package shell import ( "flag" "fmt" "github.com/chrislusf/seaweedfs/weed/filer" "github.com/chrislusf/seaweedfs/weed/pb/remote_pb" "github.com/chrislusf/seaweedfs/weed/remote_storage" "github.com/chrislusf/seaweedfs/weed/util" "io" "path/filepath" "regexp" ) func init() { Commands = append(Commands, &commandRemoteMountBuckets{}) } type commandRemoteMountBuckets struct { } func (c *commandRemoteMountBuckets) Name() string { return "remote.mount.buckets" } func (c *commandRemoteMountBuckets) Help() string { return `mount all buckets in remote storage and pull its metadata # assume a remote storage is configured to name "cloud1" remote.configure -name=cloud1 -type=s3 -s3.access_key=xxx -s3.secret_key=yyy # mount all buckets remote.mount.buckets -remote=cloud1 # after mount, start a separate process to write updates to remote storage weed filer.remote.sync -filer=: -createBucketAt=cloud1 ` } func (c *commandRemoteMountBuckets) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) { remoteMountBucketsCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError) remote := remoteMountBucketsCommand.String("remote", "", "an already configured storage name") bucketPattern := remoteMountBucketsCommand.String("bucketPattern", "", "match existing bucket name with wildcard characters '*' and '?'") trimBucketSuffix := remoteMountBucketsCommand.Bool("trimBucketSuffix", true, "remote suffix auto generated by 'weed filer.remote.sync'") apply := remoteMountBucketsCommand.Bool("apply", false, "apply the mount for listed buckets") if err = remoteMountBucketsCommand.Parse(args); err != nil { return nil } if *remote == "" { _, err = listExistingRemoteStorageMounts(commandEnv, writer) return err } // find configuration for remote storage remoteConf, err := filer.ReadRemoteStorageConf(commandEnv.option.GrpcDialOption, commandEnv.option.FilerAddress, *remote) if err != nil { return fmt.Errorf("find configuration for %s: %v", *remote, err) } // get storage client remoteStorageClient, err := remote_storage.GetRemoteStorage(remoteConf) if err != nil { return fmt.Errorf("get storage client for %s: %v", *remote, err) } buckets, err := remoteStorageClient.ListBuckets() if err != nil { return fmt.Errorf("list buckets on %s: %v", *remote, err) } fillerBucketsPath, err := readFilerBucketsPath(commandEnv) if err != nil { return fmt.Errorf("read filer buckets path: %v", err) } hasSuffixPattern, _ := regexp.Compile(".+-[0-9][0-9][0-9][0-9]") for _, bucket := range buckets { if *bucketPattern != "" { if matched, _ := filepath.Match(*bucketPattern, bucket.Name); !matched { continue } } fmt.Fprintf(writer, "bucket %s\n", bucket.Name) localBucketName := bucket.Name if *trimBucketSuffix { if hasSuffixPattern.MatchString(localBucketName) { localBucketName = localBucketName[:len(localBucketName)-5] fmt.Fprintf(writer, " mount bucket %s as %s\n", bucket.Name, localBucketName) } } if *apply { dir := util.FullPath(fillerBucketsPath).Child(localBucketName) remoteStorageLocation := &remote_pb.RemoteStorageLocation{ Name: *remote, Bucket: bucket.Name, Path: "/", } // sync metadata from remote if err = syncMetadata(commandEnv, writer, string(dir), true, remoteConf, remoteStorageLocation); err != nil { return fmt.Errorf("pull metadata on %+v: %v", remoteStorageLocation, err) } // store a mount configuration in filer if err = filer.InsertMountMapping(commandEnv, string(dir), remoteStorageLocation); err != nil { return fmt.Errorf("save mount mapping %s to %+v: %v", dir, remoteStorageLocation, err) } } } return nil }