mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-09-19 23:19:52 +00:00
c5762b6b5c
RBD plugin needs only a single ID to manage images and operations against a pool, mentioned in the storage class. The current scheme of 2 IDs is hence not needed and removed in this commit. Further, unlike CephFS plugin, the RBD plugin splits the user id and the key into the storage class and the secret respectively. Also the parameter name for the key in the secret is noted in the storageclass making it a variant and hampers usability/comprehension. This is also fixed by moving the id and the key to the secret and not retaining the same in the storage class, like CephFS. Fixes #270 Testing done: - Basic PVC creation and mounting Signed-off-by: ShyamsundarR <srangana@redhat.com>
115 lines
3.1 KiB
Go
115 lines
3.1 KiB
Go
/*
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Copyright 2019 The Ceph-CSI Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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"os"
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"path"
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"strings"
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"github.com/pkg/errors"
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"k8s.io/apimachinery/pkg/util/validation"
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"k8s.io/klog"
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)
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// remove this once kubernetes v1.14.0 release is done
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// https://github.com/kubernetes/cloud-provider/blob/master/volume/helpers/rounding.go
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const (
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// MiB - MebiByte size
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MiB = 1024 * 1024
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)
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// RoundUpToMiB rounds up given quantity upto chunks of MiB
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func RoundUpToMiB(size int64) int64 {
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requestBytes := size
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return roundUpSize(requestBytes, MiB)
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}
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func roundUpSize(volumeSizeBytes, allocationUnitBytes int64) int64 {
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roundedUp := volumeSizeBytes / allocationUnitBytes
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if volumeSizeBytes%allocationUnitBytes > 0 {
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roundedUp++
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}
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return roundedUp
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}
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// CreatePersistanceStorage creates storage path and initializes new cache
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func CreatePersistanceStorage(sPath, metaDataStore, driverName string) (CachePersister, error) {
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var err error
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if err = createPersistentStorage(path.Join(sPath, "controller")); err != nil {
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klog.Errorf("failed to create persistent storage for controller: %v", err)
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return nil, err
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}
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if err = createPersistentStorage(path.Join(sPath, "node")); err != nil {
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klog.Errorf("failed to create persistent storage for node: %v", err)
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return nil, err
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}
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cp, err := NewCachePersister(metaDataStore, driverName)
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if err != nil {
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klog.Errorf("failed to define cache persistence method: %v", err)
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return nil, err
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}
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return cp, err
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}
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func createPersistentStorage(persistentStoragePath string) error {
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return os.MkdirAll(persistentStoragePath, os.FileMode(0755))
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}
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// ValidateDriverName validates the driver name
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func ValidateDriverName(driverName string) error {
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if driverName == "" {
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return errors.New("driver name is empty")
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}
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if len(driverName) > 63 {
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return errors.New("driver name length should be less than 63 chars")
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}
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var err error
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for _, msg := range validation.IsDNS1123Subdomain(strings.ToLower(driverName)) {
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if err == nil {
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err = errors.New(msg)
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continue
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}
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err = errors.Wrap(err, msg)
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}
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return err
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}
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// GenerateVolID generates a volume ID based on passed in parameters and version, to be returned
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// to the CO system
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func GenerateVolID(monitors string, cr *Credentials, pool, clusterID, objUUID string, volIDVersion uint16) (string, error) {
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poolID, err := GetPoolID(monitors, cr, pool)
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if err != nil {
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return "", err
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}
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// generate the volume ID to return to the CO system
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vi := CSIIdentifier{
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LocationID: poolID,
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EncodingVersion: volIDVersion,
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ClusterID: clusterID,
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ObjectUUID: objUUID,
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}
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volID, err := vi.ComposeCSIID()
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return volID, err
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}
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