seaweedfs/weed/command/mount_std.go

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//go:build linux || darwin
// +build linux darwin
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package command
import (
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"context"
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"fmt"
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"github.com/hanwen/go-fuse/v2/fuse"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/mount"
"github.com/seaweedfs/seaweedfs/weed/mount/meta_cache"
"github.com/seaweedfs/seaweedfs/weed/mount/unmount"
"github.com/seaweedfs/seaweedfs/weed/pb"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/pb/mount_pb"
"github.com/seaweedfs/seaweedfs/weed/security"
"github.com/seaweedfs/seaweedfs/weed/storage/types"
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"google.golang.org/grpc/reflection"
"net"
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"net/http"
"os"
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"os/user"
"runtime"
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"strconv"
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"strings"
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"time"
"github.com/seaweedfs/seaweedfs/weed/util"
"github.com/seaweedfs/seaweedfs/weed/util/grace"
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)
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func runMount(cmd *Command, args []string) bool {
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if *mountOptions.debug {
go http.ListenAndServe(fmt.Sprintf(":%d", *mountOptions.debugPort), nil)
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}
grace.SetupProfiling(*mountCpuProfile, *mountMemProfile)
if *mountReadRetryTime < time.Second {
*mountReadRetryTime = time.Second
}
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
}
if len(args) > 0 {
return false
}
return RunMount(&mountOptions, os.FileMode(umask))
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}
func RunMount(option *MountOptions, umask os.FileMode) bool {
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// basic checks
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chunkSizeLimitMB := *mountOptions.chunkSizeLimitMB
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if chunkSizeLimitMB <= 0 {
fmt.Printf("Please specify a reasonable buffer size.")
return false
}
// try to connect to filer
filerAddresses := pb.ServerAddresses(*option.filer).ToAddresses()
util.LoadConfiguration("security", false)
grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
var cipher bool
var err error
for i := 0; i < 10; i++ {
err = pb.WithOneOfGrpcFilerClients(false, filerAddresses, 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 %v configuration: %v", filerAddresses, err)
}
cipher = resp.Cipher
return nil
})
if err != nil {
glog.V(0).Infof("failed to talk to filer %v: %v", filerAddresses, err)
glog.V(0).Infof("wait for %d seconds ...", i+1)
time.Sleep(time.Duration(i+1) * time.Second)
}
}
if err != nil {
glog.Errorf("failed to talk to filer %v: %v", filerAddresses, err)
return true
}
filerMountRootPath := *option.filerMountRootPath
// clean up mount point
dir := util.ResolvePath(*option.dir)
if dir == "" {
fmt.Printf("Please specify the mount directory via \"-dir\"")
return false
}
unmount.Unmount(dir)
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// start on local unix socket
if *option.localSocket == "" {
mountDirHash := util.HashToInt32([]byte(dir))
if mountDirHash < 0 {
mountDirHash = -mountDirHash
}
*option.localSocket = fmt.Sprintf("/tmp/seaweedfs-mount-%d.sock", mountDirHash)
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}
if err := os.Remove(*option.localSocket); err != nil && !os.IsNotExist(err) {
glog.Fatalf("Failed to remove %s, error: %s", *option.localSocket, err.Error())
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}
montSocketListener, err := net.Listen("unix", *option.localSocket)
if err != nil {
glog.Fatalf("Failed to listen on %s: %v", *option.localSocket, err)
}
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// detect mount folder mode
if *option.dirAutoCreate {
os.MkdirAll(dir, os.FileMode(0777)&^umask)
}
fileInfo, err := os.Stat(dir)
// collect uid, gid
uid, gid := uint32(0), uint32(0)
mountMode := os.ModeDir | 0777
if err == nil {
mountMode = os.ModeDir | os.FileMode(0777)&^umask
uid, gid = util.GetFileUidGid(fileInfo)
fmt.Printf("mount point owner uid=%d gid=%d mode=%s\n", uid, gid, mountMode)
} else {
fmt.Printf("can not stat %s\n", dir)
return false
}
// detect uid, gid
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)
}
}
// mapping uid, gid
uidGidMapper, err := meta_cache.NewUidGidMapper(*option.uidMap, *option.gidMap)
if err != nil {
fmt.Printf("failed to parse %s %s: %v\n", *option.uidMap, *option.gidMap, err)
return false
}
