Use CreateRole
with an Amazon SDK or CLI
The following code examples show how to use CreateRole
.
Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples:
- .NET
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- Amazon SDK for .NET
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. /// <summary> /// Create a new IAM role. /// </summary> /// <param name="roleName">The name of the IAM role.</param> /// <param name="rolePolicyDocument">The name of the IAM policy document /// for the new role.</param> /// <returns>The Amazon Resource Name (ARN) of the role.</returns> public async Task<string> CreateRoleAsync(string roleName, string rolePolicyDocument) { var request = new CreateRoleRequest { RoleName = roleName, AssumeRolePolicyDocument = rolePolicyDocument, }; var response = await _IAMService.CreateRoleAsync(request); return response.Role.Arn; }
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For API details, see CreateRole in Amazon SDK for .NET API Reference.
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- Bash
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- Amazon CLI with Bash script
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. ############################################################################### # function errecho # # This function outputs everything sent to it to STDERR (standard error output). ############################################################################### function errecho() { printf "%s\n" "$*" 1>&2 } ############################################################################### # function iam_create_role # # This function creates an IAM role. # # Parameters: # -n role_name -- The name of the IAM role. # -p policy_json -- The assume role policy document. # # Returns: # The ARN of the role. # And: # 0 - If successful. # 1 - If it fails. ############################################################################### function iam_create_role() { local role_name policy_document response local option OPTARG # Required to use getopts command in a function. # bashsupport disable=BP5008 function usage() { echo "function iam_create_user_access_key" echo "Creates an AWS Identity and Access Management (IAM) role." echo " -n role_name The name of the IAM role." echo " -p policy_json -- The assume role policy document." echo "" } # Retrieve the calling parameters. while getopts "n:p:h" option; do case "${option}" in n) role_name="${OPTARG}" ;; p) policy_document="${OPTARG}" ;; h) usage return 0 ;; \?) echo "Invalid parameter" usage return 1 ;; esac done export OPTIND=1 if [[ -z "$role_name" ]]; then errecho "ERROR: You must provide a role name with the -n parameter." usage return 1 fi if [[ -z "$policy_document" ]]; then errecho "ERROR: You must provide a policy document with the -p parameter." usage return 1 fi response=$(aws iam create-role \ --role-name "$role_name" \ --assume-role-policy-document "$policy_document" \ --output text \ --query Role.Arn) local error_code=${?} if [[ $error_code -ne 0 ]]; then aws_cli_error_log $error_code errecho "ERROR: AWS reports create-role operation failed.\n$response" return 1 fi echo "$response" return 0 }
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For API details, see CreateRole in Amazon CLI Command Reference.
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- C++
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- SDK for C++
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. bool AwsDoc::IAM::createIamRole( const Aws::String &roleName, const Aws::String &policy, const Aws::Client::ClientConfiguration &clientConfig) { Aws::IAM::IAMClient client(clientConfig); Aws::IAM::Model::CreateRoleRequest request; request.SetRoleName(roleName); request.SetAssumeRolePolicyDocument(policy); Aws::IAM::Model::CreateRoleOutcome outcome = client.CreateRole(request); if (!outcome.IsSuccess()) { std::cerr << "Error creating role. " << outcome.GetError().GetMessage() << std::endl; } else { const Aws::IAM::Model::Role iamRole = outcome.GetResult().GetRole(); std::cout << "Created role " << iamRole.GetRoleName() << "\n"; std::cout << "ID: " << iamRole.GetRoleId() << "\n"; std::cout << "ARN: " << iamRole.GetArn() << std::endl; } return outcome.IsSuccess(); }
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For API details, see CreateRole in Amazon SDK for C++ API Reference.
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- CLI
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- Amazon CLI
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Example 1: To create an IAM role
The following
create-role
command creates a role namedTest-Role
and attaches a trust policy to it.aws iam create-role \ --role-name
Test-Role
\ --assume-role-policy-documentfile://Test-Role-Trust-Policy.json
Output:
{ "Role": { "AssumeRolePolicyDocument": "<URL-encoded-JSON>", "RoleId": "AKIAIOSFODNN7EXAMPLE", "CreateDate": "2013-06-07T20:43:32.821Z", "RoleName": "Test-Role", "Path": "/", "Arn": "arn:aws:iam::123456789012:role/Test-Role" } }
The trust policy is defined as a JSON document in the Test-Role-Trust-Policy.json file. (The file name and extension do not have significance.) The trust policy must specify a principal.
