Ejemplos de código de IAM con AWS SDK
Los siguientes ejemplos de código muestran cómo utilizar IAM con un kit de desarrollo de software (SDK) de AWS.
Las acciones son extractos de código de programas más grandes y deben ejecutarse en contexto. Mientras las acciones muestran cómo llamar a las funciones de servicio individuales, es posible ver las acciones en contexto en los escenarios relacionados y en los ejemplos entre servicios.
Los escenarios son ejemplos de código que muestran cómo llevar a cabo una tarea específica llamando a varias funciones dentro del mismo servicio.
Para obtener una lista completa de las guías para desarrolladores del AWS SDK y ejemplos de código, consulte Uso de este servicio con un SDK de AWS. En este tema también se incluye información sobre cómo comenzar a utilizar el SDK y detalles sobre sus versiones anteriores.
Introducción
En los siguientes ejemplos de código se muestra cómo empezar a utilizar IAM.
- .NET
-
- AWS SDK for .NET
-
namespace IAMActions;
public class HelloIAM
{
static async Task Main(string[] args)
{
// Getting started with AWS Identity and Access Management (IAM). List
// the policies for the account.
var iamClient = new AmazonIdentityManagementServiceClient();
var listPoliciesPaginator = iamClient.Paginators.ListPolicies(new ListPoliciesRequest());
var policies = new List<ManagedPolicy>();
await foreach (var response in listPoliciesPaginator.Responses)
{
policies.AddRange(response.Policies);
}
Console.WriteLine("Here are the policies defined for your account:\n");
policies.ForEach(policy =>
{
Console.WriteLine($"Created: {policy.CreateDate}\t{policy.PolicyName}\t{policy.Description}");
});
}
}
- C++
-
- SDK para C++
-
Código del archivo de CMake CMakeLists.txt.
# Set the minimum required version of CMake for this project.
cmake_minimum_required(VERSION 3.13)
# Set the AWS service components used by this project.
set(SERVICE_COMPONENTS iam)
# Set this project's name.
project("hello_iam")
# Set the C++ standard to use to build this target.
# At least C++ 11 is required for the AWS SDK for C++.
set(CMAKE_CXX_STANDARD 11)
# Use the MSVC variable to determine if this is a Windows build.
set(WINDOWS_BUILD ${MSVC})
if (WINDOWS_BUILD) # Set the location where CMake can find the installed libraries for the AWS SDK.
string(REPLACE ";" "/aws-cpp-sdk-all;" SYSTEM_MODULE_PATH "${CMAKE_SYSTEM_PREFIX_PATH}/aws-cpp-sdk-all")
list(APPEND CMAKE_PREFIX_PATH ${SYSTEM_MODULE_PATH})
endif ()
# Find the AWS SDK for C++ package.
find_package(AWSSDK REQUIRED COMPONENTS ${SERVICE_COMPONENTS})
if (WINDOWS_BUILD AND AWSSDK_INSTALL_AS_SHARED_LIBS)
# Copy relevant AWS SDK for C++ libraries into the current binary directory for running and debugging.
# set(BIN_SUB_DIR "/Debug") # if you are building from the command line you may need to uncomment this
# and set the proper subdirectory to the executables' location.
AWSSDK_CPY_DYN_LIBS(SERVICE_COMPONENTS "" ${CMAKE_CURRENT_BINARY_DIR}${BIN_SUB_DIR})
endif ()
add_executable(${PROJECT_NAME}
hello_iam.cpp)
target_link_libraries(${PROJECT_NAME}
${AWSSDK_LINK_LIBRARIES})
Código del archivo de origen iam.cpp.
#include <aws/core/Aws.h>
#include <aws/iam/IAMClient.h>
#include <aws/iam/model/ListPoliciesRequest.h>
#include <iostream>
#include <iomanip>
/*
* A "Hello IAM" starter application which initializes an AWS Identity and Access Management (IAM) client
* and lists the IAM policies.
