开启数据库代理
功能介绍
开启数据库代理,只支持ELB模式。
调用方法
请参见如何调用API。
URI
POST /v3/{project_id}/instances/{instance_id}/proxy
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
project_id |
是 |
String |
租户在某一Region下的project ID。 获取方法请参见获取项目ID。 |
instance_id |
是 |
String |
实例ID,严格匹配UUID规则。 |
请求参数
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
X-Auth-Token |
是 |
String |
用户Token。 通过调用IAM服务获取用户Token接口获取。 请求响应成功后在响应消息头中包含的“X-Subject-Token”的值即为Token值。 |
X-Language |
否 |
String |
请求语言类型。默认en-us。 取值范围:
|
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
flavor_ref |
是 |
String |
数据库代理规格码,获取方法请参见查询数据库代理规格信息返回的spec_code字段。 |
node_num |
是 |
Integer |
数据库代理节点数,取值整数2-16。 |
proxy_name |
否 |
String |
数据库代理名称。用于表示实例的名称,同一租户下,同类型的实例名可重名。 取值范围:最小为4个字符,最大为64个字符且不超过64个字节(注意:一个中文字符占用3个字节),必须以字母或中文开头,区分大小写,可以包含字母、数字、中划线、下划线或中文,不能包含其他特殊字符。 |
proxy_mode |
否 |
String |
数据库代理类型。默认类型为readwrite。 |
route_mode |
否 |
Integer |
数据库代理路由模式,默认为0,权重负载模式。 取值范围:
|
nodes_read_weight |
否 |
Array of NodesWeight objects |
数据库节点的读权重设置。 在proxy_mode为readonly时,只能为只读节点选择权重。 |
subnet_id |
否 |
String |
数据库VPC下的子网ID。 |
new_node_auto_add_status |
否 |
String |
是否开启新增节点自动加入该Proxy。如果需要设置是否开启新增节点自动加入该Proxy,请联系客服人员添加白名单,加入白名单后,方可输入该字段。加入白名单后,默认值为OFF。 取值范围:
|
new_node_weight |
否 |
Integer |
新增节点的读权重,在new_node_auto_add_status参数为ON时为必选字段:
|
响应参数
状态码: 201
参数 |
参数类型 |
描述 |
---|---|---|
job_id |
String |
任务ID。 |
状态码: 400
参数 |
参数类型 |
描述 |
---|---|---|
error_code |
String |
错误码。 |
error_msg |
String |
错误消息。 |
状态码: 500
参数 |
参数类型 |
描述 |
---|---|---|
error_code |
String |
错误码。 |
error_msg |
String |
错误消息。 |
请求示例
开启数据库代理,规格2U8GB,代理模式只读模式。
POST https://{endpoint}/v3/0483b6b16e954cb88930a360d2c4e663/instances/43e4feaab48f11e89039fa163ebaa7e4br01/proxy { "flavor_ref" : "gaussdb.proxy.large.x86.2", "node_num" : 2, "proxy_name" : "gaussdb-proxy", "proxy_mode" : "readonly", "route_mode" : 0, "nodes_read_weight" : [ { "id" : "45021bf73a244312a3f2af95092feeecno07", "weight" : 50 }, { "id" : "d78a65690cea4af5ad14585e110ff89bno07", "weight" : 400 } ], "subnet_id" : "6991d82d-9166-4aff-a1fa-d2a8748b7084" }
响应示例
状态码: 201
Success.
