mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-21 04:20:23 +00:00
94 lines
2.5 KiB
Go
94 lines
2.5 KiB
Go
/*
|
|
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 (
|
|
"os"
|
|
"path"
|
|
"strings"
|
|
|
|
"github.com/pkg/errors"
|
|
"k8s.io/apimachinery/pkg/util/validation"
|
|
"k8s.io/klog"
|
|
)
|
|
|
|
// remove this once kubernetes v1.14.0 release is done
|
|
// https://github.com/kubernetes/cloud-provider/blob/master/volume/helpers/rounding.go
|
|
const (
|
|
// MiB - MebiByte size
|
|
MiB = 1024 * 1024
|
|
)
|
|
|
|
// RoundUpToMiB rounds up given quantity upto chunks of MiB
|
|
func RoundUpToMiB(size int64) int64 {
|
|
requestBytes := size
|
|
return roundUpSize(requestBytes, MiB)
|
|
}
|
|
|
|
func roundUpSize(volumeSizeBytes int64, 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, driverName string) (CachePersister, error) {
|
|
var err error
|
|
if err = createPersistentStorage(path.Join(sPath, "controller")); err != nil {
|
|
klog.Errorf("failed to create persistent storage for controller: %v", err)
|
|
return nil, err
|
|
}
|
|
|
|
if err = createPersistentStorage(path.Join(sPath, "node")); err != nil {
|
|
klog.Errorf("failed to create persistent storage for node: %v", err)
|
|
return nil, err
|
|
}
|
|
|
|
cp, err := NewCachePersister(metaDataStore, driverName)
|
|
if err != nil {
|
|
klog.Errorf("failed to define cache persistence method: %v", err)
|
|
return nil, err
|
|
}
|
|
return cp, err
|
|
}
|
|
|
|
func createPersistentStorage(persistentStoragePath string) error {
|
|
return os.MkdirAll(persistentStoragePath, os.FileMode(0755))
|
|
}
|
|
|
|
// 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
|
|
}
|