Ceph » rgw

rgw_frontends = "beast"

This leads to the RGW to bind on 0.0.0.0:80 as shown by ss:

State       Recv-Q Send-Q                                                            Local Address:Port                                                                           Peer Address:Port              
LISTEN      0      128                                                                           *:80                                                                                        *:*                   users:(("radosgw",pid=537897,fd=133))

rgw_frontends = "beast endpoint=[::]:80"

This makes RGW listen on both IPv4 and IPv6, but the default should imho be to listen on v4 and v6.

Tested this with Mimic 13.2.5