filer.remote.sync: add option to add randomized suffix to buckets to avoid conflicts

weed/command/filer_remote_sync.go

@@ -15,13 +15,14 @@ import (
 )
 
 type RemoteSyncOptions struct {
-	filerAddress       *string
-	grpcDialOption     grpc.DialOption
-	readChunkFromFiler *bool
-	debug              *bool
-	timeAgo            *time.Duration
-	dir                *string
-	createBucketAt     *string
+	filerAddress             *string
+	grpcDialOption           grpc.DialOption
+	readChunkFromFiler       *bool
+	debug                    *bool
+	timeAgo                  *time.Duration
+	dir                      *string
+	createBucketAt           *string
+	createBucketRandomSuffix *bool
 
 	mappings    *remote_pb.RemoteStorageMapping
 	remoteConfs map[string]*remote_pb.RemoteConf
@@ -52,6 +53,7 @@ func init() {
 	remoteSyncOptions.filerAddress = cmdFilerRemoteSynchronize.Flag.String("filer", "localhost:8888", "filer of the SeaweedFS cluster")
 	remoteSyncOptions.dir = cmdFilerRemoteSynchronize.Flag.String("dir", "/", "a mounted directory on filer")
 	remoteSyncOptions.createBucketAt = cmdFilerRemoteSynchronize.Flag.String("createBucketAt", "", "one remote storage name to create new buckets in")
+	remoteSyncOptions.createBucketRandomSuffix = cmdFilerRemoteSynchronize.Flag.Bool("createBucketWithRandomSuffix", false, "add randomized suffix to bucket name to avoid conflicts")
 	remoteSyncOptions.readChunkFromFiler = cmdFilerRemoteSynchronize.Flag.Bool("filerProxy", false, "read file chunks from filer instead of volume servers")
 	remoteSyncOptions.debug = cmdFilerRemoteSynchronize.Flag.Bool("debug", false, "debug mode to print out filer updated remote files")
 	remoteSyncOptions.timeAgo = cmdFilerRemoteSynchronize.Flag.Duration("timeAgo", 0, "start time before now. \"300ms\", \"1.5h\" or \"2h45m\". Valid time units are \"ns\", \"us\" (or \"µs\"), \"ms\", \"s\", \"m\", \"h\"")