Help Center/ Cloud Container Engine/ API Reference/ APIs/ Node Pool Management/ Synchronizing Node Pools
Updated on 2024-11-06 GMT+08:00
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Synchronizing Node Pools

Function

This API is used to synchronize the configurations of existing nodes in a node pool.

The URL for cluster management is in the format of https://Endpoint/uri, where uri specifies the resource path for API access.

Calling Method

For details, see Calling APIs.

URI

POST /api/v3/projects/:projectid/clusters/{cluster_id}/nodepools/{nodepool_id}/operation/upgrade

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Details:

Project ID. For details about how to obtain the value, see How to Obtain Parameters in the API URI.

Constraints:

None

Options:

Project IDs of the account

Default value:

N/A

cluster_id

Yes

String

Details:

Cluster ID. For details about how to obtain the value, see How to Obtain Parameters in the API URI.

Constraints:

None

Options:

Cluster IDs

Default value:

N/A

nodepool_id

Yes

String

Details:

Node pool ID. For details about how to obtain the ID, see How to Obtain Parameters in the API URI.

Constraints:

None

Options:

Cluster IDs

Default value:

N/A

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

Content-Type

Yes

String

Details:

Request body type or format

Constraints:

The GET method is not verified.

Options:

  • application/json

  • application/json;charset=utf-8

  • application/x-pem-file

Default value:

N/A

X-Auth-Token

Yes

String

Details:

Requests for calling an API can be authenticated using either a token or AK/SK. If token-based authentication is used, this parameter is mandatory and must be set to a user token. For details, see Obtaining a User Token.

Constraints:

None

Options:

N/A

Default value:

N/A
Table 3 Request body parameters

Parameter

Mandatory

Type

Description

spec

Yes

UpgradeNodePoolSpec object

Parameters in the request for synchronizing a node pool
Table 4 UpgradeNodePoolSpec

Parameter

Mandatory

Type

Description

maxUnavailable

Yes

Integer

Maximum number of nodes to be synchronized in each batch. The value ranges from 1 to 20. It specifies the maximum number of nodes that can be unavailable during node upgrade. Nodes will be unavailable during synchronization by resetting the nodes. Properly configure this parameter to prevent pod scheduling failures caused by too many unavailable nodes in the cluster.

nodeIDs

No

Array of strings

List of node IDs selected in the node pool to be synchronized. For details about how to obtain the IDs, see How to Obtain Parameters in the API URI.

nodePoolID

Yes

String

Node pool ID. For details about how to obtain the ID, see How to Obtain Parameters in the API URI.

nodeTemplate

No

UpgradeNodePoolSpecNodeTemplate object

Parameters for synchronizing a node pool template
Table 5 UpgradeNodePoolSpecNodeTemplate

Parameter

Mandatory

Type

Description

lifeCycle

Yes

NodeLifecycleConfig object

Customized node lifecycle configurations

login

Yes

Login object

Node login mode. You can use both key pair and password login simultaneously.

NOTE:

This parameter cannot be modified when a node pool is being updated.
Table 6 NodeLifecycleConfig

Parameter

Mandatory

Type

Description

preInstall

No

String

Pre-installation script. The characters of both the pre-installation and post-installation scripts are centrally calculated, and the total number of characters after transcoding cannot exceed 10,240.

The input value must be encoded using Base64. The method is as follows:

echo -n "*Content to be encoded*" | base64

postInstall

No

String

Post-installation script. The characters of both the pre-installation and post-installation scripts are centrally calculated, and the total number of characters after transcoding cannot exceed 10,240.

The input value must be encoded using Base64. The method is as follows:

echo -n "*Content to be encoded*" | base64
Table 7 Login

Parameter

Mandatory

Type

Description

sshKey

No

String

Details:

Name of the key pair used for login

Constraints:

None

Options:

N/A

Default value:

N/A

userPassword

No

UserPassword object

Details:

Password used for node login

Constraints:

None
Table 8 UserPassword

Parameter

Mandatory

Type

Description

username

No

String

Details:

Login account. The default value is root.

Constraints:

None

Options:

N/A

Default value:

root

password

Yes

String

Details:

Login password. If a username and password are used when a node is created, this field is shielded in the response body.

Constraints:

The password field must be salted during node creation. For details, see Adding a Salt in the password Field When Creating a Node.

Options:

A password must:

  • Contain 8 to 26 characters.

  • Contain at least three of the following character types: uppercase letters, lowercase letters, digits, and special characters !@$%^-_=+[{}]:,./?