{ "job_id" : "04efe8e2-9255-44ae-a98b-d87cae411890" }
SDK代码示例
SDK代码示例如下。
Java
开启数据库代理,规格2U8GB,代理模式只读模式。
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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.gaussdb.v3.region.GaussDBRegion; import com.huaweicloud.sdk.gaussdb.v3.*; import com.huaweicloud.sdk.gaussdb.v3.model.*; import java.util.List; import java.util.ArrayList; public class CreateGaussMySqlProxySolution { 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"); String projectId = "{project_id}"; ICredential auth = new BasicCredentials() .withProjectId(projectId) .withAk(ak) .withSk(sk); GaussDBClient client = GaussDBClient.newBuilder() .withCredential(auth) .withRegion(GaussDBRegion.valueOf("<YOUR REGION>")) .build(); CreateGaussMySqlProxyRequest request = new CreateGaussMySqlProxyRequest(); request.withInstanceId("{instance_id}"); OpenMysqlProxyRequestBody body = new OpenMysqlProxyRequestBody(); List<NodesWeight> listbodyNodesReadWeight = new ArrayList<>(); listbodyNodesReadWeight.add( new NodesWeight() .withId("45021bf73a244312a3f2af95092feeecno07") .withWeight(50) ); listbodyNodesReadWeight.add( new NodesWeight() .withId("d78a65690cea4af5ad14585e110ff89bno07") .withWeight(400) ); body.withSubnetId("6991d82d-9166-4aff-a1fa-d2a8748b7084"); body.withNodesReadWeight(listbodyNodesReadWeight); body.withRouteMode(0); body.withProxyMode(OpenMysqlProxyRequestBody.ProxyModeEnum.fromValue("readonly")); body.withProxyName("gaussdb-proxy"); body.withNodeNum(2); body.withFlavorRef("gaussdb.proxy.large.x86.2"); request.withBody(body); try { CreateGaussMySqlProxyResponse response = client.createGaussMySqlProxy(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()); } } } |
Python
开启数据库代理,规格2U8GB,代理模式只读模式。
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# coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkgaussdb.v3.region.gaussdb_region import GaussDBRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkgaussdb.v3 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.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}" credentials = BasicCredentials(ak, sk, projectId) client = GaussDBClient.new_builder() \ .with_credentials(credentials) \ .with_region(GaussDBRegion.value_of("<YOUR REGION>")) \ .build() try: request = CreateGaussMySqlProxyRequest() request.instance_id = "{instance_id}" listNodesReadWeightbody = [ NodesWeight( id="45021bf73a244312a3f2af95092feeecno07", weight=50 ), NodesWeight( id="d78a65690cea4af5ad14585e110ff89bno07", weight=400 ) ] request.body = OpenMysqlProxyRequestBody( subnet_id="6991d82d-9166-4aff-a1fa-d2a8748b7084", nodes_read_weight=listNodesReadWeightbody, route_mode=0, proxy_mode="readonly", proxy_name="gaussdb-proxy", node_num=2, flavor_ref="gaussdb.proxy.large.x86.2" ) response = client.create_gauss_my_sql_proxy(request) print(response) except exceptions.ClientRequestException as e: print(e.status_code) print(e.request_id) print(e.error_code) print(e.error_msg) |
Go
开启数据库代理,规格2U8GB,代理模式只读模式。
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package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" gaussdb "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3/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") projectId := "{project_id}" auth := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). WithProjectId(projectId). Build() client := gaussdb.NewGaussDBClient( gaussdb.GaussDBClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.CreateGaussMySqlProxyRequest{} request.InstanceId = "{instance_id}" idNodesReadWeight:= "45021bf73a244312a3f2af95092feeecno07" weightNodesReadWeight:= int32(50) idNodesReadWeight1:= "d78a65690cea4af5ad14585e110ff89bno07" weightNodesReadWeight1:= int32(400) var listNodesReadWeightbody = []model.NodesWeight{ { Id: &idNodesReadWeight, Weight: &weightNodesReadWeight, }, { Id: &idNodesReadWeight1, Weight: &weightNodesReadWeight1, }, } subnetIdOpenMysqlProxyRequestBody:= "6991d82d-9166-4aff-a1fa-d2a8748b7084" routeModeOpenMysqlProxyRequestBody:= int32(0) proxyModeOpenMysqlProxyRequestBody:= model.GetOpenMysqlProxyRequestBodyProxyModeEnum().READONLY proxyNameOpenMysqlProxyRequestBody:= "gaussdb-proxy" request.Body = &model.OpenMysqlProxyRequestBody{ SubnetId: &subnetIdOpenMysqlProxyRequestBody, NodesReadWeight: &listNodesReadWeightbody, RouteMode: &routeModeOpenMysqlProxyRequestBody, ProxyMode: &proxyModeOpenMysqlProxyRequestBody, ProxyName: &proxyNameOpenMysqlProxyRequestBody, NodeNum: int32(2), FlavorRef: "gaussdb.proxy.large.x86.2", } response, err := client.CreateGaussMySqlProxy(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } |
更多
更多编程语言的SDK代码示例,请参见API Explorer的代码示例页签,可生成自动对应的SDK代码示例。
状态码
状态码 |
描述 |
---|---|
201 |
Success. |
400 |
Client error. |
500 |
Server error. |
错误码
请参见错误码。