mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-08-28 20:50:48 +02:00
122 lines
3.7 KiB
Go
122 lines
3.7 KiB
Go
package shell
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import (
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"flag"
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"fmt"
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"github.com/seaweedfs/seaweedfs/weed/filer"
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"github.com/seaweedfs/seaweedfs/weed/pb/remote_pb"
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"github.com/seaweedfs/seaweedfs/weed/remote_storage"
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"github.com/seaweedfs/seaweedfs/weed/util"
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"io"
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"path/filepath"
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"regexp"
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)
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func init() {
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Commands = append(Commands, &commandRemoteMountBuckets{})
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}
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type commandRemoteMountBuckets struct {
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}
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func (c *commandRemoteMountBuckets) Name() string {
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return "remote.mount.buckets"
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}
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func (c *commandRemoteMountBuckets) Help() string {
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return `mount all buckets in remote storage and pull its metadata
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# assume a remote storage is configured to name "cloud1"
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remote.configure -name=cloud1 -type=s3 -s3.access_key=xxx -s3.secret_key=yyy
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# mount all buckets
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remote.mount.buckets -remote=cloud1
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# after mount, start a separate process to write updates to remote storage
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weed filer.remote.sync -filer=<filerHost>:<filerPort> -createBucketAt=cloud1
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`
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}
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func (c *commandRemoteMountBuckets) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
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remoteMountBucketsCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
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remote := remoteMountBucketsCommand.String("remote", "", "an already configured storage name")
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bucketPattern := remoteMountBucketsCommand.String("bucketPattern", "", "match existing bucket name with wildcard characters '*' and '?'")
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trimBucketSuffix := remoteMountBucketsCommand.Bool("trimBucketSuffix", true, "remote suffix auto generated by 'weed filer.remote.sync'")
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apply := remoteMountBucketsCommand.Bool("apply", false, "apply the mount for listed buckets")
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if err = remoteMountBucketsCommand.Parse(args); err != nil {
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return nil
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}
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infoAboutSimulationMode(writer, *apply, "-apply")
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if *remote == "" {
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_, err = listExistingRemoteStorageMounts(commandEnv, writer)
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return err
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}
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// find configuration for remote storage
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remoteConf, err := filer.ReadRemoteStorageConf(commandEnv.option.GrpcDialOption, commandEnv.option.FilerAddress, *remote)
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if err != nil {
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return fmt.Errorf("find configuration for %s: %v", *remote, err)
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}
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// get storage client
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remoteStorageClient, err := remote_storage.GetRemoteStorage(remoteConf)
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if err != nil {
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return fmt.Errorf("get storage client for %s: %v", *remote, err)
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}
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buckets, err := remoteStorageClient.ListBuckets()
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if err != nil {
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return fmt.Errorf("list buckets on %s: %v", *remote, err)
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}
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fillerBucketsPath, err := readFilerBucketsPath(commandEnv)
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if err != nil {
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return fmt.Errorf("read filer buckets path: %v", err)
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}
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hasSuffixPattern, _ := regexp.Compile(".+-[0-9][0-9][0-9][0-9]")
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for _, bucket := range buckets {
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if *bucketPattern != "" {
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if matched, _ := filepath.Match(*bucketPattern, bucket.Name); !matched {
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continue
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}
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}
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fmt.Fprintf(writer, "bucket %s\n", bucket.Name)
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localBucketName := bucket.Name
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if *trimBucketSuffix {
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if hasSuffixPattern.MatchString(localBucketName) {
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localBucketName = localBucketName[:len(localBucketName)-5]
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fmt.Fprintf(writer, " mount bucket %s as %s\n", bucket.Name, localBucketName)
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}
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}
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if *apply {
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dir := util.FullPath(fillerBucketsPath).Child(localBucketName)
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remoteStorageLocation := &remote_pb.RemoteStorageLocation{
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Name: *remote,
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Bucket: bucket.Name,
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Path: "/",
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}
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// sync metadata from remote
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if err = syncMetadata(commandEnv, writer, string(dir), true, remoteConf, remoteStorageLocation); err != nil {
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return fmt.Errorf("pull metadata on %+v: %v", remoteStorageLocation, err)
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}
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// store a mount configuration in filer
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if err = filer.InsertMountMapping(commandEnv, string(dir), remoteStorageLocation); err != nil {
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return fmt.Errorf("save mount mapping %s to %+v: %v", dir, remoteStorageLocation, err)
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}
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}
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}
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return nil
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}
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