  • Not contain the username or the username spelled backwards.

Default value:

N/A

Response Parameters

None

Example Requests

  • Synchronize an on-premises node pool.

    {
  "spec" : {
    "maxUnavailable" : 1,
    "nodeIDs" : [ "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa", "bbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbb" ],
    "nodePoolID" : "cccccccc-cccc-cccc-cccc-cccccccccccc"
  }
}

  • Synchronize the default node pool.

    {
  "spec" : {
    "maxUnavailable" : 1,
    "nodeIDs" : [ "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa", "bbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbb" ],
    "nodePoolID" : "DefaultPool",
    "nodeTemplate" : {
      "lifeCycle" : {
        "preInstall" : "ZWNobyAx",
        "postInstall" : "ZWNobyAx"
      },
      "login" : {
        "userPassword" : {
          "password" : "xxxxx",
          "username" : "root"
        }
      }
    }
  }
}

Example Responses

None

SDK Sample Code

The SDK sample code is as follows.

  • Synchronize an on-premises node pool.

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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.cce.v3.region.CceRegion;
import com.huaweicloud.sdk.cce.v3.*;
import com.huaweicloud.sdk.cce.v3.model.*;

import java.util.List;
import java.util.ArrayList;

public class UpgradeNodePoolSolution {

    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);

        CceClient client = CceClient.newBuilder()
                .withCredential(auth)
                .withRegion(CceRegion.valueOf("<YOUR REGION>"))
                .build();
        UpgradeNodePoolRequest request = new UpgradeNodePoolRequest();
        request.withClusterId("{cluster_id}");
        request.withNodepoolId("{nodepool_id}");
        UpgradeNodePool body = new UpgradeNodePool();
        List<String> listSpecNodeIDs = new ArrayList<>();
        listSpecNodeIDs.add("aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa");
        listSpecNodeIDs.add("bbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbb");
        NodePoolUpgradeSpec specbody = new NodePoolUpgradeSpec();
        specbody.withNodePoolID("cccccccc-cccc-cccc-cccc-cccccccccccc")
            .withNodeIDs(listSpecNodeIDs)
            .withMaxUnavailable(1);
        body.withSpec(specbody);
        request.withBody(body);
        try {
            UpgradeNodePoolResponse response = client.upgradeNodePool(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());
        }
    }
}

  • Synchronize the default node pool.

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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.cce.v3.region.CceRegion;
import com.huaweicloud.sdk.cce.v3.*;
import com.huaweicloud.sdk.cce.v3.model.*;

import java.util.List;
import java.util.ArrayList;

public class UpgradeNodePoolSolution {

    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);

        CceClient client = CceClient.newBuilder()
                .withCredential(auth)
                .withRegion(CceRegion.valueOf("<YOUR REGION>"))
                .build();
        UpgradeNodePoolRequest request = new UpgradeNodePoolRequest();
        request.withClusterId("{cluster_id}");
        request.withNodepoolId("{nodepool_id}");
        UpgradeNodePool body = new UpgradeNodePool();
        NodeTemplateLifeCycle lifeCycleNodeTemplate = new NodeTemplateLifeCycle();
        lifeCycleNodeTemplate.withPreInstall("ZWNobyAx")
            .withPostInstall("ZWNobyAx");
        NodeTemplateLoginUserPassword userPasswordLogin = new NodeTemplateLoginUserPassword();
        userPasswordLogin.withUsername("root")
            .withPassword("xxxxx");
        NodeTemplateLogin loginNodeTemplate = new NodeTemplateLogin();
        loginNodeTemplate.withUserPassword(userPasswordLogin);
        NodeTemplate nodeTemplateSpec = new NodeTemplate();
        nodeTemplateSpec.withLogin(loginNodeTemplate)
            .withLifeCycle(lifeCycleNodeTemplate);
        List<String> listSpecNodeIDs = new ArrayList<>();
        listSpecNodeIDs.add("aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa");
        listSpecNodeIDs.add("bbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbb");
        NodePoolUpgradeSpec specbody = new NodePoolUpgradeSpec();
        specbody.withNodePoolID("DefaultPool")
            .withNodeIDs(listSpecNodeIDs)
            .withNodeTemplate(nodeTemplateSpec)
            .withMaxUnavailable(1);
        body.withSpec(specbody);
        request.withBody(body);
        try {
            UpgradeNodePoolResponse response = client.upgradeNodePool(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());
        }
    }
}

  • Synchronize an on-premises node pool.

