mirror of
https://github.com/ceph/ceph-csi.git
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a362ef6bd4
address golangci-lint issues in cephfs related code. Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
127 lines
3.6 KiB
Go
127 lines
3.6 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 core
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import (
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"context"
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"fmt"
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cerrors "github.com/ceph/ceph-csi/internal/cephfs/errors"
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"github.com/ceph/ceph-csi/internal/util"
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"github.com/ceph/ceph-csi/internal/util/log"
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)
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// FileSystem is the interface that holds the signature of filesystem methods
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// that interacts with CephFS filesystem API's.
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type FileSystem interface {
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// GetFscID returns the ID of the filesystem with the given name.
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GetFscID(ctx context.Context, fsName string) (int64, error)
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// GetMetadataPool returns the metadata pool name of the filesystem with the given name.
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GetMetadataPool(ctx context.Context, fsName string) (string, error)
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// GetFsName returns the name of the filesystem with the given ID.
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GetFsName(ctx context.Context, fsID int64) (string, error)
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}
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// fileSystem is the implementation of FileSystem interface.
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type fileSystem struct {
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conn *util.ClusterConnection
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}
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// NewFileSystem returns a new instance of fileSystem.
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func NewFileSystem(conn *util.ClusterConnection) FileSystem {
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return &fileSystem{
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conn: conn,
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}
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}
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// GetFscID returns the ID of the filesystem with the given name.
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func (f *fileSystem) GetFscID(ctx context.Context, fsName string) (int64, error) {
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fsa, err := f.conn.GetFSAdmin()
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if err != nil {
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log.ErrorLog(ctx, "could not get FSAdmin, can not fetch filesystem ID for %s: %s", fsName, err)
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return 0, err
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}
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volumes, err := fsa.EnumerateVolumes()
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if err != nil {
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log.ErrorLog(ctx, "could not list volumes, can not fetch filesystem ID for %s: %s", fsName, err)
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return 0, err
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}
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for _, vol := range volumes {
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if vol.Name == fsName {
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return vol.ID, nil
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}
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}
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log.ErrorLog(ctx, "failed to list volume %s", fsName)
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return 0, cerrors.ErrVolumeNotFound
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}
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// GetMetadataPool returns the metadata pool name of the filesystem with the given name.
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func (f *fileSystem) GetMetadataPool(ctx context.Context, fsName string) (string, error) {
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fsa, err := f.conn.GetFSAdmin()
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if err != nil {
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log.ErrorLog(ctx, "could not get FSAdmin, can not fetch metadata pool for %s: %s", fsName, err)
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return "", err
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}
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fsPoolInfos, err := fsa.ListFileSystems()
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if err != nil {
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log.ErrorLog(ctx, "could not list filesystems, can not fetch metadata pool for %s: %s", fsName, err)
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return "", err
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}
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for _, fspi := range fsPoolInfos {
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if fspi.Name == fsName {
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return fspi.MetadataPool, nil
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}
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}
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return "", fmt.Errorf("%w: could not find metadata pool for %s", util.ErrPoolNotFound, fsName)
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}
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// GetFsName returns the name of the filesystem with the given ID.
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func (f *fileSystem) GetFsName(ctx context.Context, fscID int64) (string, error) {
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fsa, err := f.conn.GetFSAdmin()
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if err != nil {
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log.ErrorLog(ctx, "could not get FSAdmin, can not fetch filesystem name for ID %d: %s", fscID, err)
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return "", err
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}
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volumes, err := fsa.EnumerateVolumes()
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if err != nil {
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log.ErrorLog(ctx, "could not list volumes, can not fetch filesystem name for ID %d: %s", fscID, err)
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return "", err
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}
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for _, vol := range volumes {
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if vol.ID == fscID {
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return vol.Name, nil
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}
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}
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return "", fmt.Errorf("%w: fscID (%d) not found in Ceph cluster", util.ErrPoolNotFound, fscID)
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}
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