mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-11-25 11:39:12 +08:00
261 lines
7.0 KiB
Go
261 lines
7.0 KiB
Go
// +build linux darwin freebsd
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package command
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import (
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"context"
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"fmt"
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"os"
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"os/user"
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"path"
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"path/filepath"
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"runtime"
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"strconv"
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"strings"
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"syscall"
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"time"
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"github.com/chrislusf/seaweedfs/weed/storage/types"
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"github.com/chrislusf/seaweedfs/weed/filesys/meta_cache"
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"github.com/seaweedfs/fuse"
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"github.com/seaweedfs/fuse/fs"
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"github.com/chrislusf/seaweedfs/weed/filesys"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/pb"
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"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
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"github.com/chrislusf/seaweedfs/weed/security"
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"github.com/chrislusf/seaweedfs/weed/util"
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"github.com/chrislusf/seaweedfs/weed/util/grace"
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)
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func runMount(cmd *Command, args []string) bool {
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grace.SetupProfiling(*mountCpuProfile, *mountMemProfile)
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if *mountReadRetryTime < time.Second {
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*mountReadRetryTime = time.Second
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}
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util.RetryWaitTime = *mountReadRetryTime
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umask, umaskErr := strconv.ParseUint(*mountOptions.umaskString, 8, 64)
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if umaskErr != nil {
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fmt.Printf("can not parse umask %s", *mountOptions.umaskString)
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return false
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}
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if len(args) > 0 {
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return false
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}
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return RunMount(&mountOptions, os.FileMode(umask))
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}
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func getParentInode(mountDir string) (uint64, error) {
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parentDir := filepath.Clean(filepath.Join(mountDir, ".."))
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fi, err := os.Stat(parentDir)
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if err != nil {
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return 0, err
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}
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stat, ok := fi.Sys().(*syscall.Stat_t)
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if !ok {
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return 0, nil
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}
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return stat.Ino, nil
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}
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func RunMount(option *MountOptions, umask os.FileMode) bool {
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filers := strings.Split(*option.filer, ",")
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// parse filer grpc address
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filerGrpcAddresses, err := pb.ParseServersToGrpcAddresses(filers)
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if err != nil {
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glog.V(0).Infof("ParseFilerGrpcAddress: %v", err)
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return true
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}
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util.LoadConfiguration("security", false)
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// try to connect to filer, filerBucketsPath may be useful later
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grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
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var cipher bool
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for i := 0; i < 10; i++ {
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err = pb.WithOneOfGrpcFilerClients(filerGrpcAddresses, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
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resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
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if err != nil {
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return fmt.Errorf("get filer grpc address %v configuration: %v", filerGrpcAddresses, err)
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}
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cipher = resp.Cipher
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return nil
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})
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if err != nil {
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glog.V(0).Infof("failed to talk to filer %v: %v", filerGrpcAddresses, err)
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glog.V(0).Infof("wait for %d seconds ...", i+1)
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time.Sleep(time.Duration(i+1) * time.Second)
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}
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}
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if err != nil {
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glog.Errorf("failed to talk to filer %v: %v", filerGrpcAddresses, err)
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return true
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}
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filerMountRootPath := *option.filerMountRootPath
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dir := util.ResolvePath(*option.dir)
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parentInode, err := getParentInode(dir)
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if err != nil {
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glog.Errorf("failed to retrieve inode for parent directory of %s: %v", dir, err)
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return true
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}
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fmt.Printf("This is SeaweedFS version %s %s %s\n", util.Version(), runtime.GOOS, runtime.GOARCH)
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if dir == "" {
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fmt.Printf("Please specify the mount directory via \"-dir\"")
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return false
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}
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chunkSizeLimitMB := *mountOptions.chunkSizeLimitMB
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if chunkSizeLimitMB <= 0 {
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fmt.Printf("Please specify a reasonable buffer size.")
