Comment 1 for bug 1652567

It seems that that "other" does not have read access to mariadb.log:

[root@control01 ~]# ls -lah /var/lib/docker/volumes/kolla_logs/_data/mariadb/
totalt 40K
drwxr-xr-x. 2 polkitd systemd-network 24 18 jan 12.39 .
drwxrwxr-x. 15 root buser 4,0K 18 jan 12.59 ..
-rw-rw----. 1 polkitd systemd-network 34K 19 jan 10.02 mariadb.log

nor dnsmasq.log:

[root@control01 ~]# ls -lah /var/lib/docker/volumes/kolla_logs/_data/neutron/
totalt 4,2M
drwxr-xr-x. 2 polkitd polkitd 4,0K 18 jan 13.15 .
drwxrwxr-x. 15 root buser 4,0K 18 jan 12.59 ..
-rw-r-----. 1 nobody root 8,1K 19 jan 02.00 dnsmasq.log
-rw-r--r--. 1 polkitd polkitd 35K 18 jan 14.08 neutron-dhcp-agent.log
-rw-r--r--. 1 polkitd polkitd 20K 18 jan 14.07 neutron-l3-agent.log
-rw-r--r--. 1 polkitd polkitd 4,5K 18 jan 14.00 neutron-metadata-agent.log
-rw-r--r--. 1 root root 379 18 jan 13.14 neutron-ns-metadata-proxy-a2d8c1cf-c353-4116-b0f4-ca03d93bdec2.log
-rw-r--r--. 1 root root 2,9K 18 jan 14.00 neutron-ns-metadata-proxy-abc006f5-c346-4958-bb26-02b37854d120.log
-rw-r--r--. 1 root root 379 18 jan 13.15 neutron-ns-metadata-proxy-d7508fce-8611-46a0-b473-61f8af101e13.log
-rw-r--r--. 1 polkitd polkitd 53K 18 jan 17.36 neutron-openvswitch-agent.log
-rw-r--r--. 1 polkitd polkitd 3,9M 19 jan 10.09 neutron-server.log