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Fix volsize for cephfs and rbd

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Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
Madhu Rajanna 2019-09-25 14:05:33 +05:30 committed by mergify[bot]
parent 9287948991
commit 7274bd09e5
5 changed files with 195 additions and 21 deletions
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13
pkg/cephfs/controllerserver.go
View File

@ -84,17 +84,24 @@ func (cs *ControllerServer) CreateVolume(ctx context.Context, req *csi.CreateVol
}
defer cs.VolumeLocks.Release(requestName)
volOptions, err := newVolumeOptions(ctx, requestName, req.GetCapacityRange().GetRequiredBytes(),
req.GetParameters(), secret)
volOptions, err := newVolumeOptions(ctx, requestName, req.GetParameters(), secret)
if err != nil {
klog.Errorf(util.Log(ctx, "validation and extraction of volume options failed: %v"), err)
return nil, status.Error(codes.InvalidArgument, err.Error())
}
if req.GetCapacityRange() != nil {
volOptions.Size = util.RoundOffBytes(req.GetCapacityRange().GetRequiredBytes())
}
// TODO need to add check for 0 volume size
vID, err := checkVolExists(ctx, volOptions, secret)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
// TODO return error message if requested vol size greater than found volume return error
if vID != nil {
return &csi.CreateVolumeResponse{
Volume: &csi.Volume{
@ -132,7 +139,7 @@ func (cs *ControllerServer) CreateVolume(ctx context.Context, req *csi.CreateVol
return &csi.CreateVolumeResponse{
Volume: &csi.Volume{
VolumeId: vID.VolumeID,
CapacityBytes: req.GetCapacityRange().GetRequiredBytes(),
CapacityBytes: volOptions.Size,
VolumeContext: req.GetParameters(),
},
}, nil

3
pkg/cephfs/volumeoptions.go
View File

@ -126,7 +126,7 @@ func getMonsAndClusterID(options map[string]string) (string, string, error) {
// newVolumeOptions generates a new instance of volumeOptions from the provided
// CSI request parameters
func newVolumeOptions(ctx context.Context, requestName string, size int64, volOptions, secret map[string]string) (*volumeOptions, error) {
func newVolumeOptions(ctx context.Context, requestName string, volOptions, secret map[string]string) (*volumeOptions, error) {
var (
opts volumeOptions
err error
@ -158,7 +158,6 @@ func newVolumeOptions(ctx context.Context, requestName string, size int64, volOp
}
opts.RequestName = requestName
opts.Size = size
cr, err := util.NewAdminCredentials(secret)
if err != nil {

10
pkg/rbd/controllerserver.go
View File

@ -108,8 +108,8 @@ func (cs *ControllerServer) parseVolCreateRequest(ctx context.Context, req *csi.
volSizeBytes = req.GetCapacityRange().GetRequiredBytes()
}
// always round up the request size in bytes to the nearest MiB
rbdVol.VolSize = util.MiB * util.RoundUpToMiB(volSizeBytes)
// always round up the request size in bytes to the nearest MiB/GiB
rbdVol.VolSize = util.RoundOffBytes(volSizeBytes)
// NOTE: rbdVol does not contain VolID and RbdImageName populated, everything
// else is populated post create request parsing
@ -172,7 +172,7 @@ func (cs *ControllerServer) CreateVolume(ctx context.Context, req *csi.CreateVol
}
}()
err = cs.createBackingImage(ctx, rbdVol, req, util.RoundUpToMiB(rbdVol.VolSize))
err = cs.createBackingImage(ctx, rbdVol, req, util.RoundOffVolSize(rbdVol.VolSize))
if err != nil {
return nil, err
}
@ -186,7 +186,7 @@ func (cs *ControllerServer) CreateVolume(ctx context.Context, req *csi.CreateVol
}, nil
}
func (cs *ControllerServer) createBackingImage(ctx context.Context, rbdVol *rbdVolume, req *csi.CreateVolumeRequest, volSizeMiB int64) error {
func (cs *ControllerServer) createBackingImage(ctx context.Context, rbdVol *rbdVolume, req *csi.CreateVolumeRequest, volSize int64) error {
var err error
// if VolumeContentSource is not nil, this request is for snapshot
@ -201,7 +201,7 @@ func (cs *ControllerServer) createBackingImage(ctx context.Context, rbdVol *rbdV
}
defer cr.DeleteCredentials()
err = createImage(ctx, rbdVol, volSizeMiB, cr)
err = createImage(ctx, rbdVol, volSize, cr)
if err != nil {
klog.Warningf(util.Log(ctx, "failed to create volume: %v"), err)
return status.Error(codes.Internal, err.Error())

