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|
package driver
import (
"fmt"
"time"
"os/exec"
"github.com/chrislusf/seaweedfs/weed/glog"
"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(volumeID string, readOnly bool, driver *SeaweedFsDriver, volContext map[string]string) (Mounter, error) {
path, ok := volContext["path"]
if !ok {
path = fmt.Sprintf("/buckets/%s", volumeID)
}
collection, ok := volContext["collection"]
if !ok {
collection = volumeID
}
return newSeaweedFsMounter(volumeID, path, collection, readOnly, driver, volContext)
}
func fuseMount(path string, command string, args []string) error {
cmd := exec.Command(command, args...)
glog.V(0).Infof("Mounting fuse with command: %s and args: %s", command, args)
err := cmd.Start()
if err != nil {
glog.Errorf("running weed mount: %v", err)
return fmt.Errorf("Error fuseMount command: %s\nargs: %s\nerror: %v", command, args, err)
}
// avoid zombie processes
go func() {
if err := cmd.Wait(); err != nil {
glog.Errorf("weed mount process %d exit: %v", cmd.Process.Pid, err)
}
}()
return waitForMount(path, 10*time.Second)
}
func fuseUnmount(path string) error {
m := mount.New("")
if ok, err := m.IsLikelyNotMountPoint(path); !ok || mount.IsCorruptedMnt(err) {
if err := m.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
}
|
