BatchDeleteObjectsConcurrently delete objects by multiple goroutine concurrently.

BatchDeleteObjectsOfS3 delete objects by batch delete api.

CheckAllKeysExistInSecret check if all keys are included in the specific secret return the not-exist keys join by ",".

GenerateStorageCertEnv generate the env info in order to access backend backup storage.

GenerateTidbPasswordEnv generate the password EnvVar.

genStorageArgs returns the arg for --flag option and the remote/local path for br, default flag is storage.

GetBackupBucketName return the bucket name for remote storage.

GetBackupDataPath return the full path of backup data.

GetBackupPrefixName return the prefix for remote storage.

GetOptions gets the rclone options.

GetStorageRestorePath generate the path of a specific storage from Restore.

GetStorageType return the backup storage type according to the specified StorageProvider.

getVolSnapBackupMetaData get backup metadata from cloud storage.

NewStorageBackend creates new storage backend, now supports S3/GCS/Azblob/Local function called by both controller and backup/restore, since BR already has env config in BR pod, cred can be nil.

NewWorkerPool returns a WorkPool.

ParseImage returns the image name and the tag from the input image string.

ValidateBackup validates backup sepc.

ValidateRestore checks whether a restore spec is valid.

ClusterInfo represents the tidb cluster level meta infos.

EBSVolume is passed by TiDB deployment tools: TiDB Operator and TiUP(in future) we should do snapshot inside BR, because we need some logic to determine the order of snapshot starts.

MockDriver implement driver.Bucket.

PageIterator iterates a page of objects via 'ListIterator'.

StorageBackend provide a generic storage backend.

Worker identified by ID.

WorkerPool contains a pool of workers.

TODO: shall this structure be refactor or reserved for future use?.