To attach a permissions policy to a role, use the
put-role-policy
command.For more information, see Creating IAM roles
in the Amazon IAM User Guide. Example 2: To create an IAM role with specified maximum session duration
The following
create-role
command creates a role namedTest-Role
and sets a maximum session duration of 7200 seconds (2 hours).aws iam create-role \ --role-name
Test-Role
\ --assume-role-policy-documentfile://Test-Role-Trust-Policy.json
\ --max-session-duration7200
Output:
{ "Role": { "Path": "/", "RoleName": "Test-Role", "RoleId": "AKIAIOSFODNN7EXAMPLE", "Arn": "arn:aws:iam::12345678012:role/Test-Role", "CreateDate": "2023-05-24T23:50:25+00:00", "AssumeRolePolicyDocument": { "Version": "2012-10-17", "Statement": [ { "Sid": "Statement1", "Effect": "Allow", "Principal": { "AWS": "arn:aws:iam::12345678012:root" }, "Action": "sts:AssumeRole" } ] } } }
For more information, see Modifying a role maximum session duration (Amazon API)
in the Amazon IAM User Guide. Example 3: To create an IAM Role with tags
The following command creates an IAM Role
Test-Role
with tags. This example uses the--tags
parameter flag with the following JSON-formatted tags:'{"Key": "Department", "Value": "Accounting"}' '{"Key": "Location", "Value": "Seattle"}'
. Alternatively, the--tags
flag can be used with tags in the shorthand format:'Key=Department,Value=Accounting Key=Location,Value=Seattle'
.aws iam create-role \ --role-name
Test-Role
\ --assume-role-policy-documentfile://Test-Role-Trust-Policy.json
\ --tags '{"Key": "Department", "Value": "Accounting"}
' '{"Key": "Location", "Value": "Seattle"}
'Output:
{ "Role": { "Path": "/", "RoleName": "Test-Role", "RoleId": "AKIAIOSFODNN7EXAMPLE", "Arn": "arn:aws:iam::123456789012:role/Test-Role", "CreateDate": "2023-05-25T23:29:41+00:00", "AssumeRolePolicyDocument": { "Version": "2012-10-17", "Statement": [ { "Sid": "Statement1", "Effect": "Allow", "Principal": { "AWS": "arn:aws:iam::123456789012:root" }, "Action": "sts:AssumeRole" } ] }, "Tags": [ { "Key": "Department", "Value": "Accounting" }, { "Key": "Location", "Value": "Seattle" } ] } }
For more information, see Tagging IAM roles
in the Amazon IAM User Guide. -
For API details, see CreateRole
in Amazon CLI Command Reference.
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- Go
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- SDK for Go V2
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. import ( "context" "encoding/json" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/iam" "github.com/aws/aws-sdk-go-v2/service/iam/types" ) // RoleWrapper encapsulates AWS Identity and Access Management (IAM) role actions // used in the examples. // It contains an IAM service client that is used to perform role actions. type RoleWrapper struct { IamClient *iam.Client } // CreateRole creates a role that trusts a specified user. The trusted user can assume // the role to acquire its permissions. // PolicyDocument shows how to work with a policy document as a data structure and // serialize it to JSON by using Go's JSON marshaler. func (wrapper RoleWrapper) CreateRole(ctx context.Context, roleName string, trustedUserArn string) (*types.Role, error) { var role *types.Role trustPolicy := PolicyDocument{ Version: "2012-10-17", Statement: []PolicyStatement{{ Effect: "Allow", Principal: map[string]string{"AWS": trustedUserArn}, Action: []string{"sts:AssumeRole"}, }}, } policyBytes, err := json.Marshal(trustPolicy) if err != nil { log.Printf("Couldn't create trust policy for %v. Here's why: %v\n", trustedUserArn, err) return nil, err } result, err := wrapper.IamClient.CreateRole(ctx, &iam.CreateRoleInput{ AssumeRolePolicyDocument: aws.String(string(policyBytes)), RoleName: aws.String(roleName), }) if err != nil { log.Printf("Couldn't create role %v. Here's why: %v\n", roleName, err) } else { role = result.Role } return role, err }
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For API details, see CreateRole
in Amazon SDK for Go API Reference.
