在 openstack 中部署 cinder 服务，发现服务无法正常启动
查看日志发现报错信息如下:
ERROR oslo_service.service AccessRefused: (0, 0): (403) ACCESS_REFUSED - Login was refused using authentication mechanism AMQPLAIN
发现问题在于 rabbitmq
查看 rabbitmq 用户，之前创建的 openstack 用户消失了
尝试重新创建 openstack 用户
rabbitmqctl add_user openstack RABBIT_PASS rabbitmqctl set_permissions openstack ".*" ".*" ".*"
[root@controller ~]# rabbitmqctl list_users
Listing users
openstack []
guest [administrator]
重新启动 cinder 相关服务
systemctl restart openstack-cinder-api.service openstack-cinder-scheduler.service
systemctl restart openstack-cinder-volume.service target.service
