krbd-options) and [nbd](https://docs.ceph.com/docs/master/man/8/rbd-nbd/#options) options. |
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| `unmapOptions` | no | Unmap options to use when unmapping rbd image. See [krbd](https://docs.ceph.com/docs/master/man/8/rbd/#kernel-rbd-krbd-options) and [nbd](https://docs.ceph.com/docs/master/man/8/rbd-nbd/#options) options. |
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| `csi.storage.k8s.io/provisioner-secret-name`, `csi.storage.k8s.io/node-stage-secret-name` | yes (for Kubernetes) | name of the Kubernetes Secret object containing Ceph client credentials. Both parameters should have the same value |
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| `csi.storage.k8s.io/provisioner-secret-namespace`, `csi.storage.k8s.io/node-stage-secret-namespace` | yes (for Kubernetes) | namespaces of the above Secret objects |
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| `mounter` | no | if set to `rbd-nbd`, use `rbd-nbd` on nodes that have `rbd-nbd` and `nbd` kernel modules to map rbd images |
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25
e2e/rbd.go
25
e2e/rbd.go
@ -1240,6 +1240,31 @@ var _ = Describe("RBD", func() {
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validateRBDImageCount(f, 0)
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})
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By("create a PVC and Bind it to an app for mapped rbd image with options", func() {
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err := deleteResource(rbdExamplePath + "storageclass.yaml")
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if err != nil {
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e2elog.Failf("failed to delete storageclass with error %v", err)
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}
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err = createRBDStorageClass(f.ClientSet, f, nil, map[string]string{
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"mapOptions": "lock_on_read,queue_depth=1024",
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"unmapOptions": "force"})
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if err != nil {
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e2elog.Failf("failed to create storageclass with error %v", err)
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}
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err = validatePVCAndAppBinding(pvcPath, appPath, f)
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if err != nil {
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e2elog.Failf("failed to validate pvc and application binding with error %v", err)
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}
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err = deleteResource(rbdExamplePath + "storageclass.yaml")
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if err != nil {
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e2elog.Failf("failed to delete storageclass with error %v", err)
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}
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err = createRBDStorageClass(f.ClientSet, f, nil, nil)
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if err != nil {
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e2elog.Failf("failed to create storageclass with error %v", err)
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}
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})
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// Make sure this should be last testcase in this file, because
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// it deletes pool
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By("Create a PVC and delete PVC when backend pool deleted", func() {
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@ -29,6 +29,20 @@ parameters:
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# CSI RBD currently supports only `layering` feature.
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imageFeatures: layering
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# mapOptions is a comma-separated list of map options.
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# For krbd options refer
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# https://docs.ceph.com/docs/master/man/8/rbd/#kernel-rbd-krbd-options
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# For nbd options refer
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# https://docs.ceph.com/docs/master/man/8/rbd-nbd/#options
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# mapOptions: lock_on_read,queue_depth=1024
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# unmapOptions is a comma-separated list of unmap options.
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# For krbd options refer
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# https://docs.ceph.com/docs/master/man/8/rbd/#kernel-rbd-krbd-options
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# For nbd options refer
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# https://docs.ceph.com/docs/master/man/8/rbd-nbd/#options
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# unmapOptions: force
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# The secrets have to contain Ceph credentials with required access
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# to the 'pool'.
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csi.storage.k8s.io/provisioner-secret-name: csi-rbd-secret
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@ -205,6 +205,9 @@ func (ns *NodeServer) NodeStageVolume(ctx context.Context, req *csi.NodeStageVol
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volOptions.VolID = volID
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transaction := stageTransaction{}
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volOptions.MapOptions = req.GetVolumeContext()["mapOptions"]
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volOptions.UnmapOptions = req.GetVolumeContext()["unmapOptions"]
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// Stash image details prior to mapping the image (useful during Unstage as it has no
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// voloptions passed to the RPC as per the CSI spec)
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err = stashRBDImageMetadata(volOptions, stagingParentPath)
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@ -213,7 +216,7 @@ func (ns *NodeServer) NodeStageVolume(ctx context.Context, req *csi.NodeStageVol
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}
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defer func() {
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if err != nil {
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ns.undoStagingTransaction(ctx, req, transaction)
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ns.undoStagingTransaction(ctx, req, transaction, volOptions)
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}
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}()
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@ -320,7 +323,7 @@ func (ns *NodeServer) stageTransaction(ctx context.Context, req *csi.NodeStageVo
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return transaction, err
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}
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func (ns *NodeServer) undoStagingTransaction(ctx context.Context, req *csi.NodeStageVolumeRequest, transaction stageTransaction) {
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func (ns *NodeServer) undoStagingTransaction(ctx context.Context, req *csi.NodeStageVolumeRequest, transaction stageTransaction, volOptions *rbdVolume) {
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var err error
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stagingTargetPath := getStagingTargetPath(req)
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@ -345,7 +348,7 @@ func (ns *NodeServer) undoStagingTransaction(ctx context.Context, req *csi.NodeS
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// Unmapping rbd device
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if transaction.devicePath != "" {
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err = detachRBDDevice(ctx, transaction.devicePath, volID, transaction.isEncrypted)
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err = detachRBDDevice(ctx, transaction.devicePath, volID, volOptions.UnmapOptions, transaction.isEncrypted)
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if err != nil {
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util.ErrorLog(ctx, "failed to unmap rbd device: %s for volume %s with error: %v", transaction.devicePath, volID, err)
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// continue on failure to delete the stash file, as kubernetes will fail to delete the staging path otherwise
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@ -679,7 +682,7 @@ func (ns *NodeServer) NodeUnstageVolume(ctx context.Context, req *csi.NodeUnstag
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// Unmapping rbd device
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imageSpec := imgInfo.String()
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if err = detachRBDImageOrDeviceSpec(ctx, imageSpec, true, imgInfo.NbdAccess, imgInfo.Encrypted, req.GetVolumeId()); err != nil {
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if err = detachRBDImageOrDeviceSpec(ctx, imageSpec, true, imgInfo.NbdAccess, imgInfo.Encrypted, req.GetVolumeId(), imgInfo.UnmapOptions); err != nil {
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util.ErrorLog(ctx, "error unmapping volume (%s) from staging path (%s): (%v)", req.GetVolumeId(), stagingTargetPath, err)
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return nil, status.Error(codes.Internal, err.Error())
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}
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@ -235,13 +235,17 @@ func createPath(ctx context.Context, volOpt *rbdVolume, cr *util.Credentials) (s
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if volOpt.readOnly {
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mapOptions = append(mapOptions, "--read-only")
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}
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if volOpt.MapOptions != "" {
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mapOptions = append(mapOptions, "--options", volOpt.MapOptions)
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}
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// Execute map
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stdout, stderr, err := util.ExecCommand(ctx, rbd, mapOptions...)