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return false
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}
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fuse.Unmount(dir)
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// detect mount folder mode
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if *option.dirAutoCreate {
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os.MkdirAll(dir, os.FileMode(0777)&^umask)
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}
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fileInfo, err := os.Stat(dir)
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uid, gid := uint32(0), uint32(0)
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mountMode := os.ModeDir | 0777
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if err == nil {
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mountMode = os.ModeDir | os.FileMode(0777)&^umask
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uid, gid = util.GetFileUidGid(fileInfo)
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fmt.Printf("mount point owner uid=%d gid=%d mode=%s\n", uid, gid, mountMode)
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} else {
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fmt.Printf("can not stat %s\n", dir)
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return false
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}
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if uid == 0 {
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if u, err := user.Current(); err == nil {
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if parsedId, pe := strconv.ParseUint(u.Uid, 10, 32); pe == nil {
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uid = uint32(parsedId)
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}
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if parsedId, pe := strconv.ParseUint(u.Gid, 10, 32); pe == nil {
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gid = uint32(parsedId)
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}
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fmt.Printf("current uid=%d gid=%d\n", uid, gid)
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}
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}
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// mapping uid, gid
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uidGidMapper, err := meta_cache.NewUidGidMapper(*option.uidMap, *option.gidMap)
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if err != nil {
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fmt.Printf("failed to parse %s %s: %v\n", *option.uidMap, *option.gidMap, err)
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return false
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}
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// Ensure target mount point availability
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if isValid := checkMountPointAvailable(dir); !isValid {
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glog.Fatalf("Expected mount to still be active, target mount point: %s, please check!", dir)
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return true
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}
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mountName := path.Base(dir)
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options := []fuse.MountOption{
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fuse.VolumeName(mountName),
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fuse.FSName(*option.filer + ":" + filerMountRootPath),
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fuse.Subtype("seaweedfs"),
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// fuse.NoAppleDouble(), // include .DS_Store, otherwise can not delete non-empty folders
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fuse.NoAppleXattr(),
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fuse.ExclCreate(),
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fuse.DaemonTimeout("3600"),
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fuse.AllowSUID(),
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fuse.DefaultPermissions(),
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fuse.MaxReadahead(1024 * 128),
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fuse.AsyncRead(),
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fuse.WritebackCache(),
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fuse.MaxBackground(128),
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fuse.CongestionThreshold(128),
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}
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options = append(options, osSpecificMountOptions()...)
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if *option.allowOthers {
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options = append(options, fuse.AllowOther())
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}
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if *option.nonempty {
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options = append(options, fuse.AllowNonEmptyMount())
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}
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if *option.readOnly {
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options = append(options, fuse.ReadOnly())
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}
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// find mount point
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mountRoot := filerMountRootPath
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if mountRoot != "/" && strings.HasSuffix(mountRoot, "/") {
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mountRoot = mountRoot[0 : len(mountRoot)-1]
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}
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diskType := types.ToDiskType(*option.diskType)
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seaweedFileSystem := filesys.NewSeaweedFileSystem(&filesys.Option{
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MountDirectory: dir,
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FilerAddresses: filers,
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FilerGrpcAddresses: filerGrpcAddresses,
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GrpcDialOption: grpcDialOption,
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FilerMountRootPath: mountRoot,
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Collection: *option.collection,
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Replication: *option.replication,
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TtlSec: int32(*option.ttlSec),
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DiskType: diskType,
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ChunkSizeLimit: int64(chunkSizeLimitMB) * 1024 * 1024,
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ConcurrentWriters: *option.concurrentWriters,
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CacheDir: *option.cacheDir,
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CacheSizeMB: *option.cacheSizeMB,
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DataCenter: *option.dataCenter,
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MountUid: uid,
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MountGid: gid,
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MountMode: mountMode,
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MountCtime: fileInfo.ModTime(),
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MountMtime: time.Now(),
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MountParentInode: parentInode,
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Umask: umask,
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VolumeServerAccess: *mountOptions.volumeServerAccess,
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Cipher: cipher,
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UidGidMapper: uidGidMapper,
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})
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// mount
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c, err := fuse.Mount(dir, options...)
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if err != nil {
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glog.V(0).Infof("mount: %v", err)
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return true
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}
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defer fuse.Unmount(dir)
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grace.OnInterrupt(func() {
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fuse.Unmount(dir)
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c.Close()
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})
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glog.V(0).Infof("mounted %s%s to %v", *option.filer, mountRoot, dir)
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server := fs.New(c, nil)
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seaweedFileSystem.Server = server
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seaweedFileSystem.StartBackgroundTasks()
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err = server.Serve(seaweedFileSystem)
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// check if the mount process has an error to report
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<-c.Ready
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if err := c.MountError; err != nil {
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glog.V(0).Infof("mount process: %v", err)
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return true
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}
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return true
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}
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