为提供更加兼容s3的对象存储，即 bucket-name.s3.example.com
增加DNS记录
*.s3 CNAME s3.example.com
设置rgw
[rook@rook-ceph-tools-f579cb58c-jh96v tmp]$ radosgw-admin zonegroup get > zonegroup.json
[rook@rook-ceph-tools-f579cb58c-jh96v tmp]$ vi zonegroup.json
...
"hostnames": ["rook-ceph-rgw-my-store.rook-ceph.svc", "s3.example.com"],
"hostnames_s3website": ["..."],
...
[rook@rook-ceph-tools-f579cb58c-jh96v tmp]$ radosgw-admin zonegroup set --infile zonegroup.json
[rook@rook-ceph-tools-f579cb58c-jh96v tmp]$ radosgw-admin period update --commit