Use CreateServiceLinkedRole with an Amazon SDK or CLI

    /// <summary>
    /// Create an IAM service-linked role.
    /// </summary>
    /// <param name="serviceName">The name of the AWS Service.</param>
    /// <param name="description">A description of the IAM service-linked role.</param>
    /// <returns>The IAM role that was created.</returns>
    public async Task<Role> CreateServiceLinkedRoleAsync(string serviceName, string description)
    {
        var request = new CreateServiceLinkedRoleRequest
        {
            AWSServiceName = serviceName,
            Description = description
        };

        var response = await _IAMService.CreateServiceLinkedRoleAsync(request);
        return response.Role;
    }

To create a service-linked role

The following create-service-linked-role example creates a service-linked role for the specified Amazon service and attaches the specified description.

aws iam create-service-linked-role \
    --aws-service-name lex.amazonaws.com \
    --description "My service-linked role to support Lex"

Output:

{
    "Role": {
        "Path": "/aws-service-role/lex.amazonaws.com/",
        "RoleName": "AWSServiceRoleForLexBots",
        "RoleId": "AROA1234567890EXAMPLE",
        "Arn": "arn:aws:iam::1234567890:role/aws-service-role/lex.amazonaws.com/AWSServiceRoleForLexBots",
        "CreateDate": "2019-04-17T20:34:14+00:00",
        "AssumeRolePolicyDocument": {
            "Version": "2012-10-17",
            "Statement": [
                {
                    "Action": [
                        "sts:AssumeRole"
                    ],
                    "Effect": "Allow",
                    "Principal": {
                        "Service": [
                            "lex.amazonaws.com"
                        ]
                    }
                }
            ]
        }
    }
}

For more information, see Using service-linked roles in the Amazon IAM User Guide.

// 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
}



// CreateServiceLinkedRole creates a service-linked role that is owned by the specified service.
func (wrapper RoleWrapper) CreateServiceLinkedRole(serviceName string, description string) (*types.Role, error) {
	var role *types.Role
	result, err := wrapper.IamClient.CreateServiceLinkedRole(context.TODO(), &iam.CreateServiceLinkedRoleInput{
		AWSServiceName: aws.String(serviceName),
		Description:    aws.String(description),
	})
	if err != nil {
		log.Printf("Couldn't create service-linked role %v. Here's why: %v\n", serviceName, err)
	} else {
		role = result.Role
	}
	return role, err
}

Create a service-linked role.

import {
  CreateServiceLinkedRoleCommand,
  GetRoleCommand,
  IAMClient,
} from "@aws-sdk/client-iam";

const client = new IAMClient({});

/**
 *
 * @param {string} serviceName
 */
export const createServiceLinkedRole = async (serviceName) => {
  const command = new CreateServiceLinkedRoleCommand({
    // For a list of AWS services that support service-linked roles,
    // see https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_aws-services-that-work-with-iam.html.
    //
    // For a list of AWS service endpoints, see https://docs.aws.amazon.com/general/latest/gr/aws-service-information.html.
    AWSServiceName: serviceName,
  });
  try {
    const response = await client.send(command);
    console.log(response);
    return response;
  } catch (caught) {
    if (
      caught instanceof Error &&
      caught.name === "InvalidInputException" &&
      caught.message.includes(
        "Service role name AWSServiceRoleForElasticBeanstalk has been taken in this account",
      )
    ) {
      console.warn(caught.message);
      return client.send(
        new GetRoleCommand({ RoleName: "AWSServiceRoleForElasticBeanstalk" }),
      );
    } else {
      throw caught;
    }
  }
};

$uuid = uniqid();
$service = new IAMService();

    public function createServiceLinkedRole($awsServiceName, $customSuffix = "", $description = "")
    {
        $createServiceLinkedRoleArguments = ['AWSServiceName' => $awsServiceName];
        if ($customSuffix) {
            $createServiceLinkedRoleArguments['CustomSuffix'] = $customSuffix;
        }
        if ($description) {
            $createServiceLinkedRoleArguments['Description'] = $description;
        }
        return $this->iamClient->createServiceLinkedRole($createServiceLinkedRoleArguments);
    }

Example 1: This example creates a servicelinked role for autoscaling service.

New-IAMServiceLinkedRole -AWSServiceName autoscaling.amazonaws.com -CustomSuffix RoleNameEndsWithThis -Description "My service-linked role to support autoscaling"

def create_service_linked_role(service_name, description):
    """
    Creates a service-linked role.

    :param service_name: The name of the service that owns the role.
    :param description: A description to give the role.
    :return: The newly created role.
    """
    try:
        response = iam.meta.client.create_service_linked_role(
            AWSServiceName=service_name, Description=description
        )
        role = iam.Role(response["Role"]["RoleName"])
        logger.info("Created service-linked role %s.", role.name)
    except ClientError:
        logger.exception("Couldn't create service-linked role for %s.", service_name)
        raise
    else:
        return role

  # Creates a service-linked role
  #
  # @param service_name [String] The service name to create the role for.
  # @param description [String] The description of the service-linked role.
  # @param suffix [String] Suffix for customizing role name.
  # @return [String] The name of the created role
  def create_service_linked_role(service_name, description, suffix)
    response = @iam_client.create_service_linked_role(
      aws_service_name: service_name, description: description, custom_suffix: suffix,)
    role_name = response.role.role_name
    @logger.info("Created service-linked role #{role_name}.")
    role_name
  rescue Aws::Errors::ServiceError => e
    @logger.error("Couldn't create service-linked role for #{service_name}. Here's why:")
    @logger.error("\t#{e.code}: #{e.message}")
    raise
  end

pub async fn create_service_linked_role(
    client: &iamClient,
    aws_service_name: String,
    custom_suffix: Option<String>,
    description: Option<String>,
) -> Result<CreateServiceLinkedRoleOutput, SdkError<CreateServiceLinkedRoleError>> {
    let response = client
        .create_service_linked_role()
        .aws_service_name(aws_service_name)
        .set_custom_suffix(custom_suffix)
        .set_description(description)
        .send()
        .await?;

    Ok(response)
}

    public func createServiceLinkedRole(service: String, suffix: String? = nil, description: String?)
                    async throws -> IAMClientTypes.Role {
        let input = CreateServiceLinkedRoleInput(
            awsServiceName: service,
            customSuffix: suffix,
            description: description
        )
        do {
            let output = try await client.createServiceLinkedRole(input: input)
            guard let role = output.role else {
                throw ServiceHandlerError.noSuchRole
            }
            return role
        } catch {
            throw error
        }
    }