ceph/doc/radosgw/s3/bucketops.rst

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===================
Bucket Operations
===================
PUT Bucket
----------
Creates a new bucket. To create a bucket, you must have a user ID and a valid AWS Access Key ID to authenticate requests. You may not
create buckets as an anonymous user.
.. note:: We do not support request entities for ``PUT /{bucket}`` in this release.
Constraints
~~~~~~~~~~~
In general, bucket names should follow domain name constraints.
- Bucket names must be unique.
- Bucket names must begin and end with a lowercase letter.
- Bucket names may contain a dash (-).
Syntax
~~~~~~
::
PUT /{bucket} HTTP/1.1
Host: cname.domain.com
x-amz-acl: public-read-write
Authorization: AWS {access-key}:{hash-of-header-and-secret}
Parameters
~~~~~~~~~~
+---------------+----------------------+-----------------------------------------------------------------------------+------------+
| Name | Description | Valid Values | Required |
+===============+======================+=============================================================================+============+
| ``x-amz-acl`` | Canned ACLs. | ``private``, ``public-read``, ``public-read-write``, ``authenticated-read`` | No |
+---------------+----------------------+-----------------------------------------------------------------------------+------------+
HTTP Response
~~~~~~~~~~~~~
If the bucket name is unique, within constraints and unused, the operation will succeed.
If a bucket with the same name already exists and the user is the bucket owner, the operation will succeed.
If the bucket name is already in use, the operation will fail.
+---------------+-----------------------+----------------------------------------------------------+
| HTTP Status | Status Code | Description |
+===============+=======================+==========================================================+
| ``409`` | BucketAlreadyExists | Bucket already exists under different user's ownership. |
+---------------+-----------------------+----------------------------------------------------------+
DELETE Bucket
-------------
Deletes a bucket. You can reuse bucket names following a successful bucket removal.
Syntax
~~~~~~
::
DELETE /{bucket} HTTP/1.1
Host: cname.domain.com
Authorization: AWS {access-key}:{hash-of-header-and-secret}
HTTP Response
~~~~~~~~~~~~~
+---------------+---------------+------------------+
| HTTP Status | Status Code | Description |
+===============+===============+==================+
| ``204`` | No Content | Bucket removed. |
+---------------+---------------+------------------+
GET Bucket
----------
Returns a list of bucket objects.
Syntax
~~~~~~
::
GET /{bucket}?max-keys=25 HTTP/1.1
Host: cname.domain.com
Parameters
~~~~~~~~~~
+-----------------+-----------+-----------------------------------------------------------------------+
| Name | Type | Description |
+=================+===========+=======================================================================+
| ``prefix`` | String | Only returns objects that contain the specified prefix. |
+-----------------+-----------+-----------------------------------------------------------------------+
| ``delimiter`` | String | The delimiter between the prefix and the rest of the object name. |
+-----------------+-----------+-----------------------------------------------------------------------+
| ``marker`` | String | A beginning index for the list of objects returned. |
+-----------------+-----------+-----------------------------------------------------------------------+
| ``max-keys`` | Integer | The maximum number of keys to return. Default is 1000. |
+-----------------+-----------+-----------------------------------------------------------------------+
HTTP Response
~~~~~~~~~~~~~
+---------------+---------------+--------------------+
| HTTP Status | Status Code | Description |
+===============+===============+====================+
| ``200`` | OK | Buckets retrieved |
+---------------+---------------+--------------------+
Bucket Response Entities
~~~~~~~~~~~~~~~~~~~~~~~~
``GET /{bucket}`` returns a container for buckets with the following fields.
