Ceph » rgw

A regular bucket notification:

{
  "Records": [
    {
      "eventVersion": "2.2",
      "eventSource": "ceph:s3",
      "awsRegion": "zg1",
      "eventTime": "2023-05-01T16:17:34.844165Z",
      "eventName": "ObjectCreated:Put",
      "userIdentity": {
        "principalId": "zone.user" 
      },
      "requestParameters": {
        "sourceIPAddress": "" 
      },
      "responseElements": {
        "x-amz-request-id": "7afba4d2-3e1a-4ba6-a3a4-803ac89e5ba5.4158.11183591382816850133",
        "x-amz-id-2": "103e-zg1-1-zg1" 
      },
      "s3": {
        "s3SchemaVersion": "1.0",
        "configurationId": "notif1",
        "bucket": {
          "name": "fish",
          "ownerIdentity": {
            "principalId": "zone.user" 
          },
          "arn": "arn:aws:s3:zg1::fish",
          "id": "7afba4d2-3e1a-4ba6-a3a4-803ac89e5ba5.4160.1" 
        },
        "object": {
          "key": "myfile",
          "size": 52428800,
          "eTag": "64265add918ea07b8a4c1863bd44715d",
          "versionId": "4OBdctjOTuVsM4M5.ySPUpdPcUmLCS1",
          "sequencer": "1EE64F6405208836",
          "metadata": [
            {
              "key": "x-amz-content-sha256",
              "val": "a347f7cb986faa748b474f809d21b6d7369897fa39c5a63ba50db2c701ad2121" 
            },
            {
              "key": "x-amz-date",
              "val": "20230501T161734Z" 
            },
            {
              "key": "x-amz-meta-foo",
              "val": "bar" 
            },
            {
              "key": "x-amz-meta-ka",
              "val": "boom" 
            },
            {
              "key": "x-amz-tagging",
              "val": "Key1=Value1" 
            }
          ],
          "tags": [
            {
              "key": "Key1",
              "val": "Value1" 
            }
          ]
        }
      },
      "eventId": "1682957854.914890.64265add918ea07b8a4c1863bd44715d",
      "opaqueData": "" 
    }
  ]
}

The metadata section contains the keys x-amz-content-sha256, x-amz-date, and x-amz-tagging which are not supposed to be there.

Please refer to https://github.com/ceph/ceph/pull/51295#discussion_r1181716662.

@yuvalif
it is actually a bug that these attributes are in the regular notification. the definition of metadata attributes are ones that start with x-amz-meta...
so, the sync notification is correct, but the regular notification added an attributes that should not be there (there are usually added by the client code and not the user)