OP log

Controller Node
=>	/var/log/nova
nova-api.log        nova-consoleauth.log  nova-novncproxy.log     nova-placement-api.log-20190624.gz
nova-conductor.log  nova-manage.log       nova-placement-api.log  nova-scheduler.log

=> /var/log/glance
api.log  registry.log

=> /var/log/keystone
keystone.log

=> /var/log/neutron
dhcp-agent.log  linuxbridge-agent.log  metadata-agent.log  server.log

=> /var/log/httpd
access_log           error_log           keystone_access.log           keystone.log
access_log-20190623  error_log-20190623  keystone_access.log-20190623

=> /var/log/audit
audit.log  audit.log.1  audit.log.2  audit.log.3  audit.log.4

=> /var/log/rabbitmq
rabbit@controller01.log  rabbit@controller01.log-20190623  rabbit@controller01-sasl.log


All node
syslog