package shell import ( "bytes" "flag" "fmt" "io" "math" "net/http" "strings" "github.com/chrislusf/seaweedfs/weed/filer" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" "github.com/chrislusf/seaweedfs/weed/storage/super_block" "github.com/chrislusf/seaweedfs/weed/util" ) 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") fsync := fsConfigureCommand.Bool("fsync", false, "fsync for the 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 { request := &filer_pb.LookupDirectoryEntryRequest{ Directory: filer.DirectoryEtc, Name: filer.FilerConfName, } respLookupEntry, err := filer_pb.LookupEntry(client, request) if err != nil { return err } return filer.StreamContent(commandEnv.MasterClient, &buf, respLookupEntry.Entry.Chunks, 0, math.MaxInt64) }); err != nil { return err } fc := filer.NewFilerConf() 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, VolumeGrowthCount: uint32(*volumeGrowthCount), } // 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 { target := fmt.Sprintf("http://%s:%d%s/%s", commandEnv.option.FilerHost, commandEnv.option.FilerPort, filer.DirectoryEtc, filer.FilerConfName) // set the HTTP method, url, and request body req, err := http.NewRequest(http.MethodPut, target, &buf) if err != nil { return err } // set the request header Content-Type for json req.Header.Set("Content-Type", "text/plain; charset=utf-8") resp, err := http.DefaultClient.Do(req) if err != nil { return err } util.CloseResponse(resp) } return nil }