Failed to build and run instance: TypeError: Argument must be bytes or unicode,
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager [req-32f11d3c-7437-47c8-a3b0-c739c561ebbe fadb888e3a2944749bec573661254f02 51c784a90f3c4b16baf606b5bc6ac917- default default] Failed to build and run instance: TypeError: Argument must be bytes or unicode, got 'NoneType'
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager Traceback (most recent call last):
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager File "/usr/lib/python3.6/site-packages/nova/compute/mana
ger.py", line 2385, in _build_and_run_instance
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager accel_info=accel_info)
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager File "/usr/lib/python3.6/site-packages/nova/virt/libvirt
/driver.py", line 3683, in spawn
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager mdevs=mdevs, accel_info=accel_info)
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager File "/usr/lib/python3.6/site-packages/nova/virt/libvirt
/driver.py", line 6412, in _get_guest_xml
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager xml = conf.to_xml()
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager File "/usr/lib/python3.6/site-packages/nova/virt/libvirt
/config.py", line 79, in to_xml
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager root = self.format_dom()
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager File "/usr/lib/python3.6/site-packages/nova/virt/libvirt
/config.py", line 2813, in format_dom
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager self._format_devices(root)
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager File "/usr/lib/python3.6/site-packages/nova/virt/libvirt
/config.py", line 2767, in _format_devices
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager devices.append(dev.format_dom())
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager File "/usr/lib/python3.6/site-packages/nova/virt/libvirt
/config.py", line 1121, in format_dom
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager uuid=self.auth_secret_uuid))
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager File "src/lxml/etree.pyx", line 2998, in lxml.etree.Elem
ent
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager File "src/lxml/apihelpers.pxi", line 131, in lxml.etree.
_makeElement
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager File "src/lxml/apihelpers.pxi", line 119, in lxml.etree.
_makeElement
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager File "src/lxml/apihelpers.pxi", line 297, in lxml.etree.
_initNodeAttributes
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager File "src/lxml/apihelpers.pxi", line 311, in lxml.etree.
_addAttributeToNode
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager File "src/lxml/apihelpers.pxi", line 1437, in lxml.etree
._utf8
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager TypeError: Argument must be bytes or unicode, got 'NoneTyp
e'
2021-09-04 17:34:50.311 2909 ERROR nova.compute.manager
这个是因为缺少配置参数，nova.conf在libvirt选项中需要指定rbd_secret_uuid，如下
......
rbd_secret_uuid = xxxxxxxxxxxxxxxx
配置完成后重启nova-compute服务即可
如果cinder，volume节点也存在这样的问题，可以在cinder的配置文件中加入，重启cinder-volume和cinder-api服务。
同理glance
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