Obtaining Bucket Lifecycle Configuration

Functions

This operation obtains the bucket lifecycle configuration.

To perform this operation, you must have the GetLifecycleConfiguration permission. By default, only the bucket owner can perform this operation. The bucket owner can grant the permission to other users by configuring the bucket policy or user policy.

Request Syntax

GET /?lifecycle HTTP/1.1 
Host: bucketname.obs.region.example.com
Date: date
Authorization: authorization

Request Parameters

This request contains no message parameters.

Request Headers

This request uses common headers. For details, see Table 3.

Request Elements

This request involves no elements.

Response Syntax

HTTP/1.1 status_code
Date: date
Content-Type: application/xml 
Date: date
Content-Length: length

<?xml version="1.0" encoding="UTF-8" standalone="yes"?> 
<LifecycleConfiguration xmlns="http://obs.region.example.com/doc/2015-06-30/">
    <Rule> 
        <ID>id</ID> 
        <Prefix>prefix</Prefix> 
        <Status>status</Status> 
        <Expiration> 
            <Date>date</Date> 
        </Expiration> 
        <NoncurrentVersionExpiration> 
            <NoncurrentDays>days</NoncurrentDays> 
        </NoncurrentVersionExpiration> 
        <Transition>  
         <Date>date</Date>  
         <StorageClass>WARM</StorageClass>  
        </Transition>  
        <Transition>  
         <Date>date</Date>  
         <StorageClass>COLD</StorageClass>  
        </Transition>  
        <NoncurrentVersionTransition>  
         <NoncurrentDays>30</NoncurrentDays>  
         <StorageClass>WARM</StorageClass>  
        </NoncurrentVersionTransition>  
        <NoncurrentVersionTransition>  
         <NoncurrentDays>60</NoncurrentDays>  
         <StorageClass>COLD</StorageClass>  
        </NoncurrentVersionTransition> 
    </Rule> 
</LifecycleConfiguration>

Response Headers

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

Response Elements

This response contains elements to detail the configuration. Table 1 describes the elements.

**Table 1** Response elements for lifecycle configuration
Element	Description
Date	Specifies that OBS executes lifecycle rules for objects before the specified date. The date must be compliant with the ISO8601 format, and the time must be compliant with the UTC format of 00:00:00. For example, 2018-01-01T00:00:00.000Z indicates that objects whose last modification time is earlier than 2018-01-01T00:00:00.000Z are deleted or transitioned to another storage class. Objects whose last modification time is equal to or later than the specified time are not deleted or transitioned to another storage class. Type: string Ancestor node: Expiration, Transition
Days	Specifies the number of days (since the latest update to the latest object version) after which the lifecycle rule is executed. Type: integer Ancestor node: Expiration, Transition
StorageClass	The storage class to which the object is transitioned. Type: string Value options: WARM, COLD Ancestor node: Transition, NoncurrentVersionTransition
Transition	Transition time and the object storage class after transition (valid only for the latest object version). Type: XML Children node: Date or Days Ancestor node: Rule
Expiration	Container for the object expiration rule. Type: XML Children node: Date or Days Ancestor node: Rule
ID	Unique identifier of a rule. The value can contain a maximum of 255 characters. Type: string Ancestor node: Rule
LifecycleConfiguration	Container for lifecycle rules. You can add multiple rules. The total size of the rules cannot exceed 20 KB. Type: XML Children node: Rule Ancestor node: none
NoncurrentDays	Number of days when the specified rule takes effect after the object becomes a historical version. Type: integer Ancestor node: NoncurrentVersionExpiration, NoncurrentVersionTransition
NoncurrentVersionTransition	Transition time of historical object versions and the object storage class after transition. Type: XML Children node: NoncurrentDays, StorageClass Ancestor node: Rule
NoncurrentVersionExpiration	Container for the expiration time of objects' historical versions. If versioning is enabled or suspended for a bucket, you can set NoncurrentVersionExpiration to delete objects whose life cycles have expired. Type: XML Children node: NoncurrentDays Ancestor node: Rule
Prefix	Object name prefix identifying one or more objects to which the rule applies. Type: string Ancestor node: Rule
Rule	Container for a specific lifecycle rule. Type: container Ancestor node: LifecycleConfiguration
Status	Indicates whether the rule is enabled. Type: string Ancestor node: Rule Value options: Enabled, Disabled

Error Responses

Table 2 describes possible special errors in the request.

**Table 2** Special error
Error Code	Description	HTTP Status Code
NoSuchLifecycleConfiguration	The bucket lifecycle configuration does not exist.	404 Not Found

For other errors, see Table 2.

Sample Request

GET /?lifecycle HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.example.com
Accept: */*
Date: WED, 01 Jul 2015 03:06:56 GMT
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:/Nof9FCNANfzIXDS0NDp1IfDu8I=

Sample Response

HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: BF260000016436BA5684FF5A10370EDB
x-obs-id-2: 32AAAQAAEAABAAAQAAEAABAAAQAAEAABCSEMKZSIeboCA1eAukgYOOAd7oX3ZONn
Content-Type: application/xml
Date: WED, 01 Jul 2015 03:06:56 GMT
Content-Length: 919

<?xml version="1.0" encoding="utf-8"?>
<LifecycleConfiguration> 
  <Rule> 
    <ID>delete-2-days</ID> 
    <Status>Enabled</Status>  
    <Expiration> 
      <Days>2</Days> 
    </Expiration>  
    <NoncurrentVersionExpiration> 
      <NoncurrentDays>5</NoncurrentDays> 
    </NoncurrentVersionExpiration>
    <Transition> 
      <Days>30</Days>  
      <StorageClass>WARM</StorageClass> 
    </Transition>  
    <Transition> 
      <Days>60</Days>  
      <StorageClass>COLD</StorageClass> 
    </Transition>  
    <NoncurrentVersionTransition> 
      <NoncurrentDays>30</NoncurrentDays>  
      <StorageClass>WARM</StorageClass> 
    </NoncurrentVersionTransition>  
    <NoncurrentVersionTransition> 
      <NoncurrentDays>60</NoncurrentDays>  
      <StorageClass>COLD</StorageClass> 
    </NoncurrentVersionTransition> 
  </Rule>
</LifecycleConfiguration>