如何找到AWS EC2客户端的角色？

Question

只是从Java代码开始

final AmazonEC2 ec2 = AmazonEC2ClientBuilder.defaultClient();

使用哪个IAM用户登录以及该用户具有哪些IAM角色？

Answer 1

尝试：

import com.amazonaws.services.securitytoken.AWSSecurityTokenService;
import com.amazonaws.services.securitytoken.AWSSecurityTokenServiceClientBuilder;
import com.amazonaws.services.securitytoken.model.GetCallerIdentityRequest;
import com.amazonaws.services.securitytoken.model.GetCallerIdentityResult;


public class Test {
    public static void main(String args[]) {
        AWSSecurityTokenService sts = AWSSecurityTokenServiceClientBuilder.defaultClient();
        GetCallerIdentityRequest request = new GetCallerIdentityRequest();
        GetCallerIdentityResult response = sts.getCallerIdentity(request);
        String roleArn = response.getArn();

        System.out.println(roleArn);
    }
}

Maven pom.xml ：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>test</groupId>
    <artifactId>test</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>com.amazonaws</groupId>
                <artifactId>aws-java-sdk-bom</artifactId>
                <version>1.11.327</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk-sts</artifactId>
        </dependency>
    </dependencies>

</project>

您应该在roleArn得到以下roleArn ：

arn:aws:sts::xxxxxxx:assumed-role/ROLE_NAME_HERE/i-INSTANCE_ID_HERE

要么：

arn:aws:iam::xxxxxxx:user/USER_NAME_HERE