Merge pull request #6771 from thaJeztah/allow_empty_target

opts: MountOpt: relax client-side validation of mount target

Author: vvoland

opts/mount.go

@@ -175,10 +175,6 @@ func (m *MountOpt) Set(value string) error {
 		return errors.New("type is required")
 	}
 
-	if mount.Target == "" {
-		return errors.New("target is required")
-	}
-
 	if mount.VolumeOptions != nil && mount.Type != mounttypes.TypeVolume {
 		return fmt.Errorf("cannot mix 'volume-*' options with mount type '%s'", mount.Type)
 	}

opts/mount_test.go

@@ -113,21 +113,6 @@ func TestMountOptErrors(t *testing.T) {
 			doc:    "empty value",
 			expErr: "value is empty",
 		},
-		{
-			doc:    "missing tmpfs target",
-			value:  "type=tmpfs",
-			expErr: "target is required",
-		},
-		{
-			doc:    "missing bind target",
-			value:  "type=bind",
-			expErr: "target is required",
-		},
-		{
-			doc:    "missing volume target",
-			value:  "type=volume,source=/foo",
-			expErr: "target is required",
-		},
 		{
 			doc:    "invalid key=value",
 			value:  "type=volume,target=/foo,bogus=foo",