v2 modify vnf fails when using Mgmtdriver modify_information_start script

[Ying Yao]

When I use modify_information_start in Mgmtdriver script, the v2 modify vnf will be FAILED_TEMP.

I checked source code, and I found in _modify_vnfinfo(), grant_req was set to None in self.vnflcm_driver.process(context, lcmocc, inst, None, None, vnfd).
Please confirm it.

The follows is the error log.

2022-02-25 17:01:31.120 ERROR tacker.sol_refactored.conductor.conductor_v2 [req-60f27995-fd40-4324-a4c7-5931d359a1d0 nfv_user nfv] PROCESSING MODIFY_INFO failed: AttributeError: 'NoneType' object has no attribute 'to_dict'
2022-02-25 17:01:31.120 1784092 ERROR tacker.sol_refactored.conductor.conductor_v2 Traceback (most recent call last):
2022-02-25 17:01:31.120 1784092 ERROR tacker.sol_refactored.conductor.conductor_v2 File "/opt/stack/tacker/tacker/sol_refactored/conductor/conductor_v2.py", line 260, in _modify_vnfinfo
2022-02-25 17:01:31.120 1784092 ERROR tacker.sol_refactored.conductor.conductor_v2 self.vnflcm_driver.process(context, lcmocc, inst, None, None, vnfd)
2022-02-25 17:01:31.120 1784092 ERROR tacker.sol_refactored.conductor.conductor_v2 File "/opt/stack/tacker/tacker/sol_refactored/conductor/vnflcm_driver_v2.py", line 217, in process
2022-02-25 17:01:31.120 1784092 ERROR tacker.sol_refactored.conductor.conductor_v2 self._exec_mgmt_driver_script(operation,
2022-02-25 17:01:31.120 1784092 ERROR tacker.sol_refactored.conductor.conductor_v2 File "/opt/stack/tacker/tacker/sol_refactored/conductor/vnflcm_driver_v2.py", line 105, in _exec_mgmt_driver_script
2022-02-25 17:01:31.120 1784092 ERROR tacker.sol_refactored.conductor.conductor_v2 'grant_request': grant_req.to_dict(),
2022-02-25 17:01:31.120 1784092 ERROR tacker.sol_refactored.conductor.conductor_v2 AttributeError: 'NoneType' object has no attribute 'to_dict'
2022-02-25 17:01:31.120 1784092 ERROR tacker.sol_refactored.conductor.conductor_v2

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/tacker/+/829156
Committed: https://opendev.org/openstack/tacker/commit/3635aa14762852872c9e7283e87f574923460b98
Submitter: "Zuul (22348)"
Branch: master

commit 3635aa14762852872c9e7283e87f574923460b98
Author: Yi Feng <email address hidden>
Date: Tue Feb 15 15:09:56 2022 +0900

    FT of scale/modify v2 APIs

    This patch add scale/modify functional tests of v2 APIs to the
    following test cases:
    * Test basic lcms for v2 api Max pattern.
    * Test basic lcms for v2 api Min pattern.
    * Test rollback update VNF for v2 api.
    * Test update and scale out's before/after for v2 api.

    Implements: blueprint support-nfv-solv3-scale-vnf
    Implements: blueprint support-nfv-solv3-modify-vnf
    Closes-bug: #1962564
    Change-Id: I0826f1c580a56cec860d59ae0eeb197e8d30f344

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tacker 7.0.0.0rc1 release candidate.