Elastic Compute Service:Instance RAM role

Python

1. Install the Credentials tool.

   Note

   The version of alibabacloud_credentials must be 0.3.6 or later.

   pip install alibabacloud_credentials

2. Configure the ECS instance to use the instance RAM role to retrieve temporary access credentials.

   from alibabacloud_credentials.client import Client as CredClient
   from alibabacloud_credentials.models import Config as CredConfig
   
   credentialConfig = CredConfig(
   	type='ecs_ram_role',
   	# Optional. Specify the name of the RAM role of the ECS instance. If you do not specify this parameter, the value is automatically obtained. To reduce the number of requests, we recommend that you specify this parameter.
   	role_name='<RoleName>'
   )
   credentialsClient = CredClient(credentialConfig)
   

Java

1. Add the credentials dependency.

   Note

   The version of credentials-java must be 0.3.10 or later.

   <!-- https://mvnrepository.com/artifact/com.aliyun/credentials-java -->
   <dependency>
      <groupId>com.aliyun</groupId>
      <artifactId>credentials-java</artifactId>
      <version>LATEST</version>
   </dependency>

2. Configure the ECS instance to use the instance RAM role to retrieve temporary access credentials.

   import com.aliyun.credentials.Client;
   import com.aliyun.credentials.models.Config;
   
   public class DemoTest {
       public static void main(String[] args) throws Exception {
           Config credentialConfig = new Config();
           credentialConfig.setType("ecs_ram_role");
           // Optional. Specify the name of the RAM role of the ECS instance. If you do not specify this parameter, the value is automatically obtained. To reduce the number of requests, we recommend that you specify this parameter.
           credentialConfig.setRoleName("<RoleName>");
           Client credentialClient = new Client(credentialConfig);
       }
   }

Go

1. Install the Credentials tool.

   Note

   The version of credentials-go must be 1.3.10 or later.

   • Use go get to download and install the tool.

     go get -u github.com/aliyun/credentials-go

   • If you manage dependencies with dep, execute the following command.

     dep ensure -add github.com/aliyun/credentials-go

2. Configure the ECS instance to use the instance RAM role to retrieve temporary access credentials.

   package main
   
   import (
   	"fmt"
   	"github.com/aliyun/credentials-go/credentials"
   )
   
   func _main(args []*string) {
   	credentialsConfig := new(credentials.Config).
   		SetType("ecs_ram_role").
   		// Optional. Specify the name of the RAM role of the ECS instance. If you do not specify this parameter, the value is automatically obtained. To reduce the number of requests, we recommend that you specify this parameter. You can obtain the value from the ALIBABA_CLOUD_ECS_METADATA environment variable.
   		SetRoleName("<RoleName>")
   	credentialClient, err := credentials.NewCredential(credentialsConfig)
   	if err != nil {
   		panic(_err)
   	}
   }

Node.js

1. Install the Credentials tool.

   Note

   The version of credentials must be 2.3.1 or later.

   npm install @alicloud/credentials

2. Configure the ECS instance to use the instance RAM role to retrieve temporary access credentials.

   const Credential = require('@alicloud/credentials');
   
   const credentialsConfig = new Credential.Config({
     type: 'ecs_ram_role',
     // Optional. Specify the name of the RAM role of the ECS instance. If you do not specify this parameter, the value is automatically obtained. To reduce the number of requests, we recommend that you specify this parameter. You can obtain the value from the ALIBABA_CLOUD_ECS_METADATA environment variable.
     roleName: '<RoleName>',
   });
   const cred = new Credential.default(credentialsConfig);   

.NET

1. Install the Credentials tool.

   Note

   The version of credentials must be 1.4.2 or later.

   dotnet add package Aliyun.Credentials

2. Configure the ECS instance to use the instance RAM role to retrieve temporary access credentials.

   using Aliyun.Credentials.Models;
   
   namespace credentials_demo
   {
       class Program
       {
           static void Main(string[] args)
           {
               var config = new Config()
               {
                   Type = "ecs_ram_role",
                 	// Optional. Specify the name of the RAM role of the ECS instance. If you do not specify this parameter, the value is automatically obtained. To reduce the number of requests, we recommend that you specify this parameter. You can obtain the value from the ALIBABA_CLOUD_ECS_METADATA environment variable.
                   RoleName = "<RoleName>" 
               }
           }
       }
   }

PHP

1. Install the Credentials tool.

   Note

   The version of credentials must be 1.2.0 or later.

   composer require alibabacloud/credentials

2. Configure the ECS instance to use the instance RAM role to retrieve temporary access credentials.

   <?php
   
   use AlibabaCloud\Credentials\Credential;
   use AlibabaCloud\Credentials\Credential\Config;
   
   $credConfig = new Config([
       'type' => 'ecs_ram_role',
       // Optional. Specify the name of the RAM role of the ECS instance. If you do not specify this parameter, the value is automatically obtained. To reduce the number of requests, we recommend that you specify this parameter. You can obtain the value from the ALIBABA_CLOUD_ECS_METADATA environment variable.
       'roleName' => '<RoleName>',
   ]);