*
* main function
*
* Usage: 'hello_iam'
*
*/
int main(int argc, char **argv) {
Aws::SDKOptions options;
// Optionally change the log level for debugging.
// options.loggingOptions.logLevel = Utils::Logging::LogLevel::Debug;
Aws::InitAPI(options); // Should only be called once.
int result = 0;
{
const Aws::String DATE_FORMAT("%Y-%m-%d");
Aws::Client::ClientConfiguration clientConfig;
// Optional: Set to the AWS Region (overrides config file).
// clientConfig.region = "us-east-1";
Aws::IAM::IAMClient iamClient(clientConfig);
Aws::IAM::Model::ListPoliciesRequest request;
bool done = false;
bool header = false;
while (!done) {
auto outcome = iamClient.ListPolicies(request);
if (!outcome.IsSuccess()) {
std::cerr << "Failed to list iam policies: " <<
outcome.GetError().GetMessage() << std::endl;
result = 1;
break;
}
if (!header) {
std::cout << std::left << std::setw(55) << "Name" <<
std::setw(30) << "ID" << std::setw(80) << "Arn" <<
std::setw(64) << "Description" << std::setw(12) <<
"CreateDate" << std::endl;
header = true;
}
const auto &policies = outcome.GetResult().GetPolicies();
for (const auto &policy: policies) {
std::cout << std::left << std::setw(55) <<
policy.GetPolicyName() << std::setw(30) <<
policy.GetPolicyId() << std::setw(80) << policy.GetArn() <<
std::setw(64) << policy.GetDescription() << std::setw(12) <<
policy.GetCreateDate().ToGmtString(DATE_FORMAT.c_str()) <<
std::endl;
}
if (outcome.GetResult().GetIsTruncated()) {
request.SetMarker(outcome.GetResult().GetMarker());
} else {
done = true;
}
}
}
Aws::ShutdownAPI(options); // Should only be called once.
return result;
}
- Go
-
- SDK para Go V2
-
package main
import (
"context"
"fmt"
"github.com/aws/aws-sdk-go-v2/aws"
"github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/service/iam"
)
// main uses the AWS SDK for Go (v2) to create an AWS Identity and Access Management (IAM)
// client and list up to 10 policies in your account.
// This example uses the default settings specified in your shared credentials
// and config files.
func main() {
sdkConfig, err := config.LoadDefaultConfig(context.TODO())
if err != nil {
fmt.Println("Couldn't load default configuration. Have you set up your AWS account?")
fmt.Println(err)
return
}
iamClient := iam.NewFromConfig(sdkConfig)
const maxPols = 10
fmt.Printf("Let's list up to %v policies for your account.\n", maxPols)
result, err := iamClient.ListPolicies(context.TODO(), &iam.ListPoliciesInput{
MaxItems: aws.Int32(maxPols),
})
if err != nil {
fmt.Printf("Couldn't list policies for your account. Here's why: %v\n", err)
return
}
if len(result.Policies) == 0 {
fmt.Println("You don't have any policies!")
} else {
for _, policy := range result.Policies {
fmt.Printf("\t%v\n", *policy.PolicyName)
}
}
}
- Java
-
- SDK para Java 2.x
-
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.iam.IamClient;
import software.amazon.awssdk.services.iam.model.ListPoliciesResponse;
import software.amazon.awssdk.services.iam.model.Policy;
import java.util.List;
/**
* Before running this Java V2 code example, set up your development
* environment, including your credentials.
*
* For more information, see the following documentation topic:
*
* https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
*/
public class HelloIAM {
public static void main(String[] args) {
Region region = Region.AWS_GLOBAL;
IamClient iam = IamClient.builder()
.region(region)
.build();
listPolicies(iam);
}
public static void listPolicies(IamClient iam) {
ListPoliciesResponse response = iam.listPolicies();
List<Policy> polList = response.policies();
polList.forEach(policy -> {
System.out.println("Policy Name: " + policy.policyName());
});
}
}
- JavaScript
-
- SDK para JavaScript (v3)
-
import { IAMClient, paginateListPolicies } from "@aws-sdk/client-iam";
const client = new IAMClient({});
export const listLocalPolicies = async () => {
/**
* In v3, the clients expose paginateOperationName APIs that are written using async generators so that you can use async iterators in a for await..of loop.
