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package driver
import (
"fmt"
"time"
"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/golang/glog"
"google.golang.org/grpc"
"os/exec"
"k8s.io/utils/mount"
)
// Config holds values to configure the driver
type Config struct {
// Region string
Filer string
}
type Mounter interface {
Mount(target string) error
}
func newMounter(bucketName string, cfg *Config) (Mounter, error) {
return newSeaweedFsMounter(bucketName, cfg)
}
func fuseMount(path string, command string, args []string) error {
cmd := exec.Command(command, args...)
glog.V(3).Infof("Mounting fuse with command: %s and args: %s", command, args)
out, err := cmd.CombinedOutput()
if err != nil {
return fmt.Errorf("Error fuseMount command: %s\nargs: %s\noutput: %s", command, args, out)
}
return waitForMount(path, 10*time.Second)
}
func fuseUnmount(path string) error {
if err := mount.New("").Unmount(path); err != nil {
return err
}
// as fuse quits immediately, we will try to wait until the process is done
process, err := findFuseMountProcess(path)
if err != nil {
glog.Errorf("Error getting PID of fuse mount: %s", err)
return nil
}
if process == nil {
glog.Warningf("Unable to find PID of fuse mount %s, it must have finished already", path)
return nil
}
glog.Infof("Found fuse pid %v of mount %s, checking if it still runs", process.Pid, path)
return waitForProcess(process, 1)
}
func newConfigFromSecrets(secrets map[string]string) *Config {
t := &Config{
Filer: secrets["filer"],
}
return t
}
var _ = filer_pb.FilerClient(&Config{})
func (cfg *Config) WithFilerClient(fn func(filer_pb.SeaweedFilerClient) error) error {
filerGrpcAddress, parseErr := pb.ParseServerToGrpcAddress(cfg.Filer)
if parseErr != nil {
return fmt.Errorf("failed to parse filer %v: %v", filerGrpcAddress, parseErr)
}
grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
return pb.WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
client := filer_pb.NewSeaweedFilerClient(grpcConnection)
return fn(client)
}, filerGrpcAddress, grpcDialOption)
}
func (cfg *Config) AdjustedUrl(hostAndPort string) string {
return hostAndPort
}
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