Configuring a Cluster Load Balancer Listener
Function
CSS can interconnect with ELB. This API automatically creates listeners, backend server groups, and health check tasks for Elasticsearch or OpenSearch clusters, and interconnects the dedicated load balancers.
Calling Method
For details, see Calling APIs.
Authorization Information
Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.
- If you are using role/policy-based authorization, see Permissions Policies and Supported Actions for details on the required permissions.
- If you are using identity policy-based authorization, the following identity policy-based permissions are required.
URI
POST /v1.0/{project_id}/clusters/{cluster_id}/es-listeners
| Parameter | Mandatory | Type | Description |
|---|---|---|---|
| project_id | Yes | String | Definition: Project ID. For details about how to obtain the project ID and name, see Obtaining the Project ID and Name. Constraints: N/A Value range: Project ID of the account. Default value: N/A |
| cluster_id | Yes | String | Definition: ID of the cluster that you want to rename. For details about how to obtain the cluster ID, see Obtaining the Cluster ID. Constraints: N/A Value range: Cluster ID. Default value: N/A |
Request Parameters
| Parameter | Mandatory | Type | Description |
|---|---|---|---|
| protocol | Yes | String | Definition: Protocol type. Constraints: N/A Value range: Default value: N/A |
| protocol_port | Yes | Integer | Definition: Specifies the port used by the listener. Constraints: The port cannot be the same as that of another load balancer listener. Value range: 0-65535 Default value: N/A |
| server_cert_id | No | String | Definition: ID of the server certificate used by the listener Constraints: This parameter is mandatory when protocol is set to HTTPS. Value range: N/A Default value: N/A |
| ca_cert_id | No | String | Definition: ID of the CA certificate used by the listener. Constraints: This parameter is mandatory when protocol is set to HTTPS and bidirectional authentication is used. Value range: N/A Default value: N/A |
| type | No | String | Definition Configuration type. Constraints N/A Range searchTool: Configures listeners for Elasticsearch or OpenSearch. Default Value searchTool |
Response Parameters
Status code: 200
| Parameter | Type | Description |
|---|---|---|
| elb_id | String | Definition: Load balancer ID. Value range: N/A. |
Example Requests
Configure ELB listeners for a cluster.
POST https://{Endpoint}/v1.0/{project_id}/clusters/4f3deec3-efa8-4598-bf91-560aad1377a3/es-listeners
{
"protocol" : "HTTPS",
"protocol_port" : 9200,
"server_cert_id" : "1b74ae4afad741e6bc9497429d3d0838",
"ca_cert_id" : "2a7b050f598e4ea8a61cffbe2bdb312f"
} Example Responses
Status code: 200
Request succeeded.
{
"elb_id" : "56a83547-a55a-407a-8245-7f9b3a0606c0"
} SDK Sample Code
The SDK sample code is as follows.
Java
Configure ELB listeners for a cluster.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | 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.css.v1.region.CssRegion; import com.huaweicloud.sdk.css.v1.*; import com.huaweicloud.sdk.css.v1.model.*; public class CreateElbListenerSolution { 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); CssClient client = CssClient.newBuilder() .withCredential(auth) .withRegion(CssRegion.valueOf("<YOUR REGION>")) .build(); CreateElbListenerRequest request = new CreateElbListenerRequest(); request.withClusterId("{cluster_id}"); CreateEsListenerRequestBody body = new CreateEsListenerRequestBody(); body.withCaCertId("2a7b050f598e4ea8a61cffbe2bdb312f"); body.withServerCertId("1b74ae4afad741e6bc9497429d3d0838"); body.withProtocolPort(9200); body.withProtocol("HTTPS"); request.withBody(body); try { CreateElbListenerResponse response = client.createElbListener(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
Configure ELB listeners for a cluster.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | # coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkcss.v1.region.css_region import CssRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkcss.v1 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 = CssClient.new_builder() \ .with_credentials(credentials) \ .with_region(CssRegion.value_of("<YOUR REGION>")) \ .build() try: request = CreateElbListenerRequest() request.cluster_id = "{cluster_id}" request.body = CreateEsListenerRequestBody( ca_cert_id="2a7b050f598e4ea8a61cffbe2bdb312f", server_cert_id="1b74ae4afad741e6bc9497429d3d0838", protocol_port=9200, protocol="HTTPS" ) response = client.create_elb_listener(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
Configure ELB listeners for a cluster.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" css "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/css/v1" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/css/v1/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/css/v1/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 := css.NewCssClient( css.CssClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.CreateElbListenerRequest{} request.ClusterId = "{cluster_id}" caCertIdCreateEsListenerRequestBody:= "2a7b050f598e4ea8a61cffbe2bdb312f" serverCertIdCreateEsListenerRequestBody:= "1b74ae4afad741e6bc9497429d3d0838" request.Body = &model.CreateEsListenerRequestBody{ CaCertId: &caCertIdCreateEsListenerRequestBody, ServerCertId: &serverCertIdCreateEsListenerRequestBody, ProtocolPort: int32(9200), Protocol: "HTTPS", } response, err := client.CreateElbListener(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } |
More
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 |
|---|---|
| 200 | Request succeeded. |
| 400 | Invalid request. Modify the request instead of retrying. |
| 409 | The request cannot be processed due to a conflict. This status code indicates that the resource that the client attempts to create already exits, or the requested update failed due to a conflict. |
| 412 | The server does not meet one of the requirements that the requester puts on the request. |
Error Codes
See Error Codes.
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