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cephfs: implement getMetadataPool() with go-ceph

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Fixes: #1554
Signed-off-by: Niels de Vos <ndevos@redhat.com>
This commit is contained in:
Niels de Vos 2020-10-02 13:18:24 +02:00 committed by mergify[bot]
parent cabdac4913
commit eb2584095b
2 changed files with 16 additions and 28 deletions
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38
internal/cephfs/cephfs_util.go
View File

@ -46,38 +46,26 @@ func (vo *volumeOptions) getFscID(ctx context.Context) (int64, error) {
return 0, ErrVolumeNotFound
}
// CephFilesystem is a representation of the json structure returned by 'ceph fs ls'.
type CephFilesystem struct {
Name string `json:"name"`
MetadataPool string `json:"metadata_pool"`
MetadataPoolID int `json:"metadata_pool_id"`
DataPools []string `json:"data_pools"`
DataPoolIDs []int `json:"data_pool_ids"`
}
func (vo *volumeOptions) getMetadataPool(ctx context.Context, cr *util.Credentials) (string, error) {
// ./tbox ceph fs ls --format=json
// [{"name":"myfs","metadata_pool":"myfs-metadata","metadata_pool_id":4,...},...]
var filesystems []CephFilesystem
err := execCommandJSON(ctx, &filesystems,
"ceph",
"-m", vo.Monitors,
"--id", cr.ID,
"--keyfile="+cr.KeyFile,
"-c", util.CephConfigPath,
"fs", "ls", "--format=json",
)
func (vo *volumeOptions) getMetadataPool(ctx context.Context) (string, error) {
fsa, err := vo.conn.GetFSAdmin()
if err != nil {
util.ErrorLog(ctx, "could not get FSAdmin, can not fetch metadata pool for %s:", vo.FsName, err)
return "", err
}
for _, fs := range filesystems {
if fs.Name == vo.FsName {
return fs.MetadataPool, nil
fsPoolInfos, err := fsa.ListFileSystems()
if err != nil {
util.ErrorLog(ctx, "could not list filesystems, can not fetch metadata pool for %s:", vo.FsName, err)
return "", err
}
for _, fspi := range fsPoolInfos {
if fspi.Name == vo.FsName {
return fspi.MetadataPool, nil
}
}
return "", fmt.Errorf("%w: fsName (%s) not found in Ceph cluster", util.ErrPoolNotFound, vo.FsName)
return "", fmt.Errorf("%w: could not find metadata pool for %s", util.ErrPoolNotFound, vo.FsName)
}
func (vo *volumeOptions) getFsName(ctx context.Context) (string, error) {

6
internal/cephfs/volumeoptions.go
View File

@ -220,7 +220,7 @@ func newVolumeOptions(ctx context.Context, requestName string, req *csi.CreateVo
return nil, err
}
opts.MetadataPool, err = opts.getMetadataPool(ctx, cr)
opts.MetadataPool, err = opts.getMetadataPool(ctx)
if err != nil {
return nil, err
}
@ -295,7 +295,7 @@ func newVolumeOptionsFromVolID(ctx context.Context, volID string, volOpt, secret
return nil, nil, err
}
volOptions.MetadataPool, err = volOptions.getMetadataPool(ctx, cr)
volOptions.MetadataPool, err = volOptions.getMetadataPool(ctx)
if err != nil {
return nil, nil, err
}
@ -503,7 +503,7 @@ func newSnapshotOptionsFromID(ctx context.Context, snapID string, cr *util.Crede
return &volOptions, nil, &sid, err
}
volOptions.MetadataPool, err = volOptions.getMetadataPool(ctx, cr)
volOptions.MetadataPool, err = volOptions.getMetadataPool(ctx)
if err != nil {
return &volOptions, nil, &sid, err
}