Add asynchronous error info into messages when share extend error

The database table messages is used to record various asynchronous error
messages, extend share is an asynchronously invoked procedure, when the
driver layer fails to execute extend share, we should record this
asynchronous error into database. This commit modify this behavior, and
now this asynchronows error is recorded in the database.

Closes-Bug:#1850264
Change-Id: I06a9bf24ab3d4aa5f4f5446d344bf55d71803e47

manila/message/message_field.py

@@ -31,13 +31,15 @@ class Action(object):
     UPDATE = ('005', _('update'))
     REVERT_TO_SNAPSHOT = ('006', _('revert to snapshot'))
     DELETE = ('007', _('delete'))
+    EXTEND = ('008', _('extend'))
     ALL = (ALLOCATE_HOST,
            CREATE,
            DELETE_ACCESS_RULES,
            PROMOTE,
            UPDATE,
            REVERT_TO_SNAPSHOT,
-           DELETE)
+           DELETE,
+           EXTEND)
 
 
 class Detail(object):
@@ -72,6 +74,12 @@ class Detail(object):
     FILTER_JSON = ('012', FILTER_MSG % 'Json')
     FILTER_RETRY = ('013', FILTER_MSG % 'Retry')
     FILTER_REPLICATION = ('014', FILTER_MSG % 'ShareReplication')
+    DRIVER_FAILED_EXTEND = (
+        '015',
+        _("Share Driver failed to extend share, The share status has been "
+          "set to extending_error. This action cannot be re-attempted until "
+          "the status has been rectified. Contact your administrator to "
+          "determine the cause of this failure."))
 
     ALL = (UNKNOWN_ERROR,
            NO_VALID_HOST,
@@ -86,7 +94,8 @@ class Detail(object):
            FILTER_IGNORE,
            FILTER_JSON,
            FILTER_RETRY,
-           FILTER_REPLICATION)
+           FILTER_REPLICATION,
+           DRIVER_FAILED_EXTEND)
 
     # Exception and detail mappings
     EXCEPTION_DETAIL_MAPPINGS = {

manila/share/manager.py

@@ -3823,7 +3823,13 @@ class ShareManager(manager.SchedulerDependentManager):
                 share_instance, new_size, share_server=share_server)
         except Exception as e:
             LOG.exception("Extend share failed.", resource=share)
-
+            self.message_api.create(
+                context,
+                message_field.Action.EXTEND,
+                project_id,
+                resource_type=message_field.Resource.SHARE,
+                resource_id=share_id,
+                detail=message_field.Detail.DRIVER_FAILED_EXTEND)
             try:
                 self.db.share_update(
                     context, share['id'],

releasenotes/notes/bug-1850264-add-async-error-when-share-extend-error-a0c458204b395994.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    A new user message has been added in case of share extensions failing
+    asynchronously.