// Ensure target mount point availability
if isValid := checkMountPointAvailable(dir); !isValid {
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glog.Fatalf("Target mount point is not available: %s, please check!", dir)
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return true
}
serverFriendlyName := strings.ReplaceAll(*option.filer, ",", "+")
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// mount fuse
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fuseMountOptions := &fuse.MountOptions{
AllowOther: *option.allowOthers,
Options: option.extraOptions,
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MaxBackground: 128,
MaxWrite: 1024 * 1024 * 2,
MaxReadAhead: 1024 * 1024 * 2,
IgnoreSecurityLabels: false,
RememberInodes: false,
FsName: serverFriendlyName + ":" + filerMountRootPath,
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Name: "seaweedfs",
SingleThreaded: false,
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DisableXAttrs: *option.disableXAttr,
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Debug: *option.debug,
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EnableLocks: false,
ExplicitDataCacheControl: false,
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DirectMount: true,
DirectMountFlags: 0,
//SyncRead: false, // set to false to enable the FUSE_CAP_ASYNC_READ capability
//EnableAcl: true,
}
if *option.nonempty {
fuseMountOptions.Options = append(fuseMountOptions.Options, "nonempty")
}
if *option.readOnly {
if runtime.GOOS == "darwin" {
fuseMountOptions.Options = append(fuseMountOptions.Options, "rdonly")
} else {
fuseMountOptions.Options = append(fuseMountOptions.Options, "ro")
}
}
if runtime.GOOS == "darwin" {
// https://github-wiki-see.page/m/macfuse/macfuse/wiki/Mount-Options
ioSizeMB := 1
for ioSizeMB*2 <= *option.chunkSizeLimitMB && ioSizeMB*2 <= 32 {
ioSizeMB *= 2
}
fuseMountOptions.Options = append(fuseMountOptions.Options, "daemon_timeout=600")
fuseMountOptions.Options = append(fuseMountOptions.Options, "noapplexattr")
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// fuseMountOptions.Options = append(fuseMountOptions.Options, "novncache") // need to test effectiveness
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fuseMountOptions.Options = append(fuseMountOptions.Options, "slow_statfs")
fuseMountOptions.Options = append(fuseMountOptions.Options, "volname="+serverFriendlyName)
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fuseMountOptions.Options = append(fuseMountOptions.Options, fmt.Sprintf("iosize=%d", ioSizeMB*1024*1024))
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}
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// find mount point
mountRoot := filerMountRootPath
if mountRoot != "/" && strings.HasSuffix(mountRoot, "/") {
mountRoot = mountRoot[0 : len(mountRoot)-1]
}
seaweedFileSystem := mount.NewSeaweedFileSystem(&mount.Option{
MountDirectory: dir,
FilerAddresses: filerAddresses,
GrpcDialOption: grpcDialOption,
FilerMountRootPath: mountRoot,
Collection: *option.collection,
Replication: *option.replication,
TtlSec: int32(*option.ttlSec),
DiskType: types.ToDiskType(*option.diskType),
ChunkSizeLimit: int64(chunkSizeLimitMB) * 1024 * 1024,
ConcurrentWriters: *option.concurrentWriters,
CacheDir: *option.cacheDir,
CacheSizeMB: *option.cacheSizeMB,
DataCenter: *option.dataCenter,
Quota: int64(*option.collectionQuota) * 1024 * 1024,
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MountUid: uid,
MountGid: gid,
MountMode: mountMode,
MountCtime: fileInfo.ModTime(),
MountMtime: time.Now(),
Umask: umask,
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VolumeServerAccess: *mountOptions.volumeServerAccess,
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Cipher: cipher,
UidGidMapper: uidGidMapper,
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DisableXAttr: *option.disableXAttr,
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})
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server, err := fuse.NewServer(seaweedFileSystem, dir, fuseMountOptions)
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if err != nil {
glog.Fatalf("Mount fail: %v", err)
}
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grace.OnInterrupt(func() {
unmount.Unmount(dir)
})
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grpcS := pb.NewGrpcServer()
mount_pb.RegisterSeaweedMountServer(grpcS, seaweedFileSystem)
reflection.Register(grpcS)
go grpcS.Serve(montSocketListener)
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seaweedFileSystem.StartBackgroundTasks()
glog.V(0).Infof("mounted %s%s to %v", *option.filer, mountRoot, dir)
glog.V(0).Infof("This is SeaweedFS version %s %s %s", util.Version(), runtime.GOOS, runtime.GOARCH)
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server.Serve()
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return true
}