containers should use FQDNs to allow repros

[emisca]

containers should use FQDNs to allow repros:

• a domain must be chosen such as example.com
• TLS/SSL certs should include both short name and fqdn in the SAN field.
• DNS should allow to resolve both short and FQDNs.

[emisca]

it seems that a domain is already set, om_ansible_front:

[root@omserver /]# ping omserver.om_ansible_front
PING omserver.om_ansible_front (192.168.1.100) 56(84) bytes of data.
64 bytes from omserver (192.168.1.100): icmp_seq=1 ttl=64 time=0.042 ms
64 bytes from omserver (192.168.1.100): icmp_seq=2 ttl=64 time=0.040 ms
64 bytes from omserver (192.168.1.100): icmp_seq=3 ttl=64 time=0.038 ms

[root@omserver /]# ping n2
PING n2 (192.168.1.102) 56(84) bytes of data.
64 bytes from n2.om_ansible_front (192.168.1.102): icmp_seq=1 ttl=64 time=0.093 ms
64 bytes from n2.om_ansible_front (192.168.1.102): icmp_seq=2 ttl=64 time=0.065 ms
64 bytes from n2.om_ansible_front (192.168.1.102): icmp_seq=3 ttl=64 time=0.052 ms
64 bytes from n2.om_ansible_front (192.168.1.102): icmp_seq=4 ttl=64 time=0.054 ms