+------------------------+-----------+----------------------------------------------------------------------------------+
| Name | Type | Description |
+========================+===========+==================================================================================+
| ``ListBucketResult`` | Entity | The container for the list of objects. |
+------------------------+-----------+----------------------------------------------------------------------------------+
| ``Name`` | String | The name of the bucket whose contents will be returned. |
+------------------------+-----------+----------------------------------------------------------------------------------+
| ``Prefix`` | String | A prefix for the object keys. |
+------------------------+-----------+----------------------------------------------------------------------------------+
| ``Marker`` | String | A beginning index for the list of objects returned. |
+------------------------+-----------+----------------------------------------------------------------------------------+
| ``MaxKeys`` | Integer | The maximum number of keys returned. |
+------------------------+-----------+----------------------------------------------------------------------------------+
| ``Delimiter`` | String | If set, objects with the same prefix will appear in the ``CommonPrefixes`` list. |
+------------------------+-----------+----------------------------------------------------------------------------------+
| ``IsTruncated`` | Boolean | If ``true``, only a subset of the bucket's contents were returned. |
+------------------------+-----------+----------------------------------------------------------------------------------+
| ``CommonPrefixes`` | Container | If multiple objects contain the same prefix, they will appear in this list. |
+------------------------+-----------+----------------------------------------------------------------------------------+
Object Response Entities
~~~~~~~~~~~~~~~~~~~~~~~~
The ``ListBucketResult`` contains objects, where each object is within a ``Contents`` container.
+------------------------+-----------+------------------------------------------+
| Name | Type | Description |
+========================+===========+==========================================+
| ``Contents`` | Object | A container for the object. |
+------------------------+-----------+------------------------------------------+
| ``Key`` | String | The object's key. |
+------------------------+-----------+------------------------------------------+
| ``LastModified`` | Date | The object's last-modified date/time. |
+------------------------+-----------+------------------------------------------+
| ``ETag`` | String | An MD-5 hash of the object. (entity tag) |
+------------------------+-----------+------------------------------------------+
| ``Size`` | Integer | The object's size. |
+------------------------+-----------+------------------------------------------+
| ``StorageClass`` | String | Should always return ``STANDARD``. |
+------------------------+-----------+------------------------------------------+
Get Bucket Location
-------------------
Retrieves the bucket's region. The user needs to be the bucket owner
to call this. A bucket can be constrained to a region by providing
``LocationConstraint`` during a PUT request.
Syntax
~~~~~~
Add the ``location`` subresource to bucket resource as shown below
::
GET /{bucket}?location HTTP/1.1
Host: cname.domain.com
Authorization: AWS {access-key}:{hash-of-header-and-secret}
Response Entities
~~~~~~~~~~~~~~~~~~~~~~~~
+------------------------+-----------+------------------------------------------+
| Name | Type | Description |
+========================+===========+==========================================+
| ``LocationConstraint`` | String | The region where bucket resides, empty |
| | | string for defult region |
+------------------------+-----------+------------------------------------------+
Get Bucket ACL
--------------
Retrieves the bucket access control list. The user needs to be the bucket
owner or to have been granted ``READ_ACP`` permission on the bucket.
Syntax
~~~~~~
Add the ``acl`` subresource to the bucket request as shown below.
::
GET /{bucket}?acl HTTP/1.1
Host: cname.domain.com
Authorization: AWS {access-key}:{hash-of-header-and-secret}
Response Entities
~~~~~~~~~~~~~~~~~
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| Name | Type | Description |
+===========================+=============+==============================================================================================+
| ``AccessControlPolicy`` | Container | A container for the response. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| ``AccessControlList`` | Container | A container for the ACL information. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| ``Owner`` | Container | A container for the bucket owner's ``ID`` and ``DisplayName``. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| ``ID`` | String | The bucket owner's ID. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| ``DisplayName`` | String | The bucket owner's display name. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| ``Grant`` | Container | A container for ``Grantee`` and ``Permission``. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| ``Grantee`` | Container | A container for the ``DisplayName`` and ``ID`` of the user receiving a grant of permission. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| ``Permission`` | String | The permission given to the ``Grantee`` bucket. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
PUT Bucket ACL
--------------
Sets an access control to an existing bucket. The user needs to be the bucket
owner or to have been granted ``WRITE_ACP`` permission on the bucket.
Syntax
~~~~~~
Add the ``acl`` subresource to the bucket request as shown below.
