Zabbix is not working with Python3

[Vu Xuan Tuong]

From the documentation for ast.literal_eval():
Safely evaluate an expression node or a string containing a Python expression. The string or node provided may only consist of the following Python literal structures: strings, numbers, tuples, lists, dicts, booleans, and None.

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/eventlet/greenpool.py", line 88, in _spawn_n_impl
    func(*args, **kwargs)
  File "/opt/stack/tacker/tacker/vnfm/plugin.py", line 455, in create_vnf_wait
    self.add_vnf_to_appmonitor(context, vnf_dict)
  File "/opt/stack/tacker/tacker/vnfm/plugin.py", line 297, in add_vnf_to_appmonitor
    appmonitor = self._vnf_app_monitor.create_app_dict(context, vnf_dict)
  File "/opt/stack/tacker/tacker/vnfm/monitor.py", line 248, in create_app_dict
    return self._create_app_monitoring_dict(dev_attrs, mgmt_ip_address)
  File "/opt/stack/tacker/tacker/vnfm/monitor.py", line 239, in _create_app_monitoring_dict
    temp = ast.literal_eval(mgmt_ip_address)
  File "/usr/lib/python3.6/ast.py", line 85, in literal_eval
    return _convert(node_or_string)
  File "/usr/lib/python3.6/ast.py", line 84, in _convert
    raise ValueError('malformed node or string: ' + repr(node))
ValueError: malformed node or string: b'{"VDU1": "192.168.120.26"}'

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.opendev.org/756048

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/756048
Committed: https://git.openstack.org/cgit/openstack/tacker/commit/?id=b8c642a7703f96c1585cc85b7640fd3d716c6e2a
Submitter: Zuul
Branch: master

commit b8c642a7703f96c1585cc85b7640fd3d716c6e2a
Author: Vu Tuong <email address hidden>
Date: Mon Oct 5 11:33:43 2020 +0000

    Fix python3 utf-8 decode issue and typo while creating app_monitor

    This change corrects the input for ast.literal_eval()
    and also corrects the variable (zapi.URL) called in
    zabbix_api.py and zabbix.py.

    From the Python3 documentation for ast.literal_eval():
    Safely evaluate an expression node or a string containing
    a Python expression. The string or node provided may
    only consist of the following Python literal structures:
    strings, numbers, tuples, lists, dicts, booleans, and None.

    Change-Id: I710feff170cb464371d76ef3ee52392fa818c18d
    Related-Bug: #1898515
    Closes-Bug: #1898526