seaweedfs/weed/command/mount.go
2018-07-21 20:42:14 -07:00

74 lines
2.5 KiB
Go

package command
import (
"strings"
"fmt"
"strconv"
)
type MountOptions struct {
filer *string
filerGrpcPort *int
filerMountRootPath *string
dir *string
collection *string
replication *string
ttlSec *int
chunkSizeLimitMB *int
dataCenter *string
}
var (
mountOptions MountOptions
)
func init() {
cmdMount.Run = runMount // break init cycle
mountOptions.filer = cmdMount.Flag.String("filer", "localhost:8888", "weed filer location")
mountOptions.filerGrpcPort = cmdMount.Flag.Int("filer.grpc.port", 0, "filer grpc server listen port, default to http port + 10000")
mountOptions.filerMountRootPath = cmdMount.Flag.String("filer.path", "/", "mount this remote path from filer server")
mountOptions.dir = cmdMount.Flag.String("dir", ".", "mount weed filer to this directory")
mountOptions.collection = cmdMount.Flag.String("collection", "", "collection to create the files")
mountOptions.replication = cmdMount.Flag.String("replication", "000", "replication to create to files")
mountOptions.ttlSec = cmdMount.Flag.Int("ttl", 0, "file ttl in seconds")
mountOptions.chunkSizeLimitMB = cmdMount.Flag.Int("chunkSizeLimitMB", 16, "local write buffer size, also chunk large files")
mountOptions.dataCenter = cmdMount.Flag.String("dataCenter", "", "prefer to write to the data center")
}
var cmdMount = &Command{
UsageLine: "mount -filer=localhost:8888 -dir=/some/dir",
Short: "mount weed filer to a directory as file system in userspace(FUSE)",
Long: `mount weed filer to userspace.
Pre-requisites:
1) have SeaweedFS master and volume servers running
2) have a "weed filer" running
These 2 requirements can be achieved with one command "weed server -filer=true"
This uses bazil.org/fuse, which enables writing FUSE file systems on
Linux, and OS X.
On OS X, it requires OSXFUSE (http://osxfuse.github.com/).
`,
}
func parseFilerGrpcAddress(filer string, optionalGrpcPort int) (filerGrpcAddress string, err error) {
hostnameAndPort := strings.Split(filer, ":")
if len(hostnameAndPort) != 2 {
return "", fmt.Errorf("The filer should have hostname:port format: %v", hostnameAndPort)
}
filerPort, parseErr := strconv.ParseUint(hostnameAndPort[1], 10, 64)
if parseErr != nil {
return "", fmt.Errorf("The filer filer port parse error: %v", parseErr)
}
filerGrpcPort := int(filerPort) + 10000
if optionalGrpcPort != 0 {
filerGrpcPort = optionalGrpcPort
}
return fmt.Sprintf("%s:%d", hostnameAndPort[0], filerGrpcPort), nil
}