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- Java
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- SDK for Java 2.x
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. import org.json.simple.JSONObject; import org.json.simple.parser.JSONParser; import software.amazon.awssdk.services.iam.model.CreateRoleRequest; import software.amazon.awssdk.services.iam.model.CreateRoleResponse; import software.amazon.awssdk.services.iam.model.IamException; import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.iam.IamClient; import java.io.FileReader; /* * This example requires a trust policy document. For more information, see: * https://aws.amazon.com/blogs/security/how-to-use-trust-policies-with-iam-roles/ * * * In addition, set up your development environment, including your credentials. * * For information, see this documentation topic: * * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html */ public class CreateRole { public static void main(String[] args) throws Exception { final String usage = """ Usage: <rolename> <fileLocation>\s Where: rolename - The name of the role to create.\s fileLocation - The location of the JSON document that represents the trust policy.\s """; if (args.length != 2) { System.out.println(usage); System.exit(1); } String rolename = args[0]; String fileLocation = args[1]; Region region = Region.AWS_GLOBAL; IamClient iam = IamClient.builder() .region(region) .build(); String result = createIAMRole(iam, rolename, fileLocation); System.out.println("Successfully created user: " + result); iam.close(); } public static String createIAMRole(IamClient iam, String rolename, String fileLocation) throws Exception { try { JSONObject jsonObject = (JSONObject) readJsonSimpleDemo(fileLocation); CreateRoleRequest request = CreateRoleRequest.builder() .roleName(rolename) .assumeRolePolicyDocument(jsonObject.toJSONString()) .description("Created using the AWS SDK for Java") .build(); CreateRoleResponse response = iam.createRole(request); System.out.println("The ARN of the role is " + response.role().arn()); } catch (IamException e) { System.err.println(e.awsErrorDetails().errorMessage()); System.exit(1); } return ""; } public static Object readJsonSimpleDemo(String filename) throws Exception { FileReader reader = new FileReader(filename); JSONParser jsonParser = new JSONParser(); return jsonParser.parse(reader); } }
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For API details, see CreateRole in Amazon SDK for Java 2.x API Reference.
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- JavaScript
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- SDK for JavaScript (v3)
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. Create the role.
import { CreateRoleCommand, IAMClient } from "@aws-sdk/client-iam"; const client = new IAMClient({}); /** * * @param {string} roleName */ export const createRole = (roleName) => { const command = new CreateRoleCommand({ AssumeRolePolicyDocument: JSON.stringify({ Version: "2012-10-17", Statement: [ { Effect: "Allow", Principal: { Service: "lambda.amazonaws.com", }, Action: "sts:AssumeRole", }, ], }), RoleName: roleName, }); return client.send(command); };
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For API details, see CreateRole in Amazon SDK for JavaScript API Reference.
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- PHP
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- SDK for PHP
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. $uuid = uniqid(); $service = new IAMService(); $assumeRolePolicyDocument = "{ \"Version\": \"2012-10-17\", \"Statement\": [{ \"Effect\": \"Allow\", \"Principal\": {\"AWS\": \"{$user['Arn']}\"}, \"Action\": \"sts:AssumeRole\" }] }"; $assumeRoleRole = $service->createRole("iam_demo_role_$uuid", $assumeRolePolicyDocument); echo "Created role: {$assumeRoleRole['RoleName']}\n"; /** * @param string $roleName * @param string $rolePolicyDocument * @return array * @throws AwsException */ public function createRole(string $roleName, string $rolePolicyDocument) { $result = $this->customWaiter(function () use ($roleName, $rolePolicyDocument) { return $this->iamClient->createRole([ 'AssumeRolePolicyDocument' => $rolePolicyDocument, 'RoleName' => $roleName, ]); }); return $result['Role']; }
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For API details, see CreateRole in Amazon SDK for PHP API Reference.
