Comment 4 for bug 1693712

root@ctrl0:~# la -lan /var/lib/docker/volumes/kolla_logs/_data/neutron/
total 247112
drwxr-sr-x 2 42435 42435 4096 Apr 2 06:36 .
drwxrwsr-x 30 42425 42400 4096 Mar 30 01:39 ..
-rw-r--r-- 1 65534 42435 0 Apr 2 06:36 dnsmasq.log
-rw-r----- 1 65534 42435 41545508 Apr 2 06:36 dnsmasq.log.1

update: after logrotate mode is changed to correct one 644.