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rbd: support QoS based on capacity for rbd volume #5016

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rbd: support QoS based on capacity for rbd volume #5016

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9 changes: 9 additions & 0 deletions docs/rbd/deploy.md
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Original file line number Diff line number Diff line change
Expand Up @@ -73,6 +73,15 @@ make image-cephcsi
| `stripeUnit` | no | stripe unit in bytes |
| `stripeCount` | no | objects to stripe over before looping |
| `objectSize` | no | object size in bytes |
| `BaseReadIops` | no | the base limit of read operations per second |
| `BaseWriteIops` | no | the base limit of write operations per second |
| `BaseReadBytesPerSecond` | no | the base limit of read bytes per second |
| `BaseWriteBytesPerSecond` | no | the base limit of write bytes per second |
| `ReadIopsPerGB` | no | the limit of read operations per GiB |
| `WriteIopsPerGB` | no | the limit of write operations per GiB |
| `ReadBpsPerGB` | no | the limit of read bytes per GiB |
| `WriteBpsPerGB` | no | the limit of write bytes per GiB |
| `BaseVolSizeBytes` | no | the min size of volume what use to calc qos beased on capacity |
| `extraDeploy` | no | array of extra objects to deploy with the release |

**NOTE:** An accompanying CSI configuration file, needs to be provided to the
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125 changes: 125 additions & 0 deletions e2e/rbd.go
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,7 @@ import (

. "github.com/onsi/ginkgo/v2"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/wait"
Expand Down Expand Up @@ -4643,6 +4644,130 @@ var _ = Describe("RBD", func() {
validateOmapCount(f, 0, rbdType, defaultRBDPool, volumesType)
})

By("validate rbd image qos", func() {
qosParameters := map[string]string{
"BaseReadIops": "2000",
"BaseWriteIops": "1000",
"BaseReadBytesPerSecond": "209715200",
"BaseWriteBytesPerSecond": "104857600",
}
err := deleteResource(rbdExamplePath + "storageclass.yaml")
if err != nil {
framework.Failf("failed to delete storageclass: %v", err)
}

err = createRBDStorageClass(
f.ClientSet,
f,
defaultSCName,
nil,
qosParameters,
deletePolicy)
if err != nil {
framework.Failf("failed to create storageclass: %v", err)
}
defer func() {
err = deleteResource(rbdExamplePath + "storageclass.yaml")
if err != nil {
framework.Failf("failed to delete storageclass: %v", err)
}
err = createRBDStorageClass(f.ClientSet, f, defaultSCName, nil, nil, deletePolicy)
if err != nil {
framework.Failf("failed to create storageclass: %v", err)
}
}()

// create PVC
pvc, err := loadPVC(pvcPath)
if err != nil {
framework.Failf("failed to load PVC: %v", err)
}

pvc.Namespace = f.UniqueName
wants := map[string]string{
"rbd_qos_read_iops_limit": "2000",
"rbd_qos_write_iops_limit": "1000",
"rbd_qos_read_bps_limit": "209715200",
"rbd_qos_write_bps_limit": "104857600",
}

err = createPVCAndvalidatePV(f.ClientSet, pvc, deployTimeout)
if err != nil {
framework.Failf("failed to create PVC and application: %v", err)
}

// validate rbd image qos
err = validateQOS(f, pvc, wants)
if err != nil {
framework.Failf("failed to validate qos: %v", err)
}

// delete pvc
err = deletePVCAndValidatePV(f.ClientSet, pvc, deployTimeout)
if err != nil {
framework.Failf("failed to delete PVC: %v", err)
}

qosParameters = map[string]string{
"BaseReadIops": "2000",
"BaseWriteIops": "1000",
"BaseReadBytesPerSecond": "209715200",
"BaseWriteBytesPerSecond": "104857600",
"ReadIopsPerGB": "20",
"WriteIopsPerGB": "10",
"ReadBpsPerGB": "2097152",
"WriteBpsPerGB": "1048576",
"BaseVolSizeBytes": "21474836480",
}
err = deleteResource(rbdExamplePath + "storageclass.yaml")
if err != nil {
framework.Failf("failed to delete storageclass: %v", err)
}

err = createRBDStorageClass(
f.ClientSet,
f,
defaultSCName,
nil,
qosParameters,
deletePolicy)
if err != nil {
framework.Failf("failed to create storageclass: %v", err)
}

// create PVC
pvc, err = loadPVC(pvcPath)
if err != nil {
framework.Failf("failed to load PVC: %v", err)
}

pvc.Namespace = f.UniqueName
pvc.Spec.Resources.Requests[v1.ResourceStorage] = resource.MustParse("100Gi")
wants = map[string]string{
"rbd_qos_read_iops_limit": "3600",
"rbd_qos_write_iops_limit": "1800",
"rbd_qos_read_bps_limit": "377487360",
"rbd_qos_write_bps_limit": "188743680",
}

err = createPVCAndvalidatePV(f.ClientSet, pvc, deployTimeout)
if err != nil {
framework.Failf("failed to create PVC and application: %v", err)
}

// validate rbd image qos
err = validateQOS(f, pvc, wants)
if err != nil {
framework.Failf("failed to validate qos: %v", err)
}

// delete pvc
err = deletePVCAndValidatePV(f.ClientSet, pvc, deployTimeout)
if err != nil {
framework.Failf("failed to delete PVC: %v", err)
}
})

