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- // +build linux darwin freebsd
- package command
- import (
- "context"
- "fmt"
- "os"
- "os/user"
- "path"
- "runtime"
- "strconv"
- "strings"
- "time"
- "github.com/seaweedfs/fuse"
- "github.com/seaweedfs/fuse/fs"
- "github.com/chrislusf/seaweedfs/weed/filesys"
- "github.com/chrislusf/seaweedfs/weed/glog"
- "github.com/chrislusf/seaweedfs/weed/pb"
- "github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
- "github.com/chrislusf/seaweedfs/weed/security"
- "github.com/chrislusf/seaweedfs/weed/util"
- "github.com/chrislusf/seaweedfs/weed/util/grace"
- )
- func runMount(cmd *Command, args []string) bool {
- grace.SetupProfiling(*mountCpuProfile, *mountMemProfile)
- umask, umaskErr := strconv.ParseUint(*mountOptions.umaskString, 8, 64)
- if umaskErr != nil {
- fmt.Printf("can not parse umask %s", *mountOptions.umaskString)
- return false
- }
- if len(args) > 0 {
- return false
- }
- return RunMount(&mountOptions, os.FileMode(umask))
- }
- func RunMount(option *MountOptions, umask os.FileMode) bool {
- filer := *option.filer
- // parse filer grpc address
- filerGrpcAddress, err := pb.ParseFilerGrpcAddress(filer)
- if err != nil {
- glog.V(0).Infof("ParseFilerGrpcAddress: %v", err)
- return true
- }
- // try to connect to filer, filerBucketsPath may be useful later
- grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
- var cipher bool
- err = pb.WithGrpcFilerClient(filerGrpcAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
- resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
- if err != nil {
- return fmt.Errorf("get filer grpc address %s configuration: %v", filerGrpcAddress, err)
- }
- cipher = resp.Cipher
- return nil
- })
- if err != nil {
- glog.Infof("failed to talk to filer %s: %v", filerGrpcAddress, err)
- return true
- }
- filerMountRootPath := *option.filerMountRootPath
- dir := util.ResolvePath(*option.dir)
- chunkSizeLimitMB := *mountOptions.chunkSizeLimitMB
- util.LoadConfiguration("security", false)
- fmt.Printf("This is SeaweedFS version %s %s %s\n", util.Version(), runtime.GOOS, runtime.GOARCH)
- if dir == "" {
- fmt.Printf("Please specify the mount directory via \"-dir\"")
- return false
- }
- if chunkSizeLimitMB <= 0 {
- fmt.Printf("Please specify a reasonable buffer size.")
- return false
- }
- fuse.Unmount(dir)
- uid, gid := uint32(0), uint32(0)
- // detect mount folder mode
- if *option.dirAutoCreate {
- os.MkdirAll(dir, 0755)
- }
- mountMode := os.ModeDir | 0755
- fileInfo, err := os.Stat(dir)
- if err == nil {
- mountMode = os.ModeDir | fileInfo.Mode()
- uid, gid = util.GetFileUidGid(fileInfo)
- fmt.Printf("mount point owner uid=%d gid=%d mode=%s\n", uid, gid, fileInfo.Mode())
- } else {
- fmt.Printf("can not stat %s\n", dir)
- return false
- }
- if uid == 0 {
- if u, err := user.Current(); err == nil {
- if parsedId, pe := strconv.ParseUint(u.Uid, 10, 32); pe == nil {
- uid = uint32(parsedId)
- }
- if parsedId, pe := strconv.ParseUint(u.Gid, 10, 32); pe == nil {
- gid = uint32(parsedId)
- }
- fmt.Printf("current uid=%d gid=%d\n", uid, gid)
- }
- }
- // Ensure target mount point availability
- if isValid := checkMountPointAvailable(dir); !isValid {
- glog.Fatalf("Expected mount to still be active, target mount point: %s, please check!", dir)
- return true
- }
- mountName := path.Base(dir)
- options := []fuse.MountOption{
- fuse.VolumeName(mountName),
- fuse.FSName(filer + ":" + filerMountRootPath),
- fuse.Subtype("seaweedfs"),
- // fuse.NoAppleDouble(), // include .DS_Store, otherwise can not delete non-empty folders
- fuse.NoAppleXattr(),
- fuse.NoBrowse(),
- fuse.AutoXattr(),
- fuse.ExclCreate(),
- fuse.DaemonTimeout("3600"),
- fuse.AllowSUID(),
- fuse.DefaultPermissions(),
- fuse.MaxReadahead(1024 * 128),
- fuse.AsyncRead(),
- fuse.WritebackCache(),
- }
- options = append(options, osSpecificMountOptions()...)
- if *option.allowOthers {
- options = append(options, fuse.AllowOther())
- }
- if *option.nonempty {
- options = append(options, fuse.AllowNonEmptyMount())
- }
- // find mount point
- mountRoot := filerMountRootPath
- if mountRoot != "/" && strings.HasSuffix(mountRoot, "/") {
- mountRoot = mountRoot[0 : len(mountRoot)-1]
- }
- seaweedFileSystem := filesys.NewSeaweedFileSystem(&filesys.Option{
- FilerGrpcAddress: filerGrpcAddress,
- GrpcDialOption: grpcDialOption,
- FilerMountRootPath: mountRoot,
- Collection: *option.collection,
- Replication: *option.replication,
- TtlSec: int32(*option.ttlSec),
- ChunkSizeLimit: int64(chunkSizeLimitMB) * 1024 * 1024,
- CacheDir: *option.cacheDir,
- CacheSizeMB: *option.cacheSizeMB,
- DataCenter: *option.dataCenter,
- EntryCacheTtl: 3 * time.Second,
- MountUid: uid,
- MountGid: gid,
- MountMode: mountMode,
- MountCtime: fileInfo.ModTime(),
- MountMtime: time.Now(),
- Umask: umask,
- OutsideContainerClusterMode: *mountOptions.outsideContainerClusterMode,
- Cipher: cipher,
- })
- // mount
- c, err := fuse.Mount(dir, options...)
- if err != nil {
- glog.V(0).Infof("mount: %v", err)
- return true
- }
- defer fuse.Unmount(dir)
- grace.OnInterrupt(func() {
- fuse.Unmount(dir)
- c.Close()
- })
- glog.V(0).Infof("mounted %s%s to %s", filer, mountRoot, dir)
- err = fs.Serve(c, seaweedFileSystem)
- // check if the mount process has an error to report
- <-c.Ready
- if err := c.MountError; err != nil {
- glog.V(0).Infof("mount process: %v", err)
- return true
- }
- return true
- }
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