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    # coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkcce.v3.region.cce_region import CceRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkcce.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 = CceClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(CceRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = UpgradeNodePoolRequest()
        request.cluster_id = "{cluster_id}"
        request.nodepool_id = "{nodepool_id}"
        listNodeIDsSpec = [
            "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa",
            "bbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbb"
        ]
        specbody = NodePoolUpgradeSpec(
            node_pool_id="cccccccc-cccc-cccc-cccc-cccccccccccc",
            node_i_ds=listNodeIDsSpec,
            max_unavailable=1
        )
        request.body = UpgradeNodePool(
            spec=specbody
        )
        response = client.upgrade_node_pool(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

  • Synchronize the default node pool.

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    # coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkcce.v3.region.cce_region import CceRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkcce.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 = CceClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(CceRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = UpgradeNodePoolRequest()
        request.cluster_id = "{cluster_id}"
        request.nodepool_id = "{nodepool_id}"
        lifeCycleNodeTemplate = NodeTemplateLifeCycle(
            pre_install="ZWNobyAx",
            post_install="ZWNobyAx"
        )
        userPasswordLogin = NodeTemplateLoginUserPassword(
            username="root",
            password="xxxxx"
        )
        loginNodeTemplate = NodeTemplateLogin(
            user_password=userPasswordLogin
        )
        nodeTemplateSpec = NodeTemplate(
            login=loginNodeTemplate,
            life_cycle=lifeCycleNodeTemplate
        )
        listNodeIDsSpec = [
            "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa",
            "bbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbb"
        ]
        specbody = NodePoolUpgradeSpec(
            node_pool_id="DefaultPool",
            node_i_ds=listNodeIDsSpec,
            node_template=nodeTemplateSpec,
            max_unavailable=1
        )
        request.body = UpgradeNodePool(
            spec=specbody
        )
        response = client.upgrade_node_pool(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

  • Synchronize an on-premises node pool.

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    package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    cce "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/cce/v3"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/cce/v3/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/cce/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 := cce.NewCceClient(
        cce.CceClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.UpgradeNodePoolRequest{}
	request.ClusterId = "{cluster_id}"
	request.NodepoolId = "{nodepool_id}"
	var listNodeIDsSpec = []string{
        "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa",
	    "bbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbb",
    }
	maxUnavailableSpec:= int32(1)
	specbody := &model.NodePoolUpgradeSpec{
		NodePoolID: "cccccccc-cccc-cccc-cccc-cccccccccccc",
		NodeIDs: &listNodeIDsSpec,
		MaxUnavailable: &maxUnavailableSpec,
	}
	request.Body = &model.UpgradeNodePool{
		Spec: specbody,
	}
	response, err := client.UpgradeNodePool(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

  • Synchronize the default node pool.

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    package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    cce "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/cce/v3"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/cce/v3/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/cce/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 := cce.NewCceClient(
        cce.CceClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.UpgradeNodePoolRequest{}
	request.ClusterId = "{cluster_id}"
	request.NodepoolId = "{nodepool_id}"
	preInstallLifeCycle:= "ZWNobyAx"
	postInstallLifeCycle:= "ZWNobyAx"
	lifeCycleNodeTemplate := &model.NodeTemplateLifeCycle{
		PreInstall: &preInstallLifeCycle,
		PostInstall: &postInstallLifeCycle,
	}
	usernameUserPassword:= "root"
	passwordUserPassword:= "xxxxx"
	userPasswordLogin := &model.NodeTemplateLoginUserPassword{
		Username: &usernameUserPassword,
		Password: &passwordUserPassword,
	}
	loginNodeTemplate := &model.NodeTemplateLogin{
		UserPassword: userPasswordLogin,
	}
	nodeTemplateSpec := &model.NodeTemplate{
		Login: loginNodeTemplate,
		LifeCycle: lifeCycleNodeTemplate,
	}
	var listNodeIDsSpec = []string{
        "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa",
	    "bbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbb",
    }
	maxUnavailableSpec:= int32(1)
	specbody := &model.NodePoolUpgradeSpec{
		NodePoolID: "DefaultPool",
		NodeIDs: &listNodeIDsSpec,
		NodeTemplate: nodeTemplateSpec,
		MaxUnavailable: &maxUnavailableSpec,
	}
	request.Body = &model.UpgradeNodePool{
		Spec: specbody,
	}
	response, err := client.UpgradeNodePool(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

200

The node pool synchronization has been accepted.

Error Codes

See Error Codes.

Parent Topic: Node Pool Management