JovianDSS: fix iscsi target recovery function

ensure_target_volume does not convert volume name to a proper form,
causing failure in case of partial target recovery.
This patch fixes name convertion.

Added import of i18n to handle errors related to _

Change-Id: I567f09b96e4167b387f5bafc434b0b093b6b11fa
Closes-Bug: #1941746

cinder/tests/unit/volume/drivers/open_e/test_iscsi.py

@@ -1223,7 +1223,7 @@ class TestOpenEJovianDSSDriver(test.TestCase):
         patches = [
             mock.patch.object(
                 jdssd,
-                "_create_target_volume",
+                "_ensure_target_volume",
                 return_value=None),
             mock.patch.object(
                 jdssd,
@@ -1233,7 +1233,7 @@ class TestOpenEJovianDSSDriver(test.TestCase):
         self.start_patches(patches)
 
         ret = jdssd.create_export(ctx, vol, "connector")
-        jdssd._create_target_volume.assert_called_once_with(vol)
+        jdssd._ensure_target_volume.assert_called_once_with(vol)
 
         self.stop_patches(patches)
 
@@ -1397,6 +1397,8 @@ class TestOpenEJovianDSSDriver(test.TestCase):
 
         vol = fake_volume.fake_volume_obj(ctx)
         vol.id = UUID_1
+        vname = jcom.vname(UUID_1)
+
         target_name = CONFIG_OK['target_prefix'] + UUID_1
         vol.provider_auth = 'chap user_name 123456789012'
 
@@ -1417,7 +1419,8 @@ class TestOpenEJovianDSSDriver(test.TestCase):
         jdssd._ensure_target_volume(vol)
 
         jdssd.ra.is_target.assert_called_once_with(target_name)
-        jdssd.ra.is_target_lun.assert_called_once_with(target_name, UUID_1)
+
+        jdssd.ra.is_target_lun.assert_called_once_with(target_name, vname)
 
         jdssd.ra.get_target_user.assert_called_once_with(target_name)
 
@@ -1452,7 +1455,7 @@ class TestOpenEJovianDSSDriver(test.TestCase):
         jdssd._ensure_target_volume(vol)
 
         jdssd.ra.is_target.assert_called_once_with(target_name)
-        jdssd.ra.is_target_lun.assert_called_once_with(target_name, UUID_1)
+        jdssd.ra.is_target_lun.assert_called_once_with(target_name, vname)
 
         jdssd._attach_target_volume.assert_called_once_with(
             target_name, vname)

cinder/volume/drivers/open_e/iscsi.py

@@ -694,7 +694,7 @@ class JovianISCSIDriver(driver.ISCSIDriver):
         """
         LOG.debug("create export for volume: %s.", volume.id)
 
-        self._create_target_volume(volume)
+        self._ensure_target_volume(volume)
 
         return {'provider_location': self._get_provider_location(volume.id)}
 
@@ -876,8 +876,8 @@ class JovianISCSIDriver(driver.ISCSIDriver):
             self._create_target_volume(volume)
             return
 
-        if not self.ra.is_target_lun(target_name, volume.id):
+        vname = jcom.vname(volume.id)
-            vname = jcom.vname(volume.id)
+        if not self.ra.is_target_lun(target_name, vname):
             self._attach_target_volume(target_name, vname)
 
         try:

cinder/volume/drivers/open_e/jovian_common/rest.py

@@ -20,6 +20,7 @@ import re
 from oslo_log import log as logging
 
 from cinder import exception
+from cinder.i18n import _
 from cinder.volume.drivers.open_e.jovian_common import exception as jexc
 from cinder.volume.drivers.open_e.jovian_common import rest_proxy
 
@@ -45,8 +46,8 @@ class JovianRESTAPI(object):
             code = resp.get('code', 'Unknown')
             msg = resp.get('message', 'Unknown')
 
-            reason = ("Request to {url} failed with code: {code} "
+            reason = _("Request to {url} failed with code: {code} "
-                      "of type:{eclass} reason:{message}")
+                       "of type:{eclass} reason:{message}")
             reason = reason.format(eclass=eclass,
                                    code=code,
                                    message=msg,
@@ -166,7 +167,7 @@ class JovianRESTAPI(object):
 
         if resp["error"]:
             raise jexc.JDSSRESTException(
-                'Failed to extend volume {}'.format(resp['error']['message']))
+                _('Failed to extend volume %s' % resp['error']['message']))
 
         raise jexc.JDSSRESTException('Failed to extend volume.')
 

releasenotes/notes/fix-ensure-export-3cccf107a82b35a0.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    JovianDSS driver: `Bug #1941746 <https://bugs.launchpad.net/cinder/+bug/1941746>`_: Fixed
+    Fix ensure_export function failure in case of partial target recovery.