Creating a Bucket_Operations on Buckets_APIs_API Reference

Functions

This operation is used to create a bucket with a specified name.

By default, a user can have a maximum of 100 buckets.
The name of a deleted bucket can be reused for a bucket or a parallel file system at least 30 minutes after the deletion.
You can enable WORM when you create a bucket. After WORM is enabled, you can configure retention policies for objects you upload to the bucket. For more information, see Configuring a Default WORM Policy for a Bucket. When you create a bucket with WORM enabled, OBS automatically enables versioning for the bucket, which cannot be suspended. When you create a parallel file system, you cannot enable WORM for it.

A bucket name must be unique in OBS. If a user creates a bucket with the same name as that of an existing bucket under the same account and in the same region, a 200 code (indicating success) is returned. In scenarios other than the preceding one, the request for creating a bucket with the same name as that of an existing one will receive the 409 code (indicating that a namesake bucket already exists). To set an access control policy for the bucket to be created, you can add the x-obs-acl parameter to request headers.

Storage Class

You can create buckets with different storage classes. The x-obs-storage-class header in a bucket creation request specifies the bucket's storage class. If you do not specify a storage class when you upload an object to the bucket, the object inherits the storage class of the bucket. The storage class options are as follows: STANDARD (Standard), WARM (Infrequent Access), COLD (Archive). If the x-obs-storage-class header is not in the request, a Standard bucket will be created.

If the storage class of an object is not specified when it is uploaded to a bucket (see Uploading an Object - PUT), the object will be stored in the default storage class of the bucket.

OBS Standard features low access latency and high throughput. It is most suitable for storing frequently accessed (multiple times per month) hot files. Potential application scenarios include big data, mobile applications, trending videos, and social media images.
OBS Infrequent Access is most suitable for storing semi-frequently accessed (less than 12 times a year) data requiring quick response. Potential application scenarios include file synchronization or sharing and enterprise-level backup. It provides the same durability, access latency, and throughput as the Standard but at a lower price. The main drawback, however, is that it has lower availability than the Standard.
OBS Archive is most suitable for archiving rarely-accessed (averagely once a year) data. Potential application scenarios include data archiving and long-term data retention for backup. It provides secure, durable, and inexpensive storage, which can replace tape libraries. However, the low cost comes at the cost of minutes to hours needed to restore data from the Archive storage class.

Request Syntax

    
         PUT / HTTP/1.1 
Host: bucketname.obs.region.myhuaweicloud.eu
Content-Length: length
Date: date
Authorization: authorization
<CreateBucketConfiguration xmlns="http://obs.region.myhuaweicloud.eu/doc/2015-06-30/">  
    <Location>location</Location> 
</CreateBucketConfiguration>

Request Parameters

This request contains no parameters.

Request Headers

The operation message header is the same as that of a common request. For details, see Table 3. However, this request can contain additional headers. The following table describes the additional headers for this request.

