Configuring a Storage Quota (SDK for Python)
Function
A quota limits the maximum capacity allowed in a bucket. By default, there is no limit on the storage capacity of the entire OBS system or a single bucket, and any number of objects can be stored. You can set a storage quota to control the total size of objects that can be uploaded to the bucket. After the storage quota has been reached, object upload will fail.
A quota limit does not apply to the objects uploaded before the quota is configured. If the specified quota is already smaller than the total size of existing objects in the bucket, the existing objects in the bucket will not be deleted, but no more object can be uploaded to the bucket later. In this case, to upload new objects, you must delete some existing objects to make the used space below the quota limit.
Restrictions
- A bucket storage quota must be a non-negative integer expressed in bytes. The maximum value is 263 – 1.
- OBS does not provide an API for deleting bucket storage quotas. You can set the bucket storage quota to 0 to cancel the limit.
- To configure a storage quota for a bucket, you must be the bucket owner or have the required permission (obs:bucket:PutBucketQuota in IAM or PutBucketQuota in a bucket policy). For details, see Introduction to OBS Access Control, IAM Custom Policies, and Creating a Custom Bucket Policy.
- The mapping between OBS regions and endpoints must comply with what is listed in Regions and Endpoints.
Method
ObsClient.setBucketQuota(bucketName, quota)
Request Parameters
Parameter |
Type |
Mandatory (Yes/No) |
Description |
---|---|---|---|
bucketName |
str |
Yes |
Explanation: Bucket name Restrictions:
Default value: None |
quota |
int |
Yes |
Explanation: Bucket quota Value range: An integer greater than or equal to 0, in bytes Default value: 0, indicating that there is no limit on the bucket quota. |
Responses
Type |
Description |
---|---|
Explanation: SDK common results |
Parameter |
Type |
Description |
---|---|---|
status |
int |
Explanation: HTTP status code Value range: A status code is a group of digits ranging from 2xx (indicating successes) to 4xx or 5xx (indicating errors). It indicates the status of a response. For more information, see Status Code. Default value: None |
reason |
str |
Explanation: Reason description. Default value: None |
errorCode |
str |
Explanation: Error code returned by the OBS server. If the value of status is less than 300, this parameter is left blank. Default value: None |
errorMessage |
str |
Explanation: Error message returned by the OBS server. If the value of status is less than 300, this parameter is left blank. Default value: None |
requestId |
str |
Explanation: Request ID returned by the OBS server Default value: None |
indicator |
str |
Explanation: Error indicator returned by the OBS server. Default value: None |
hostId |
str |
Explanation: Requested server ID. If the value of status is less than 300, this parameter is left blank. Default value: None |
resource |
str |
Explanation: Error source (a bucket or an object). If the value of status is less than 300, this parameter is left blank. Default value: None |
header |
list |
Explanation: Response header list, composed of tuples. Each tuple consists of two elements, respectively corresponding to the key and value of a response header. Default value: None |
body |
object |
Explanation: Result content returned after the operation is successful. If the value of status is larger than 300, this parameter is left blank. The value varies with the API being called. For details, see Bucket-Related APIs (SDK for Python) and Object-Related APIs (SDK for Python). Default value: None |
Code Examples
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from obs import ObsClient import os import traceback # Obtain an AK and SK pair using environment variables or import the AK and SK pair in other ways. Using hard coding may result in leakage. # Obtain an AK and SK pair on the management console. For details, see https://support.huaweicloud.com/intl/en-us/usermanual-ca/ca_01_0003.html. ak = os.getenv("AccessKeyID") sk = os.getenv("SecretAccessKey") # (Optional) If you use a temporary AK and SK pair and a security token to access OBS, obtain them from environment variables. security_token = os.getenv("SecurityToken") # Set server to the endpoint corresponding to the bucket. Here uses CN-Hong Kong as an example. Replace it with the one in use. server = "https://obs.ap-southeast-1.myhuaweicloud.com" # Create an obsClient instance. # If you use a temporary AK and SK pair and a security token to access OBS, you must specify security_token when creating an instance. obsClient = ObsClient(access_key_id=ak, secret_access_key=sk, server=server) try: bucketName = "examplebucket" # Specify a 1 GB quota (measured in bytes) for the bucket. quota = 1024 * 1024 * 1024 # Configure a quota for the bucket. resp = obsClient.setBucketQuota(bucketName, quota) # If status code 2xx is returned, the API is called successfully. Otherwise, the API call fails. if resp.status < 300: print('Set Bucket Quota Succeeded') print('requestId:', resp.requestId) else: print('Set Bucket Quota Failed') print('requestId:', resp.requestId) print('errorCode:', resp.errorCode) print('errorMessage:', resp.errorMessage) except: print('Set Bucket Quota Failed') print(traceback.format_exc()) |
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