OBS Storage Mounting

Function

This API is used to mount an OBS parallel file system to a specified file directory of a running notebook instance.

This API applies to the following scenario: When you need to directly operate files in OBS in a notebook instance, you can use this API to mount the OBS parallel file system to a specified directory of the instance. Then the file system can be read and written. Before using this API, ensure that you have logged in to the system and have the permission to access the target notebook instance and OBS parallel file system. In addition, the notebook instance must be running. After this API is called, the system mounts the specified OBS parallel file system to the notebook instance. You can read and write objects in the OBS parallel file system in the container as a file system. If you do not have the permission to access the specified notebook instance or the notebook instance is not running, the API will return an error message.

Constraints

No constraints

Debugging

You can debug this API through automatic authentication in API Explorer or use the SDK sample code generated by API Explorer.

URI

POST /v1/{project_id}/notebooks/{instance_id}/storage

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
instance_id	Yes	String	Definition: Notebook instance ID. The ID is in the format of a Universally Unique Identifier (UUID). For details about how to obtain the ID, see Querying Notebook Instances. Constraints: N/A Range: N/A Default Value: N/A
project_id	Yes	String	Definition: Project ID. For details, see Obtaining a Project ID and Name. Constraints: N/A Range: N/A Default Value: N/A

Request Parameters

**Table 2** Request body parameters
Parameter	Mandatory	Type	Description
category	No	String	Definition: Storage type for dynamic mounting. Constraints: N/A Range: OBS: Object Storage Service Default Value: OBS
mount_path	No	String	Definition: Path mounted to the notebook instance. Constraints: N/A Range: The value can contain a maximum of 256 characters and must be in the /data/ subdirectory of the notebook instance. Default Value: /home/ma-user/work/
uri	No	String	Definition: OBS object path, for example, obs://modelarts/notebook/. Constraints: Valid object path in the OBS parallel file system. Range: Up to 256 characters Default Value: N/A

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
category	String	Definition: Storage type. The value can be OBS. Range: N/A
id	String	Definition: ID of the dynamically mounted instance. Range: N/A
mount_path	String	Definition: Path mounted to the notebook instance. Range: N/A
status	String	Definition: Status of dynamically mounted OBS storage. Range: MOUNTING: being mounted MOUNT_FAILED: mounting failed MOUNTED: mounted UNMOUNTING: being unmounted UNMOUNT_FAILED: unmounting failed UNMOUNTED: unmounted
uri	String	Definition: OBS object path. Range: N/A

Status code: 201

Created

Example Requests

The following is an example of how to dynamically mount an OBS parallel file system to the /data/wang/ directory in the instance.

{
  "category" : "OBS",
  "mount_path" : "/data/wang/",
  "uri" : "obs://authoring-test/wang/"
}

Example Responses

Status code: 200

{
  "id" : "91dd2d3f-2d92-475f-a375-04636af26cc9",
  "category" : "OBSFS",
  "mount_path" : "/data/wang/",
  "uri" : "obs://authoring-test/wang/",
  "status" : "MOUNTING"
}