brouberol@cephosd1001:~$ sudo radosgw-admin user create --uid=webrequest-page-view-next --display-name="webrequest-page-view-next"
{
    "user_id": "webrequest-page-view-next",
    "display_name": "webrequest-page-view-next",
    "email": "",
    "suspended": 0,
    "max_buckets": 1000,
    "subusers": [],
    "keys": [
        {
            "user": "webrequest-page-view-next",
            "access_key": "[REDACTED]",
            "secret_key": "[REDACTED]"
        }
    ],
    "swift_keys": [],
    "caps": [],
    "op_mask": "read, write, delete",
    "default_placement": "",
    "default_storage_class": "",
    "placement_tags": [],
    "bucket_quota": {
        "enabled": false,
        "check_on_raw": false,
        "max_size": -1,
        "max_size_kb": 0,
        "max_objects": -1
    },
    "user_quota": {
        "enabled": false,
        "check_on_raw": false,
        "max_size": -1,
        "max_size_kb": 0,
        "max_objects": -1
    },
    "temp_url_keys": [],
    "type": "rgw",
    "mfa_ids": []
}

brouberol@stat1008:~$ s3cmd --access_key=$access_key --secret_key=$secret_key --host=rgw.eqiad.dpe.anycast.wmnet --region=dpe --host-bucket=no mb s3://webrequest-page-view-next.dse-k8s-eqiad
Bucket 's3://webrequest-page-view-next.dse-k8s-eqiad/' created