44
pkg/util/util.go
View File

@ -18,6 +18,7 @@ package util
import (
"context"
"math"
"os"
"path"
"strings"
@ -36,13 +37,44 @@ import (
const (
// MiB - MebiByte size
MiB = 1024 * 1024
GiB = MiB * 1024
)
// RoundUpToMiB rounds up given quantity upto chunks of MiB
func RoundUpToMiB(size int64) int64 {
// RoundOffVolSize rounds up given quantity upto chunks of MiB/GiB
func RoundOffVolSize(size int64) int64 {
requestBytes := size
if requestBytes < GiB {
return roundUpSize(requestBytes, MiB)
}
size = roundUpSize(requestBytes, GiB)
// convert size back to MiB for rbd CLI
return size * GiB / MiB
}
func roundUpSize(volumeSizeBytes, allocationUnitBytes int64) int64 {
roundedUp := volumeSizeBytes / allocationUnitBytes
if volumeSizeBytes%allocationUnitBytes > 0 {
roundedUp++
}
return roundedUp
}
// RoundOffBytes converts roundoff the size
// 1.1Mib will be round off to 2Mib same for GiB
// size less than will be round off to 1MiB
func RoundOffBytes(bytes int64) int64 {
var num int64
floatBytes := float64(bytes)
// round off the value if its in decimal
if floatBytes < GiB {
num = int64(math.Ceil(floatBytes / MiB))
num *= MiB
} else {
num = int64(math.Ceil(floatBytes / GiB))
num *= GiB
}
return num
}
// variables which will be set during the build time
var (
@ -82,14 +114,6 @@ type Config struct {
}
func roundUpSize(volumeSizeBytes, allocationUnitBytes int64) int64 {
roundedUp := volumeSizeBytes / allocationUnitBytes
if volumeSizeBytes%allocationUnitBytes > 0 {
roundedUp++
}
return roundedUp
}
// CreatePersistanceStorage creates storage path and initializes new cache
func CreatePersistanceStorage(sPath, metaDataStore, pluginPath string) (CachePersister, error) {
var err error

144
pkg/util/util_test.go Normal file
View File

@ -0,0 +1,144 @@
/*
Copyright 2019 The Ceph-CSI 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 (
"testing"
)
func TestRoundOffBytes(t *testing.T) {
type args struct {
bytes int64
}
tests := []struct {
name string
args args
want int64
}{
{
"1MiB conversions",
args{
bytes: 1048576,
},
1048576,
},
{
"1000kiB conversion",
args{
bytes: 1000,
},
1048576, // equal to 1MiB
},
{
"1.5Mib conversion",
args{
bytes: 1572864,
},
2097152, // equal to 2MiB
},
{
"1.1MiB conversion",
args{
bytes: 1153434,
},
2097152, // equal to 2MiB
},
{
"1.5GiB conversion",
args{
bytes: 1610612736,
},
2147483648, // equal to 2GiB
},
{
"1.1GiB conversion",
args{
bytes: 1181116007,
},
2147483648, // equal to 2GiB
},
}
for _, tt := range tests {
ts := tt
t.Run(ts.name, func(t *testing.T) {
if got := RoundOffBytes(ts.args.bytes); got != ts.want {
t.Errorf("RoundOffBytes() = %v, want %v", got, ts.want)
}
})
}
}
func TestRoundOffVolSize(t *testing.T) {
type args struct {
size int64
}
tests := []struct {
name string
args args
want int64
}{
{
"1MiB conversions",
args{
size: 1048576,
},
1, // MiB
},
{
"1000kiB conversion",
args{
size: 1000,
},
1, // MiB
},
{
"1.5Mib conversion",
args{
size: 1572864,
},
2, // MiB
},
{
"1.1MiB conversion",
args{
size: 1153434,
},
2, // MiB
},
{
"1.5GiB conversion",
args{
size: 1610612736,
},
2048, // MiB
},
{
"1.1GiB conversion",
args{
size: 1181116007,
},
2048, // MiB
},
}
for _, tt := range tests {
ts := tt
t.Run(ts.name, func(t *testing.T) {
if got := RoundOffVolSize(ts.args.size); got != ts.want {
t.Errorf("RoundOffVolSize() = %v, want %v", got, ts.want)
}
})
}
}