::
PUT /{bucket}?acl HTTP/1.1
Request Entities
~~~~~~~~~~~~~~~~
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| Name | Type | Description |
+===========================+=============+==============================================================================================+
| ``AccessControlPolicy`` | Container | A container for the request. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| ``AccessControlList`` | Container | A container for the ACL information. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| ``Owner`` | Container | A container for the bucket owner's ``ID`` and ``DisplayName``. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| ``ID`` | String | The bucket owner's ID. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| ``DisplayName`` | String | The bucket owner's display name. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| ``Grant`` | Container | A container for ``Grantee`` and ``Permission``. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| ``Grantee`` | Container | A container for the ``DisplayName`` and ``ID`` of the user receiving a grant of permission. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
| ``Permission`` | String | The permission given to the ``Grantee`` bucket. |
+---------------------------+-------------+----------------------------------------------------------------------------------------------+
List Bucket Multipart Uploads
-----------------------------
``GET /?uploads`` returns a list of the current in-progress multipart uploads--i.e., the application initiates a multipart upload, but
the service hasn't completed all the uploads yet.
Syntax
~~~~~~
::
GET /{bucket}?uploads HTTP/1.1
Parameters
~~~~~~~~~~
You may specify parameters for ``GET /{bucket}?uploads``, but none of them are required.
+------------------------+-----------+--------------------------------------------------------------------------------------+
| Name | Type | Description |
+========================+===========+======================================================================================+
| ``prefix`` | String | Returns in-progress uploads whose keys contains the specified prefix. |
+------------------------+-----------+--------------------------------------------------------------------------------------+
| ``delimiter`` | String | The delimiter between the prefix and the rest of the object name. |
+------------------------+-----------+--------------------------------------------------------------------------------------+
| ``key-marker`` | String | The beginning marker for the list of uploads. |
+------------------------+-----------+--------------------------------------------------------------------------------------+
| ``max-keys`` | Integer | The maximum number of in-progress uploads. The default is 1000. |
+------------------------+-----------+--------------------------------------------------------------------------------------+
| ``max-uploads`` | Integer | The maximum number of multipart uploads. The range from 1-1000. The default is 1000. |
+------------------------+-----------+--------------------------------------------------------------------------------------+
| ``upload-id-marker`` | String | Ignored if ``key-marker`` isn't specified. Specifies the ``ID`` of first |
| | | upload to list in lexicographical order at or following the ``ID``. |
+------------------------+-----------+--------------------------------------------------------------------------------------+
Response Entities
~~~~~~~~~~~~~~~~~
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| Name | Type | Description |
+=========================================+=============+==========================================================================================================+
| ``ListMultipartUploadsResult`` | Container | A container for the results. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``ListMultipartUploadsResult.Prefix`` | String | The prefix specified by the ``prefix`` request parameter (if any). |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``Bucket`` | String | The bucket that will receive the bucket contents. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``KeyMarker`` | String | The key marker specified by the ``key-marker`` request parameter (if any). |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``UploadIdMarker`` | String | The marker specified by the ``upload-id-marker`` request parameter (if any). |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``NextKeyMarker`` | String | The key marker to use in a subsequent request if ``IsTruncated`` is ``true``. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``NextUploadIdMarker`` | String | The upload ID marker to use in a subsequent request if ``IsTruncated`` is ``true``. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``MaxUploads`` | Integer | The max uploads specified by the ``max-uploads`` request parameter. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``Delimiter`` | String | If set, objects with the same prefix will appear in the ``CommonPrefixes`` list. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``IsTruncated`` | Boolean | If ``true``, only a subset of the bucket's upload contents were returned. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``Upload`` | Container | A container for ``Key``, ``UploadId``, ``InitiatorOwner``, ``StorageClass``, and ``Initiated`` elements. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``Key`` | String | The key of the object once the multipart upload is complete. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``UploadId`` | String | The ``ID`` that identifies the multipart upload. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``Initiator`` | Container | Contains the ``ID`` and ``DisplayName`` of the user who initiated the upload. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``DisplayName`` | String | The initiator's display name. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``ID`` | String | The initiator's ID. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``Owner`` | Container | A container for the ``ID`` and ``DisplayName`` of the user who owns the uploaded object. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``StorageClass`` | String | The method used to store the resulting object. ``STANDARD`` or ``REDUCED_REDUNDANCY`` |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``Initiated`` | Date | The date and time the user initiated the upload. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``CommonPrefixes`` | Container | If multiple objects contain the same prefix, they will appear in this list. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+
| ``CommonPrefixes.Prefix`` | String | The substring of the key after the prefix as defined by the ``prefix`` request parameter. |
+-----------------------------------------+-------------+----------------------------------------------------------------------------------------------------------+