package shell import ( "bytes" "flag" "fmt" "io" "strings" "github.com/chrislusf/seaweedfs/weed/filer" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" "github.com/chrislusf/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 -locationPrfix=/my/folder -collection=abc fs.configure -locationPrfix=/my/folder -collection=abc -ttl=7d # example: configure adding only 1 physical volume for each bucket collection fs.configure -locationPrfix=/buckets/ -volumeGrowthCount=1 # apply the changes fs.configure -locationPrfix=/my/folder -collection=abc -apply # delete the changes fs.configure -locationPrfix=/my/folder -delete -apply ` } 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") 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") 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 } var buf bytes.Buffer if err = commandEnv.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error { return filer.ReadEntry(commandEnv.MasterClient, client, filer.DirectoryEtcSeaweedFS, filer.FilerConfName, &buf) }); err != nil && err != filer_pb.ErrNotFound { return err } fc := filer.NewFilerConf() if buf.Len() > 0 { if err = fc.LoadFromBytes(buf.Bytes()); err != nil { return err } } if *locationPrefix != "" { locConf := &filer_pb.FilerConf_PathConf{ LocationPrefix: *locationPrefix, Collection: *collection, Replication: *replication, Ttl: *ttl, Fsync: *fsync, DiskType: *diskType, VolumeGrowthCount: uint32(*volumeGrowthCount), ReadOnly: *isReadOnly, } // 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 devided by replication copy count %d", *volumeGrowthCount, rp.GetCopyCount()) } } // save it if *isDelete { fc.DeleteLocationConf(*locationPrefix) } else { fc.AddLocationConf(locConf) } } buf.Reset() fc.ToText(&buf) fmt.Fprintf(writer, string(buf.Bytes())) fmt.Fprintln(writer) if *apply { if err := filer.SaveAs(commandEnv.option.FilerHost, int(commandEnv.option.FilerPort), filer.DirectoryEtcSeaweedFS, filer.FilerConfName, "text/plain; charset=utf-8", &buf); err != nil { return err } } return nil }