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- PowerShell
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- Tools for PowerShell
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Example 1: This example creates a new role named
MyNewRole
and attaches to it the policy found in the fileNewRoleTrustPolicy.json
. Note that you must use the-Raw
switch parameter to successfully process the JSON policy file. The policy document displayed in the output is URL encoded. It is decoded in this example with theUrlDecode
.NET method.$results = New-IAMRole -AssumeRolePolicyDocument (Get-Content -raw NewRoleTrustPolicy.json) -RoleName MyNewRole $results
Output:
Arn : arn:aws:iam::123456789012:role/MyNewRole AssumeRolePolicyDocument : %7B%0D%0A%20%20%22Version%22%3A%20%222012-10-17%22%2C%0D%0A%20%20%22Statement%22 %3A%20%5B%0D%0A%20%20%20%20%7B%0D%0A%20%20%20%20%20%20%22Sid%22%3A%20%22%22%2C %0D%0A%20%20%20%20%20%20%22Effect%22%3A%20%22Allow%22%2C%0D%0A%20%20%20%20%20%20 %22Principal%22%3A%20%7B%0D%0A%20%20%20%20%20%20%20%20%22AWS%22%3A%20%22arn%3Aaws %3Aiam%3A%3A123456789012%3ADavid%22%0D%0A%20%20%20%20%20%20%7D%2C%0D%0A%20%20%20 %20%20%20%22Action%22%3A%20%22sts%3AAssumeRole%22%0D%0A%20%20%20%20%7D%0D%0A%20 %20%5D%0D%0A%7D CreateDate : 4/15/2015 11:04:23 AM Path : / RoleId : V5PAJI2KPN4EAEXAMPLE1 RoleName : MyNewRole [System.Reflection.Assembly]::LoadWithPartialName("System.Web.HttpUtility") [System.Web.HttpUtility]::UrlDecode($results.AssumeRolePolicyDocument) { "Version": "2012-10-17", "Statement": [ { "Sid": "", "Effect": "Allow", "Principal": { "AWS": "arn:aws:iam::123456789012:David" }, "Action": "sts:AssumeRole" } ] }
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For API details, see CreateRole
in Amazon Tools for PowerShell Cmdlet Reference.
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- Python
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- SDK for Python (Boto3)
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. def create_role(role_name, allowed_services): """ Creates a role that lets a list of specified services assume the role. :param role_name: The name of the role. :param allowed_services: The services that can assume the role. :return: The newly created role. """ trust_policy = { "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Principal": {"Service": service}, "Action": "sts:AssumeRole", } for service in allowed_services ], } try: role = iam.create_role( RoleName=role_name, AssumeRolePolicyDocument=json.dumps(trust_policy) ) logger.info("Created role %s.", role.name) except ClientError: logger.exception("Couldn't create role %s.", role_name) raise else: return role
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For API details, see CreateRole in Amazon SDK for Python (Boto3) API Reference.
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- Ruby
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- SDK for Ruby
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. # Creates a role and attaches policies to it. # # @param role_name [String] The name of the role. # @param assume_role_policy_document [Hash] The trust relationship policy document. # @param policy_arns [Array<String>] The ARNs of the policies to attach. # @return [String, nil] The ARN of the new role if successful, or nil if an error occurred. def create_role(role_name, assume_role_policy_document, policy_arns) response = @iam_client.create_role( role_name: role_name, assume_role_policy_document: assume_role_policy_document.to_json ) role_arn = response.role.arn policy_arns.each do |policy_arn| @iam_client.attach_role_policy( role_name: role_name, policy_arn: policy_arn ) end role_arn rescue Aws::IAM::Errors::ServiceError => e @logger.error("Error creating role: #{e.message}") nil end
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For API details, see CreateRole in Amazon SDK for Ruby API Reference.
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- Rust
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- SDK for Rust
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. pub async fn create_role( client: &iamClient, role_name: &str, role_policy_document: &str, ) -> Result<Role, iamError> { let response: CreateRoleOutput = loop { if let Ok(response) = client .create_role() .role_name(role_name) .assume_role_policy_document(role_policy_document) .send() .await { break response; } }; Ok(response.role.unwrap()) }
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For API details, see CreateRole
in Amazon SDK for Rust API reference.
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- Swift
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- SDK for Swift
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. import AWSIAM import AWSS3 public func createRole(name: String, policyDocument: String) async throws -> String { let input = CreateRoleInput( assumeRolePolicyDocument: policyDocument, roleName: name ) do { let output = try await client.createRole(input: input) guard let role = output.role else { throw ServiceHandlerError.noSuchRole } guard let id = role.roleId else { throw ServiceHandlerError.noSuchRole } return id } catch { print("ERROR: createRole:", dump(error)) throw error } }
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For API details, see CreateRole
in Amazon SDK for Swift API reference.
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For a complete list of Amazon SDK developer guides and code examples, see Using this service with an Amazon SDK. This topic also includes information about getting started and details about previous SDK versions.