[upstream] Add patch for Manila deep dive exercise

This change adds a patch that will be used to practice
debugging in Manila for the Upstream Training in Boston.

Students should pull the patch file down and apply it to
a branch in their local Manila repository.

Change-Id: I3f59a155def3c30739384b68933c7f32e15ec24b

project_exercises_boston/manila-lvm_location_logging.patch

@@ -0,0 +1,34 @@
+diff --git a/manila/share/drivers/lvm.py b/manila/share/drivers/lvm.py
+index 5bc1e41..8093a99 100644
+--- a/manila/share/drivers/lvm.py
++++ b/manila/share/drivers/lvm.py
+@@ -27,8 +27,8 @@ from oslo_log import log
+ from oslo_utils import importutils
+ import six
+ 
+-from manila import exception
+ from manila.i18n import _
++from manila import exception
+ from manila.share import driver
+ from manila.share.drivers import generic
+ from manila.share import utils
+@@ -91,7 +91,7 @@ class LVMMixin(driver.ExecuteMixin):
+         self._try_execute(*cmd, run_as_root=True)
+         device_name = self._get_local_path(share)
+         self._execute('mkfs.%s' % self.configuration.share_volume_fstype,
+-                      device_name, run_as_root=True)
++                      device_name, run_as_root=False)
+ 
+     def _extend_container(self, share, device_name, size):
+         cmd = ['lvextend', '-L', '%sG' % size, '-n', device_name]
+@@ -218,6 +218,10 @@ class LVMShareDriver(LVMMixin, driver.ShareDriver):
+         device_name = self._get_local_path(share)
+         location = self._get_helper(share).create_exports(
+             self.share_server, share['name'])
++
++        LOG.debug("Share location is %(export_location)s",
++                  {"export_location": export_location})
++
+         self._mount_device(share, device_name)
+         return location
+