生成ceph-radosgw服务对应的用户和key：
ceph-authtool /etc/ceph/ceph.client.radosgw.keyring -n client.rgw.node1 --gen-key
ceph-authtool /etc/ceph/ceph.client.radosgw.keyring -n client.rgw.node2 --gen-key
ceph-authtool /etc/ceph/ceph.client.radosgw.keyring -n client.rgw.node3 --gen-key
添加用户访问权限：
ceph-authtool -n client.rgw.node1 --cap osd 'allow rwx' --cap mon 'allow rwx' /etc/ceph/ceph.client.radosgw.keyring ceph-authtool -n client.rgw.node2 --cap osd 'allow rwx' --cap mon 'allow rwx' /etc/ceph/ceph.client.radosgw.keyring ceph-authtool -n client.rgw.node3 --cap osd 'allow rwx' --cap mon 'allow rwx' /etc/ceph/ceph.client.radosgw.keyring
将keyring导入集群中：
ceph -k /etc/ceph/ceph.client.admin.keyring auth add client.rgw.node1 -i /etc/ceph/ceph.client.radosgw.keyring ceph -k /etc/ceph/ceph.client.admin.keyring auth add client.rgw.node2 -i /etc/ceph/ceph.client.radosgw.keyring ceph -k /etc/ceph/ceph.client.admin.keyring auth add client.rgw.node3 -i /etc/ceph/ceph.client.radosgw.keyring
参考资料：