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if err != nil {
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util.WarningLog(ctx, "rbd: map error %v, rbd output: %s", err, stderr)
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// unmap rbd image if connection timeout
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if strings.Contains(err.Error(), rbdMapConnectionTimeout) {
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detErr := detachRBDImageOrDeviceSpec(ctx, imagePath, true, isNbd, volOpt.Encrypted, volOpt.VolID)
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detErr := detachRBDImageOrDeviceSpec(ctx, imagePath, true, isNbd, volOpt.Encrypted, volOpt.VolID, volOpt.UnmapOptions)
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if detErr != nil {
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util.WarningLog(ctx, "rbd: %s unmap error %v", imagePath, detErr)
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}
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@ -275,18 +279,18 @@ func waitForrbdImage(ctx context.Context, backoff wait.Backoff, volOptions *rbdV
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return err
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}
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func detachRBDDevice(ctx context.Context, devicePath, volumeID string, encrypted bool) error {
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func detachRBDDevice(ctx context.Context, devicePath, volumeID, unmapOptions string, encrypted bool) error {
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nbdType := false
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if strings.HasPrefix(devicePath, "/dev/nbd") {
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nbdType = true
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}
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return detachRBDImageOrDeviceSpec(ctx, devicePath, false, nbdType, encrypted, volumeID)
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return detachRBDImageOrDeviceSpec(ctx, devicePath, false, nbdType, encrypted, volumeID, unmapOptions)
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}
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// detachRBDImageOrDeviceSpec detaches an rbd imageSpec or devicePath, with additional checking
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// when imageSpec is used to decide if image is already unmapped.
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func detachRBDImageOrDeviceSpec(ctx context.Context, imageOrDeviceSpec string, isImageSpec, ndbType, encrypted bool, volumeID string) error {
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func detachRBDImageOrDeviceSpec(ctx context.Context, imageOrDeviceSpec string, isImageSpec, ndbType, encrypted bool, volumeID, unmapOptions string) error {
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if encrypted {
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mapperFile, mapperPath := util.VolumeMapper(volumeID)
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mappedDevice, mapper, err := util.DeviceEncryptionStatus(ctx, mapperPath)
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@ -312,7 +316,9 @@ func detachRBDImageOrDeviceSpec(ctx context.Context, imageOrDeviceSpec string, i
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accessType = accessTypeNbd
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}
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options := []string{"unmap", "--device-type", accessType, imageOrDeviceSpec}
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if unmapOptions != "" {
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options = append(options, "--options", unmapOptions)
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}
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_, stderr, err := util.ExecCommand(ctx, rbd, options...)
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if err != nil {
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// Messages for krbd and nbd differ, hence checking either of them for missing mapping
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@ -95,6 +95,8 @@ type rbdVolume struct {
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ClusterID string `json:"clusterId"`
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RequestName string
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ReservedID string
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MapOptions string
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UnmapOptions string
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VolName string `json:"volName"`
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MonValueFromSecret string `json:"monValueFromSecret"`
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VolSize int64 `json:"volSize"`
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@ -986,6 +988,7 @@ type rbdImageMetadataStash struct {
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Pool string `json:"pool"`
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RadosNamespace string `json:"radosNamespace"`
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ImageName string `json:"image"`
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UnmapOptions string `json:"unmapOptions"`
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NbdAccess bool `json:"accessType"`
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Encrypted bool `json:"encrypted"`
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}
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@ -1006,11 +1009,12 @@ func (ri *rbdImageMetadataStash) String() string {
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func stashRBDImageMetadata(volOptions *rbdVolume, path string) error {
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var imgMeta = rbdImageMetadataStash{
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// there are no checks for this at present
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Version: 2, // nolint:gomnd // number specifies version.
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Version: 3, // nolint:gomnd // number specifies version.
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Pool: volOptions.Pool,
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RadosNamespace: volOptions.RadosNamespace,
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ImageName: volOptions.RbdImageName,
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Encrypted: volOptions.Encrypted,
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UnmapOptions: volOptions.UnmapOptions,
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}
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imgMeta.NbdAccess = false
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