Creating a Bucket

Functions

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

Note

  • 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, but you cannot enable WORM for an existing bucket. In a bucket with WORM enabled, you can further configure retention policies for objects you upload to this bucket. For more information, see the WORM sections. Once enabled, WORM cannot be disabled for a bucket. When you create a bucket with WORM enabled, OBS automatically enables versioning for the bucket and the versioning cannot be suspended for that bucket. 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 (Warm), COLD (Cold). 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 Objects - 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 Warm storage class is suitable for storing data that is infrequently accessed (less than 12 times a year) yet has quick response requirements. Potential application scenarios include file synchronization or sharing and enterprise backup. It provides the same durability, access latency, and throughput as the Standard storage class but at a lower price. However, the Warm storage class has lower availability than the Standard one.

  • OBS Cold storage class is applicable to archiving rarely-accessed (averagely once a year) data. The application scenarios include data archiving and long-term data retention for backup. The Cold storage class is secure, durable, and inexpensive, which can replace tape libraries. To keep cost low, it may take hours to restore data from the Cold storage class.

Request Syntax

PUT / HTTP/1.1
Host: bucketname.obs.region.example.com
Content-Length: length
Date: date
Authorization: authorization

<CreateBucketConfiguration xmlns="http://obs.region.example.com/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

Description

Mandatory

x-obs-acl

When creating a bucket, you can add this header to set the permission control policy for the bucket. The predefined common policies are as follows: private, public-read, public-read-write, public-read-delivered, and public-read-write-delivered.

Type: string

No

x-obs-storage-class

When creating a bucket, you can add this header to specify the default storage class for the bucket. The storage class options are as follows: STANDARD (Standard), WARM (Warm), and COLD (Cold). If this header is not in the request, a Standard bucket will be created.

Type: string

No

x-obs-grant-read

This header grants the read permission to all users under an account. 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.

Type: string

Example: x-obs-grant-read:id=Tenant ID

No

x-obs-grant-write

This header grants the write permission to all users under an account. Therefore, the users can create, delete, and overwrite all objects in a bucket, and can initialize parts, upload parts, copy parts, merge parts, and cancel multipart upload tasks.

Type: string

Example: x-obs-grant-write:id=Tenant ID

No

x-obs-grant-read-acp

This header grants the ACL read permission to all users under an account. Therefore, the users can read the bucket ACL information.

Type: string

Example: x-obs-grant-read-acp:id=Account ID

No

x-obs-grant-write-acp

This header grants the ACL write permission to all users under an account. Therefore, the users can modify the ACL of the bucket.

Type: string

Example: x-obs-grant-write-acp:id=Account ID

No

x-obs-grant-full-control

This header grants the full control permission to all users under an account.

Type: string

Example: x-obs-grant-full-control:id=Account ID

No

x-obs-grant-read-delivered

This header grants the read permission to all users under an account. By default, the read permission is applied to all objects in the bucket.

Type: string

Example: x-obs-grant-read-delivered:id=Account ID

No

x-obs-grant-full-control-delivered

This header grants the full control permission to all users under an account. By default, the FULL_CONTROL permission is applied to all objects in the bucket.

Type: string

Example: x-obs-grant-full-control-delivered:id=Account ID

No

x-obs-fs-file-interface

This header can be carried when you create a bucket as a parallel file system.

Type: string

Example: x-obs-fs-file-interface:Enabled

No

x-obs-bucket-object-lock-enabled

When creating a bucket, you can use this header to enable WORM for the bucket.

Type: string

Example: x-obs-bucket-object-lock-enabled:true

No

Request Elements

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

Table 2 Additional request elements

Element

Description

Mandatory

Location

Specifies the region where a bucket will be created.

  • When creating a bucket using the endpoint of the default region, note the following:

    • If Location is not specified, the bucket is created in the default region.

    • If Location is specified to other region, the bucket is created in the specified region.

  • When creating a bucket using the endpoint of a non-default region, Location must be specified to the region corresponding to the endpoint.

For details about OBS regions and endpoints, see Regions and Endpoints.

Type: string

No

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.example.com
Accept: */*
Date: WED, 01 Jul 2015 02:25:05 GMT
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:75/Y4Ng1izvzc1nTGxpMXTE6ynw=
Content-Length: 157

<CreateBucketConfiguration xmlns="http://obs.region.example.com/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.example.com
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.example.com/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.example.com
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.example.com/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.example.com
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