mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-11-25 19:49:10 +08:00
132 lines
4.0 KiB
Go
132 lines
4.0 KiB
Go
package shell
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import (
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"bytes"
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"flag"
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"fmt"
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"io"
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"strings"
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"github.com/chrislusf/seaweedfs/weed/filer"
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"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
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"github.com/chrislusf/seaweedfs/weed/storage/super_block"
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)
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func init() {
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Commands = append(Commands, &commandFsConfigure{})
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}
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type commandFsConfigure struct {
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}
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func (c *commandFsConfigure) Name() string {
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return "fs.configure"
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}
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func (c *commandFsConfigure) Help() string {
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return `configure and apply storage options for each location
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# see the current configuration file content
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fs.configure
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# trying the changes and see the possible configuration file content
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fs.configure -locationPrfix=/my/folder -collection=abc
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fs.configure -locationPrfix=/my/folder -collection=abc -ttl=7d
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# example: configure adding only 1 physical volume for each bucket collection
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fs.configure -locationPrfix=/buckets/ -volumeGrowthCount=1
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# apply the changes
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fs.configure -locationPrfix=/my/folder -collection=abc -apply
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# delete the changes
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fs.configure -locationPrfix=/my/folder -delete -apply
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`
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}
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func (c *commandFsConfigure) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
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fsConfigureCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
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locationPrefix := fsConfigureCommand.String("locationPrefix", "", "path prefix, required to update the path-specific configuration")
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collection := fsConfigureCommand.String("collection", "", "assign writes to this collection")
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replication := fsConfigureCommand.String("replication", "", "assign writes with this replication")
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ttl := fsConfigureCommand.String("ttl", "", "assign writes with this ttl")
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diskType := fsConfigureCommand.String("disk", "", "[hdd|ssd|<tag>] hard drive or solid state drive or any tag")
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fsync := fsConfigureCommand.Bool("fsync", false, "fsync for the writes")
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isReadOnly := fsConfigureCommand.Bool("readOnly", false, "disable writes")
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volumeGrowthCount := fsConfigureCommand.Int("volumeGrowthCount", 0, "the number of physical volumes to add if no writable volumes")
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isDelete := fsConfigureCommand.Bool("delete", false, "delete the configuration by locationPrefix")
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apply := fsConfigureCommand.Bool("apply", false, "update and apply filer configuration")
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if err = fsConfigureCommand.Parse(args); err != nil {
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return nil
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}
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var buf bytes.Buffer
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if err = commandEnv.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
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return filer.ReadEntry(commandEnv.MasterClient, client, filer.DirectoryEtcSeaweedFS, filer.FilerConfName, &buf)
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}); err != nil && err != filer_pb.ErrNotFound {
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return err
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}
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fc := filer.NewFilerConf()
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if buf.Len() > 0 {
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if err = fc.LoadFromBytes(buf.Bytes()); err != nil {
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return err
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}
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}
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if *locationPrefix != "" {
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locConf := &filer_pb.FilerConf_PathConf{
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LocationPrefix: *locationPrefix,
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Collection: *collection,
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Replication: *replication,
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Ttl: *ttl,
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Fsync: *fsync,
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DiskType: *diskType,
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VolumeGrowthCount: uint32(*volumeGrowthCount),
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ReadOnly: *isReadOnly,
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}
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// check collection
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if *collection != "" && strings.HasPrefix(*locationPrefix, "/buckets/") {
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return fmt.Errorf("one s3 bucket goes to one collection and not customizable")
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}
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// check replication
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if *replication != "" {
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rp, err := super_block.NewReplicaPlacementFromString(*replication)
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if err != nil {
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return fmt.Errorf("parse replication %s: %v", *replication, err)
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}
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if *volumeGrowthCount%rp.GetCopyCount() != 0 {
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return fmt.Errorf("volumeGrowthCount %d should be devided by replication copy count %d", *volumeGrowthCount, rp.GetCopyCount())
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}
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}
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// save it
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if *isDelete {
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fc.DeleteLocationConf(*locationPrefix)
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} else {
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fc.AddLocationConf(locConf)
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}
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}
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buf.Reset()
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fc.ToText(&buf)
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fmt.Fprintf(writer, string(buf.Bytes()))
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fmt.Fprintln(writer)
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if *apply {
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if err := filer.SaveAs(commandEnv.option.FilerHost, int(commandEnv.option.FilerPort), filer.DirectoryEtcSeaweedFS, filer.FilerConfName, "text/plain; charset=utf-8", &buf); err != nil {
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return err
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}
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}
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return nil
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}
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