AWS IAM User assume IAM Role的示例代码

 Python boto3

import boto3
 
ACCESS_KEY_ID="xxxxxxxxxxxxx"
aws_secret_access_key = "xxxxxxxxxxxxx"
 
role_arn = 'arn:aws:iam::911111111111:role/xxxx-role'
 
session = boto3.Session(aws_access_key_id=ACCESS_KEY_ID,
                            aws_secret_access_key=SECRET_ACCESS_KEY,
                            region_name="us-east-1")
 
sts_client = session.client("sts")
#获取 IAM 用户的 temporary credentials
credentials = sts_client.assume_role(RoleArn=role_arn, RoleSessionName="a-session")
 
#使用 temporary credentials 创建一个 S3 client
s3_client = boto3.client("s3",
                         aws_access_key_id=credentials['Credentials']["AccessKeyId"],
                         aws_secret_access_key=credentials['Credentials']            ["SecretAccessKey"],
                        aws_session_token=credentials['Credentials']["SessionToken"])
s3_client.upload_file("filefullpath", "bucket-name-not-arn", "object_key")

一段示例代码，如何用Python boto3先使用某个IAM User的AK SK登陆sts。

然后继承某个IAM Role。

最后执行某个具体操作，比如代码中的 上传文件到S3 bucket。

AWS CLI

#先看看profile
aws configure list 
 
#继承role
aws sts assume-role --role-arn arn:aws:iam::1231231231231:role/my-role --role-session-name my-session --profile myprofile
 
#查看权限
aws sts get-caller-identity
 
#开始操作
aws s3 ls
aws s3 cp s3://xxxx-bucket/xxx-file-key  /local/path