package shell import ( "context" "flag" "fmt" "github.com/chrislusf/seaweedfs/weed/filer" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" "github.com/chrislusf/seaweedfs/weed/util" "github.com/golang/protobuf/proto" "io" "regexp" "strings" ) func init() { Commands = append(Commands, &commandRemoteConfigure{}) } type commandRemoteConfigure struct { } func (c *commandRemoteConfigure) Name() string { return "remote.configure" } func (c *commandRemoteConfigure) Help() string { return `remote storage configuration # see the current configurations remote.configure # set or update a configuration remote.configure -name=cloud1 -type=s3 -access_key=xxx -secret_key=yyy # delete one configuration remote.configure -delete -name=cloud1 ` } var ( isAlpha = regexp.MustCompile(`^[A-Za-z][A-Za-z0-9]*$`).MatchString ) func (c *commandRemoteConfigure) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) { conf := &filer_pb.RemoteConf{} remoteConfigureCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError) isDelete := remoteConfigureCommand.Bool("delete", false, "delete one remote storage by its name") remoteConfigureCommand.StringVar(&conf.Name, "name", "", "a short name to identify the remote storage") remoteConfigureCommand.StringVar(&conf.Type, "type", "s3", "storage type, currently only support s3") remoteConfigureCommand.StringVar(&conf.S3AccessKey, "s3.access_key", "", "s3 access key") remoteConfigureCommand.StringVar(&conf.S3SecretKey, "s3.secret_key", "", "s3 secret key") remoteConfigureCommand.StringVar(&conf.S3Region, "s3.region", "us-east-2", "s3 region") remoteConfigureCommand.StringVar(&conf.S3Endpoint, "s3.endpoint", "", "endpoint for s3-compatible local object store") if err = remoteConfigureCommand.Parse(args); err != nil { return nil } if conf.Name == "" { return c.listExistingRemoteStorages(commandEnv, writer) } if !isAlpha(conf.Name) { return fmt.Errorf("only letters and numbers allowed in name: %v", conf.Name) } if *isDelete { return c.deleteRemoteStorage(commandEnv, writer, conf.Name) } return c.saveRemoteStorage(commandEnv, writer, conf) } func (c *commandRemoteConfigure) listExistingRemoteStorages(commandEnv *CommandEnv, writer io.Writer) error { return filer_pb.ReadDirAllEntries(commandEnv, util.FullPath(filer.DirectoryEtcRemote), "", func(entry *filer_pb.Entry, isLast bool) error { if len(entry.Content) == 0 { fmt.Fprintf(writer, "skipping %s\n", entry.Name) return nil } if !strings.HasSuffix(entry.Name, filer.REMOTE_STORAGE_CONF_SUFFIX) { return nil } conf := &filer_pb.RemoteConf{} if err := proto.Unmarshal(entry.Content, conf); err != nil { return fmt.Errorf("unmarshal %s/%s: %v", filer.DirectoryEtcRemote, entry.Name, err) } conf.S3SecretKey = "" fmt.Fprintf(writer, "%+v\n", conf) return nil }) } func (c *commandRemoteConfigure) deleteRemoteStorage(commandEnv *CommandEnv, writer io.Writer, storageName string) error { return commandEnv.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error { request := &filer_pb.DeleteEntryRequest{ Directory: filer.DirectoryEtcRemote, Name: storageName + filer.REMOTE_STORAGE_CONF_SUFFIX, IgnoreRecursiveError: false, IsDeleteData: true, IsRecursive: true, IsFromOtherCluster: false, Signatures: nil, } _, err := client.DeleteEntry(context.Background(), request) if err == nil { fmt.Fprintf(writer, "removed: %s\n", storageName) } return err }) } func (c *commandRemoteConfigure) saveRemoteStorage(commandEnv *CommandEnv, writer io.Writer, conf *filer_pb.RemoteConf) error { data, err := proto.Marshal(conf) if err != nil { return err } if err = commandEnv.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error { return filer.SaveInsideFiler(client, filer.DirectoryEtcRemote, conf.Name+filer.REMOTE_STORAGE_CONF_SUFFIX, data) }); err != nil && err != filer_pb.ErrNotFound { return err } return nil }