package shell import ( "bytes" "flag" "fmt" "io" "regexp" "strings" "github.com/seaweedfs/seaweedfs/weed/filer" "github.com/seaweedfs/seaweedfs/weed/pb/filer_pb" "github.com/seaweedfs/seaweedfs/weed/storage/super_block" ) func init() { Commands = append(Commands, &commandFsConfigure{}) } type commandFsConfigure struct { } func (c *commandFsConfigure) Name() string { return "fs.configure" } func (c *commandFsConfigure) Help() string { return `configure and apply storage options for each location # see the current configuration file content fs.configure # trying the changes and see the possible configuration file content fs.configure -locationPrefix=/my/folder -collection=abc fs.configure -locationPrefix=/my/folder -collection=abc -ttl=7d # example: configure adding only 1 physical volume for each bucket collection fs.configure -locationPrefix=/buckets/ -volumeGrowthCount=1 # apply the changes fs.configure -locationPrefix=/my/folder -collection=abc -apply # delete the changes fs.configure -locationPrefix=/my/folder -delete -apply ` } func (c *commandFsConfigure) HasTag(CommandTag) bool { return false } func (c *commandFsConfigure) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) { fsConfigureCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError) locationPrefix := fsConfigureCommand.String("locationPrefix", "", "path prefix, required to update the path-specific configuration") collection := fsConfigureCommand.String("collection", "", "assign writes to this collection") replication := fsConfigureCommand.String("replication", "", "assign writes with this replication") ttl := fsConfigureCommand.String("ttl", "", "assign writes with this ttl (e.g., 1m, 1h, 1d, 1w, 1y)") diskType := fsConfigureCommand.String("disk", "", "[hdd|ssd|] hard drive or solid state drive or any tag") fsync := fsConfigureCommand.Bool("fsync", false, "fsync for the writes") isReadOnly := fsConfigureCommand.Bool("readOnly", false, "disable writes") worm := fsConfigureCommand.Bool("worm", false, "worm mode, If true, a file can only be changed once, after which it becomes readonly and undeletable, see https://en.wikipedia.org/wiki/Write_once_read_many") maxFileNameLength := fsConfigureCommand.Uint("maxFileNameLength", 0, "file name length limits in bytes for compatibility with Unix-based systems") dataCenter := fsConfigureCommand.String("dataCenter", "", "assign writes to this dataCenter") rack := fsConfigureCommand.String("rack", "", "assign writes to this rack") dataNode := fsConfigureCommand.String("dataNode", "", "assign writes to this dataNode") volumeGrowthCount := fsConfigureCommand.Int("volumeGrowthCount", 0, "the number of physical volumes to add if no writable volumes") isDelete := fsConfigureCommand.Bool("delete", false, "delete the configuration by locationPrefix") apply := fsConfigureCommand.Bool("apply", false, "update and apply filer configuration") if err = fsConfigureCommand.Parse(args); err != nil { return nil } fc, err := filer.ReadFilerConf(commandEnv.option.FilerAddress, commandEnv.option.GrpcDialOption, commandEnv.MasterClient) if err != nil { return err } if *locationPrefix != "" { infoAboutSimulationMode(writer, *apply, "-apply") locConf := &filer_pb.FilerConf_PathConf{ LocationPrefix: *locationPrefix, Collection: *collection, Replication: *replication, Ttl: *ttl, Fsync: *fsync, MaxFileNameLength: uint32(*maxFileNameLength), DiskType: *diskType, VolumeGrowthCount: uint32(*volumeGrowthCount), ReadOnly: *isReadOnly, DataCenter: *dataCenter, Rack: *rack, DataNode: *dataNode, Worm: *worm, } // check collection if *collection != "" && strings.HasPrefix(*locationPrefix, "/buckets/") { return fmt.Errorf("one s3 bucket goes to one collection and not customizable") } // check replication if *replication != "" { rp, err := super_block.NewReplicaPlacementFromString(*replication) if err != nil { return fmt.Errorf("parse replication %s: %v", *replication, err) } if *volumeGrowthCount%rp.GetCopyCount() != 0 { return fmt.Errorf("volumeGrowthCount %d should be divided by replication copy count %d", *volumeGrowthCount, rp.GetCopyCount()) } } // check ttl if *ttl != "" { regex := "^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)[mhdwMy]$" match, _ := regexp.MatchString(regex, *ttl) if !match { return fmt.Errorf("ttl should be of the following format [1 to 255][unit] (e.g., 5m, 2h, 180d, 1w, 2y)") } } // save it if *isDelete { fc.DeleteLocationConf(*locationPrefix) } else { fc.AddLocationConf(locConf) } } var buf2 bytes.Buffer fc.ToText(&buf2) fmt.Fprintf(writer, string(buf2.Bytes())) fmt.Fprintln(writer) if *apply { if err = commandEnv.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error { return filer.SaveInsideFiler(client, filer.DirectoryEtcSeaweedFS, filer.FilerConfName, buf2.Bytes()) }); err != nil && err != filer_pb.ErrNotFound { return err } } return nil } func infoAboutSimulationMode(writer io.Writer, forceMode bool, forceModeOption string) { if forceMode { return } fmt.Fprintf(writer, "Running in simulation mode. Use \"%s\" option to apply the changes.\n", forceModeOption) }