* https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/index.html#paginators
*/
const paginator = paginateListPolicies(
{ client, pageSize: 10 },
// List only customer managed policies.
{ Scope: "Local" },
);
console.log("IAM policies defined in your account:");
let policyCount = 0;
for await (const page of paginator) {
if (page.Policies) {
page.Policies.forEach((p) => {
console.log(`${p.PolicyName}`);
policyCount++;
});
}
}
console.log(`Found ${policyCount} policies.`);
};
- Python
-
- SDK para Python (Boto3)
-
import boto3
def main():
"""
Lists the managed policies in your AWS account using the AWS SDK for Python (Boto3).
"""
iam = boto3.client("iam")
try:
# Get a paginator for the list_policies operation
paginator = iam.get_paginator("list_policies")
# Iterate through the pages of results
for page in paginator.paginate(Scope="All", OnlyAttached=False):
for policy in page["Policies"]:
print(f"Policy name: {policy['PolicyName']}")
print(f" Policy ARN: {policy['Arn']}")
except boto3.exceptions.BotoCoreError as e:
print(f"Encountered an error while listing policies: {e}")
if __name__ == "__main__":
main()
- Ruby
-
- SDK para Ruby
-
require 'aws-sdk-iam'
require 'logger'
# IAMManager is a class responsible for managing IAM operations
# such as listing all IAM policies in the current AWS account.
class IAMManager
def initialize(client)
@client = client
@logger = Logger.new($stdout)
end
# Lists and prints all IAM policies in the current AWS account.
def list_policies
@logger.info('Here are the IAM policies in your account:')
paginator = @client.list_policies
policies = []
paginator.each_page do |page|
policies.concat(page.policies)
end
if policies.empty?
@logger.info("You don't have any IAM policies.")
else
policies.each do |policy|
@logger.info("- #{policy.policy_name}")
end
end
end
end
if $PROGRAM_NAME == __FILE__
iam_client = Aws::IAM::Client.new
manager = IAMManager.new(iam_client)
manager.list_policies
end
- Rust
-
- SDK para Rust
-
De src/bin/hello.rs.
use aws_sdk_iam::error::SdkError;
use aws_sdk_iam::operation::list_policies::ListPoliciesError;
use clap::Parser;
const PATH_PREFIX_HELP: &str = "The path prefix for filtering the results.";
#[derive(Debug, clap::Parser)]
#[command(about)]
struct HelloScenarioArgs {
#[arg(long, default_value="/", help=PATH_PREFIX_HELP)]
pub path_prefix: String,
}
#[tokio::main]
async fn main() -> Result<(), SdkError<ListPoliciesError>> {
let sdk_config = aws_config::load_from_env().await;
let client = aws_sdk_iam::Client::new(&sdk_config);
let args = HelloScenarioArgs::parse();
iam_service::list_policies(client, args.path_prefix).await?;
Ok(())
}
De src/iam-service-lib.rs.
pub async fn list_policies(
client: iamClient,
path_prefix: String,
) -> Result<Vec<String>, SdkError<ListPoliciesError>> {
let list_policies = client
.list_policies()
.path_prefix(path_prefix)
.scope(PolicyScopeType::Local)
.into_paginator()
.items()
.send()
.try_collect()
.await?;
let policy_names = list_policies
.into_iter()
.map(|p| {
let name = p
.policy_name
.unwrap_or_else(|| "Missing Policy Name".to_string());
println!("{}", name);
name
})
.collect();
Ok(policy_names)
}