By("create a PVC and check PVC/PV metadata on RBD image after setmetadata is set to false", func() {
err := createRBDSnapshotClass(f)
if err != nil {
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25 changes: 25 additions & 0 deletions e2e/rbd_helper.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1166,3 +1166,28 @@ func validateStripe(f *framework.Framework,

return nil
}

func validateQOS(f *framework.Framework,
pvc *v1.PersistentVolumeClaim,
wants map[string]string,
) error {
metadataConfPrefix := "conf_"

imageData, err := getImageInfoFromPVC(pvc.Namespace, pvc.Name, f)
if err != nil {
return err
}

rbdImageSpec := imageSpec(defaultRBDPool, imageData.imageName)
for k, v := range wants {
qosVal, err := getImageMeta(rbdImageSpec, metadataConfPrefix+k, f)
if err != nil {
return err
}
if qosVal != v {
return fmt.Errorf("%s: %s does not match expected %s", k, qosVal, v)
}
}

return nil
}
32 changes: 32 additions & 0 deletions examples/rbd/storageclass.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -162,6 +162,38 @@ parameters:
# stripeCount: <>
# (optional) The object size in bytes.
# objectSize: <>

# rbd volume QoS.
# QoS provides settings for rbd volume read/write iops
# and read/write bandwidth. There are 4 base qos parameters
# among them, when users apply for a volume capacity equal
# to or less than BaseVolSizebytes, use base qos limit.
# For the portion of capacity exceeding BaseVolSizebytes,
# QoS will be increased in steps set per GiB. If the step
# size parameter per GiB is not provided, only base QoS limit
# will be used and not associated with capacity size.
#
# note: currently supports rbd-nbd mounter.
#
# For more details
# (optional) the base limit of read operations per second.
# BaseReadIops: <>
# (optional) the base limit of write operations per second.
# BaseWriteIops: <>
# (optional) the base limit of read bytes per second.
# BaseReadBytesPerSecond: <>
# (optional) the base limit of write bytes per second.
# BaseWriteBytesPerSecond: <>
# (optional) the limit of read operations per GiB.
# ReadIopsPerGB: <>
# (optional) the limit of write operations per GiB.
# WriteIopsPerGB: <>
# (optional) the limit of read bytes per GiB.
# ReadBpsPerGB: <>
# (optional) the limit of write bytes per GiB.
# WriteBpsPerGB: <>
# (optional) min size of volume what use to calc qos beased on capacity.
# BaseVolSizeBytes:<>
reclaimPolicy: Delete
allowVolumeExpansion: true

Expand Down
31 changes: 30 additions & 1 deletion internal/rbd/controllerserver.go
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Original file line number Diff line number Diff line change
Expand Up @@ -231,6 +231,12 @@ func (cs *ControllerServer) parseVolCreateRequest(
return nil, status.Error(codes.InvalidArgument, err.Error())
}

// Get QosParameters from SC if qos configuration existing in SC
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err = rbdVol.SetQOS(ctx, req.GetParameters())
if err != nil {
return nil, status.Error(codes.InvalidArgument, err.Error())
}

err = rbdVol.Connect(cr)
if err != nil {
log.ErrorLog(ctx, "failed to connect to volume %v: %v", rbdVol.RbdImageName, err)
Expand Down Expand Up @@ -415,7 +421,7 @@ func (cs *ControllerServer) CreateVolume(
}
}()

err = cs.createBackingImage(ctx, cr, req.GetSecrets(), rbdVol, parentVol, rbdSnap)
err = cs.createBackingImage(ctx, cr, req.GetSecrets(), rbdVol, parentVol, rbdSnap, req.GetParameters())
if err != nil {
if errors.Is(err, ErrFlattenInProgress) {
return nil, status.Error(codes.Aborted, err.Error())
Expand Down Expand Up @@ -712,6 +718,7 @@ func (cs *ControllerServer) createBackingImage(
secrets map[string]string,
rbdVol, parentVol *rbdVolume,
rbdSnap *rbdSnapshot,
scParams map[string]string,
) error {
var err error

Expand Down Expand Up @@ -766,6 +773,21 @@ func (cs *ControllerServer) createBackingImage(
return status.Error(codes.Internal, err.Error())
}

// Apply Qos parameters to rbd image.
err = rbdVol.ApplyQOS(ctx)
if err != nil {
log.DebugLog(ctx, "failed apply QOS for rbd image: %v", err)

return status.Error(codes.Internal, err.Error())
}
// Save Qos parameters from SC in Image medatate, we will use it while resize volume.
err = rbdVol.SaveQOS(ctx, scParams)
if err != nil {
log.DebugLog(ctx, "failed save QOS for rbd image: %v", err)

return status.Error(codes.Internal, err.Error())
}

return nil
}

Expand Down Expand Up @@ -1605,6 +1627,13 @@ func (cs *ControllerServer) ControllerExpandVolume(
if err != nil {
log.ErrorLog(ctx, "failed to resize rbd image: %s with error: %v", rbdVol, err)

return nil, status.Error(codes.Internal, err.Error())
}
// adjust rbd qos after resize volume.
err = rbdVol.AdjustQOS(ctx)
if err != nil {
log.DebugLog(ctx, "failed adjust QOS for rbd image")

return nil, status.Error(codes.Internal, err.Error())
}
}
Expand Down
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