Rolling Back a Snapshot to an EVS Disk
Function
This API is used to roll back a snapshot to an EVS disk. Enterprise project authorization is supported.
Constraints
-
A snapshot can be rolled back only to its source disk. Rollback to another disk is not possible.
-
You can roll back a disk from a snapshot only when the disk is in the available or error_rollbacking state.
-
Snapshots whose names started with the autobk_snapshot_ prefix are automatically created by the system when backups are created. Such snapshots cannot be used to roll back data.
Calling Method
For details, see Calling APIs.
URI
POST /v2/{project_id}/cloudsnapshots/{snapshot_id}/rollback
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
project_id |
Yes |
String |
The project ID. For details about how to obtain the project ID, see Obtaining a Project ID. |
snapshot_id |
Yes |
String |
The snapshot ID. |
Request Parameters
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
X-Auth-Token |
Yes |
String |
The user token. It can be obtained by calling the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is the user token. |
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
rollback |
Yes |
RollbackSnapshotOption object |
The snapshot rollback information. |
Response Parameters
Status code: 202
Parameter |
Type |
Description |
---|---|---|
rollback |
RollbackInfo object |
The snapshot rollback information. |
Parameter |
Type |
Description |
---|---|---|
volume_id |
String |
The UUID of the disk to be rolled back. |
Status code: 400
Parameter |
Type |
Description |
---|---|---|
error |
Error object |
The error message returned if an error occurs. For details, seeParameters in the error field. |
Parameter |
Type |
Description |
---|---|---|
code |
String |
The error code returned if an error occurs. For the error codes and their meanings, see Error Codes. |
message |
String |
The error message returned if an error occurs. |
Example Requests
Rolling back a snapshot to an EVS disk (The target disk name is test-001 and UUID is 5aa119a8-d25b-45a7-8d1b-88e127885635.)
POST https://{endpoint}/v2/{project_id}/cloudsnapshots/{snapshot_id}/rollback { "rollback" : { "name" : "test-001", "volume_id" : "5aa119a8-d25b-45a7-8d1b-88e127885635" } }
Example Responses
Status code: 202
Accepted
{ "rollback" : { "volume_id" : "5aa119a8-d25b-45a7-8d1b-88e127885635" } }
Status code: 400
Bad Request
{ "error" : { "message" : "XXXX", "code" : "XXX" } }
SDK Sample Code
The SDK sample code is as follows.
Rolling back a snapshot to an EVS disk (The target disk name is test-001 and UUID is 5aa119a8-d25b-45a7-8d1b-88e127885635.)
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package com.huaweicloud.sdk.test; import com.huaweicloud.sdk.core.auth.ICredential; import com.huaweicloud.sdk.core.auth.BasicCredentials; import com.huaweicloud.sdk.core.exception.ConnectionException; import com.huaweicloud.sdk.core.exception.RequestTimeoutException; import com.huaweicloud.sdk.core.exception.ServiceResponseException; import com.huaweicloud.sdk.evs.v2.region.EvsRegion; import com.huaweicloud.sdk.evs.v2.*; import com.huaweicloud.sdk.evs.v2.model.*; public class RollbackSnapshotSolution { public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment String ak = System.getenv("CLOUD_SDK_AK"); String sk = System.getenv("CLOUD_SDK_SK"); ICredential auth = new BasicCredentials() .withAk(ak) .withSk(sk); EvsClient client = EvsClient.newBuilder() .withCredential(auth) .withRegion(EvsRegion.valueOf("<YOUR REGION>")) .build(); RollbackSnapshotRequest request = new RollbackSnapshotRequest(); RollbackSnapshotRequestBody body = new RollbackSnapshotRequestBody(); RollbackSnapshotOption rollbackbody = new RollbackSnapshotOption(); rollbackbody.withName("test-001") .withVolumeId("5aa119a8-d25b-45a7-8d1b-88e127885635"); body.withRollback(rollbackbody); request.withBody(body); try { RollbackSnapshotResponse response = client.rollbackSnapshot(request); System.out.println(response.toString()); } catch (ConnectionException e) { e.printStackTrace(); } catch (RequestTimeoutException e) { e.printStackTrace(); } catch (ServiceResponseException e) { e.printStackTrace(); System.out.println(e.getHttpStatusCode()); System.out.println(e.getRequestId()); System.out.println(e.getErrorCode()); System.out.println(e.getErrorMsg()); } } } |
Rolling back a snapshot to an EVS disk (The target disk name is test-001 and UUID is 5aa119a8-d25b-45a7-8d1b-88e127885635.)
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# coding: utf-8 from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkevs.v2.region.evs_region import EvsRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkevs.v2 import * if __name__ == "__main__": # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak, sk) \ client = EvsClient.new_builder() \ .with_credentials(credentials) \ .with_region(EvsRegion.value_of("<YOUR REGION>")) \ .build() try: request = RollbackSnapshotRequest() rollbackbody = RollbackSnapshotOption( name="test-001", volume_id="5aa119a8-d25b-45a7-8d1b-88e127885635" ) request.body = RollbackSnapshotRequestBody( rollback=rollbackbody ) response = client.rollback_snapshot(request) print(response) except exceptions.ClientRequestException as e: print(e.status_code) print(e.request_id) print(e.error_code) print(e.error_msg) |
Rolling back a snapshot to an EVS disk (The target disk name is test-001 and UUID is 5aa119a8-d25b-45a7-8d1b-88e127885635.)
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package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" evs "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/evs/v2" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/evs/v2/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/evs/v2/region" ) func main() { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak := os.Getenv("CLOUD_SDK_AK") sk := os.Getenv("CLOUD_SDK_SK") auth := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). Build() client := evs.NewEvsClient( evs.EvsClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.RollbackSnapshotRequest{} nameRollback:= "test-001" rollbackbody := &model.RollbackSnapshotOption{ Name: &nameRollback, VolumeId: "5aa119a8-d25b-45a7-8d1b-88e127885635", } request.Body = &model.RollbackSnapshotRequestBody{ Rollback: rollbackbody, } response, err := client.RollbackSnapshot(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } |
For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.
Status Codes
Status Code |
Description |
---|---|
202 |
Accepted |
400 |
Bad Request |
Error Codes
See Error Codes.
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