**Table 1** Additional request headers
Header	Type	Mandatory (Yes/No)	Description
x-obs-acl	String	No	Definition: When creating a bucket, you can use this parameter to set a pre-defined ACL. Range: private: A bucket or an object can be accessed only by its owner. public-read: If this permission is granted on a bucket, anyone can read the object list, multipart uploads, and bucket metadata. public-read-write: If this permission is granted on a bucket, anyone can obtain the object list, multipart tasks, and metadata, and can upload or delete objects, initiate multipart upload tasks, upload parts, assemble parts, copy parts, and cancel multipart upload tasks. public-read-delivered: If this permission is set for a bucket, everyone can obtain the object list, multipart uploads, and bucket metadata in the bucket, and obtain the content and metadata of the objects in the bucket. public-read-write-delivered: If this permission is set for a bucket, everyone can obtain the object list in the bucket, multipart uploads in the bucket, and metadata of the bucket; upload and delete objects; initiate multipart uploads; upload, assemble, and copy parts; cancel multipart uploads; and obtain content and metadata of objects in the bucket. bucket-owner-full-control: If this permission is granted on an object, only the bucket and object owners have the full control over the object. By default, if you upload an object to a bucket of any other user, the bucket owner does not have the permissions on your object. After you grant this policy to the bucket owner, the bucket owner can have full control over your object. For example, if user A uploads object x to user B's bucket, user B does not have the control over object x. If user A sets the bucket-owner-full-control policy for object x, user B then has the control over object x. Default value: private
x-obs-storage-class	String	No	Definition: When creating a bucket, you can add this header to set the default storage class for the bucket. Range: STANDARD (Standard storage) WARM (Infrequent Access storage) COLD (Archive storage) Default value: STANDARD
x-obs-grant-read	String	No	Definition: Grants the read permission to all users in a specified domain. It allows you to list objects in a bucket, list multipart tasks in a bucket, list multi-version objects in a bucket, and obtain bucket metadata. Example: x-obs-grant-read:id=tenant-ID Constraints: None Range: id=tenant-ID. For details, see Obtaining Account, IAM User, Project, User Group, Region, and Agency Information. Default value: None
x-obs-grant-write	String	No	Definition: Grants the WRITE permission to all users in a specified domain to create, delete, and overwrite all objects in a bucket; and initiate multipart uploads, upload parts, copy parts, assemble parts, and cancel multipart uploads. Example: x-obs-grant-write:id=tenant-ID Constraints: None Range: id=tenant-ID. For details, see Obtaining Account, IAM User, Project, User Group, Region, and Agency Information. Default value: None
x-obs-grant-read-acp	String	No	Definition: Grant the READ_ACP permission to all users in a specified domain to allow them to read the bucket ACL. Example: x-obs-grant-read-acp:id=Account ID Constraints: None Range: id=tenant-ID. For details, see Obtaining Account, IAM User, Project, User Group, Region, and Agency Information. Default value: None
x-obs-grant-write-acp	String	No	Definition: Grants the WRITE_ACP permission to all users in a specified domain to allow them to modify the bucket ACL. Example: x-obs-grant-write-acp:id=Account ID Constraints: None Range: id=tenant-ID. For details, see Obtaining Account, IAM User, Project, User Group, Region, and Agency Information. Default value: None
x-obs-grant-full-control	String	No	Definition: Grants the FULL_CONTROL permission to all users in a specified domain. Example: x-obs-grant-full-control:id=tenant-ID Constraints: None Range: id=tenant-ID. For details, see Obtaining Account, IAM User, Project, User Group, Region, and Agency Information. Default value: None
x-obs-grant-read-delivered	String	No	Definition: Grants the READ permission to all users in a specified domain. By default, the read permission is granted on all objects in the bucket. Example: x-obs-grant-read-delivered:id=tenant-ID Constraints: None Range: id=tenant-ID. For details, see Obtaining Account, IAM User, Project, User Group, Region, and Agency Information. Default value: None
x-obs-grant-full-control-delivered	String	No	Definition: Grants the FULL_CONTROL permission to all users in a specified domain. By default, the FULL_CONTROL permission is granted on all objects in the bucket. Example: x-obs-grant-full-control-delivered:id=tenant-ID Constraints: None Range: id=tenant-ID. For details, see Obtaining Account, IAM User, Project, User Group, Region, and Agency Information. Default value: None
x-obs-fs-file-interface	String	No	Definition: This header can be carried when you want to create a parallel file system. Example: x-obs-fs-file-interface:Enabled Range: Enabled Default value: If the header is specified, the value must be Enabled. There is no default value.
x-obs-bucket-object-lock-enabled	String	No	Definition: When creating a bucket, you can use this header to enable WORM for the bucket. Example: x-obs-bucket-object-lock-enabled:true Constraints: Only object buckets are supported. Range: true: WORM is enabled. Default value: If the header is set to true, the object lock policy of the bucket is enabled. If the header is not set to true or is not carried, the object lock policy is disabled.
x-obs-server-side-encryption-bucket-key-enabled	String	No	Definition: Whether to enable the SSE-KMS bucket key feature. Constraints: If you set this header to true, you must also specify x-obs-server-side-encryption-kms-key-id to specify the key ID. Range: true: The bucket key is enabled. false: The bucket key is disabled. Default value: false

Request Elements

This request can use additional elements. For details about additional elements, see Table 2.

**Table 2** Additional request elements
Element	Type	Mandatory (Yes/No)	Description
Location	String	No	Definition: Specifies the region where a bucket will be created. Constraints: If the endpoint used is obs.myhuaweicloud.eu, this parameter is not required. If any other endpoint is used, this parameter is required. Range: For details about OBS regions and endpoints, see Endpoints. Default value: If obs.myhuaweicloud.eu is used as the endpoint and no region is specified, eu-west-101 (the EU-Dublin region) is used by default.

Response Syntax

    
         HTTP/1.1 status_code
Location: location
Date: date
Content-Length: length

Response Headers

The response to the request uses common headers. For details, see Table 1.

Response Elements

This response contains no elements.

Error Responses

No special error responses are returned. For details about error responses, see Table 2.

