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package driver
import (
"fmt"
"github.com/seaweedfs/seaweedfs-csi-driver/pkg/mountmanager"
"github.com/seaweedfs/seaweedfs/weed/glog"
)
type Unmounter interface {
Unmount() error
}
type Mounter interface {
Mount(target string) (Unmounter, error)
}
type mountServiceMounter struct {
driver *SeaweedFsDriver
volumeID string
readOnly bool
volContext map[string]string
client *mountmanager.Client
}
type mountServiceUnmounter struct {
client *mountmanager.Client
volumeID string
}
func newMounter(volumeID string, readOnly bool, driver *SeaweedFsDriver, volContext map[string]string) (Mounter, error) {
client, err := mountmanager.NewClient(driver.mountEndpoint)
if err != nil {
return nil, err
}
contextCopy := make(map[string]string, len(volContext))
for k, v := range volContext {
contextCopy[k] = v
}
return &mountServiceMounter{
driver: driver,
volumeID: volumeID,
readOnly: readOnly,
volContext: contextCopy,
client: client,
}, nil
}
func (m *mountServiceMounter) Mount(target string) (Unmounter, error) {
if target == "" {
return nil, fmt.Errorf("target path is required")
}
filers := make([]string, len(m.driver.filers))
for i, address := range m.driver.filers {
filers[i] = string(address)
}
req := &mountmanager.MountRequest{
VolumeID: m.volumeID,
TargetPath: target,
ReadOnly: m.readOnly,
Filers: filers,
CacheDir: m.driver.CacheDir,
CacheCapacityMB: m.driver.CacheCapacityMB,
ConcurrentWriters: m.driver.ConcurrentWriters,
UidMap: m.driver.UidMap,
GidMap: m.driver.GidMap,
DataCenter: m.driver.DataCenter,
DataLocality: m.driver.DataLocality.String(),
VolumeContext: m.volContext,
}
resp, err := m.client.Mount(req)
if err != nil {
return nil, err
}
expectedSocket := mountmanager.LocalSocketPath(m.volumeID)
if resp.LocalSocket != "" && resp.LocalSocket != expectedSocket {
glog.Warningf("mount service returned socket %s for volume %s (expected %s)", resp.LocalSocket, m.volumeID, expectedSocket)
}
return &mountServiceUnmounter{
client: m.client,
volumeID: m.volumeID,
}, nil
}
func (u *mountServiceUnmounter) Unmount() error {
_, err := u.client.Unmount(&mountmanager.UnmountRequest{VolumeID: u.volumeID})
return err
}
|