Sample Request: Creating a Bucket

    
         PUT / HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.myhuaweicloud.eu
Accept: */*
Date: WED, 01 Jul 2015 02:25:05 GMT
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:75/Y4Ng1izvzc1nTGxpMXTE6ynw=
Content-Length: 157

<CreateBucketConfiguration xmlns="http://obs.region.myhuaweicloud.eu/doc/2015-06-30/"> 
    <Location>region</Location>
</CreateBucketConfiguration>

Sample Response: Creating a Bucket

    
         HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: BF260000016435CE298386946AE4C482
Location: /examplebucket
x-obs-id-2: 32AAAQAAEAABSAAgAAEAABAAAQAAEAABCT9W2tcvLmMJ+plfdopaD62S0npbaRUz
Date: WED, 01 Jul 2015 02:25:06 GMT
Content-Length: 0

Sample Request: Creating a Bucket (with the ACL and Storage Class Specified)

    
         PUT / HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.myhuaweicloud.eu
Accept: */*
Date: WED, 01 Jul 2015 02:25:05 GMT
x-obs-acl:public-read
x-obs-storage-class:STANDARD
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:75/Y4Ng1izvzc1nTGxpMXTE6ynw=
Content-Length: 157

<CreateBucketConfiguration xmlns="http://obs.region.myhuaweicloud.eu/doc/2015-06-30/">
    <Location>region</Location> 
</CreateBucketConfiguration>

Sample Response: Creating a Bucket (with the ACL and Storage Class Specified)

    
         HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: BF260000016435CE298386946AE4C482
Location: /examplebucket
x-obs-id-2: 32AAAQAAEAABSAAgAAEAABAAAQAAEAABCT9W2tcvLmMJ+plfdopaD62S0npbaRUz
Date: WED, 01 Jul 2015 02:25:06 GMT
Content-Length: 0

Sample Request: Creating a Parallel File System

    
         PUT / HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.myhuaweicloud.eu
Accept: */*
Date: WED, 01 Jul 2015 02:25:05 GMT
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:75/Y4Ng1izvzc1nTGxpMXTE6ynw=
Content-Length: 157
x-obs-fs-file-interface: Enabled

<CreateBucketConfiguration xmlns="http://obs.region.myhuaweicloud.eu/doc/2015-06-30/">
<Location>region</Location> 
</CreateBucketConfiguration>

Sample Response: Creating a Parallel File System

    
         HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: BF260000016435CE298386946AE4C482
Location: /examplebucket
x-obs-id-2: 32AAAQAAEAABSAAgAAEAABAAAQAAEAABCT9W2tcvLmMJ+plfdopaD62S0npbaRUz
Date: WED, 01 Jul 2015 02:25:06 GMT
Content-Length: 0

Sample Request: Creating a Bucket with WORM Enabled

PUT / HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.myhuaweicloud.eu
Accept: */*
Date: WED, 01 Jul 2015 02:25:05 GMT
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:75/Y4Ng1izvzc1nTGxpMXTE6ynw=
x-obs-bucket-object-lock-enabled:true
Content-Length: 0

Sample Response: Creating a Bucket with WORM Enabled

HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: 00000184C11AC7A6809F881341842C02
x-reserved-indicator: Unauthorized
Location: /examplebucket
x-obs-id-2: 32AAAQAAEAABSAAgAAEAABAAAQAAEAABCT9W2tcvLmMJ+plfdopaD62S0npbaRUz
Date: WED, 01 Jul 2015 02:25:06 GMT
Content-Length: 0

Sample Request: Creating a Bucket with Explicitly Configured Access Permissions

PUT / HTTP/1.1
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:iqSPeUBl66PwXDApxjRKk6hlcN4=
x-obs-grant-read: id=783fc6vz2cf2442c096evxxxxxxxxxxxx
x-obs-grant-write: id=3u3fc6vz2cf24mc830fhsxxxxxxxxxxxx
x-obs-grant-read-acp: id=902su2vz2cf2vire.239caxxxxxxxxxxxx
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.myhuaweicloud.com
Date: WED, 01 Jul 2015 02:37:22 GMT
Content-Type: application/xml
 
<CreateBucketConfiguration  xmlns="http://obs.region.myhuaweicloud.com/doc/2015-06-30/">
    <Location>region</Location>
</CreateBucketConfiguration>

Sample Response: Creating a Bucket with Explicitly Configured Access Permissions

x-obs-id-2: 32AAAQAAEAABAAAQAAEAABAAAQAAEAABCTeau73DlKTh4wPYzoZf5w3KacolerP4
x-obs-request-id: 0000018A2A22B72447CF01A99F32E2B0
Server: OBS
Content-Length: 0
Date: WED, 01 Jul 2015 02:37:22 GMT
Location: /examplebucket

Creating a Bucket