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AWS Fundamentals
L2 Construct

Role

IAM Role. Defines an IAM role. The role is created with an assume policy document associated with the specified AWS service principal defined in `serviceAssumeRole`.

Import

import { Role } from 'aws-cdk-lib/aws-iam';

Or use the module namespace:

import * as iam from 'aws-cdk-lib/aws-iam';
// iam.Role

Properties

Configuration passed to the constructor as RoleProps.

assumedByRequired
IPrincipal

The IAM principal (i.e. `new ServicePrincipal('sns.amazonaws.com')`) which can assume this role. You can later modify the assume role policy document by accessing it via the `assumeRolePolicy` property.

descriptionOptional
string

A description of the role. It can be up to 1000 characters long.

Default: - No description.

externalIdsOptional
string[]

List of IDs that the role assumer needs to provide one of when assuming this role. If the configured and provided external IDs do not match, the AssumeRole operation will fail.

Default: No external ID required

inlinePoliciesOptional
{ [key: string]: PolicyDocument }

A list of named policies to inline into this role. These policies will be created with the role, whereas those added by ``addToPolicy`` are added using a separate CloudFormation resource (allowing a way around circular dependencies that could otherwise be introduced).

Default: - No policy is inlined in the Role resource.

managedPoliciesOptional
IManagedPolicy[]

A list of managed policies associated with this role. You can add managed policies later using `addManagedPolicy(ManagedPolicy.fromAwsManagedPolicyName(policyName))`.

Default: - No managed policies.

maxSessionDurationOptional
Duration

The maximum session duration that you want to set for the specified role. This setting can have a value from 1 hour (3600sec) to 12 (43200sec) hours. Anyone who assumes the role from the AWS CLI or API can use the DurationSeconds API parameter or the duration-seconds CLI parameter to request a longer session. The MaxSessionDuration setting determines the maximum duration that can be requested using the DurationSeconds parameter. If users don't specify a value for the DurationSeconds parameter, their security credentials are valid for one hour by default. This applies when you use the AssumeRole* API operations or the assume-role* CLI operations but does not apply when you use those operations to create a console URL.

Default: Duration.hours(1)

pathOptional
string

The path associated with this role. For information about IAM paths, see Friendly Names and Paths in IAM User Guide.

Default: /

permissionsBoundaryOptional
IManagedPolicy

AWS supports permissions boundaries for IAM entities (users or roles). A permissions boundary is an advanced feature for using a managed policy to set the maximum permissions that an identity-based policy can grant to an IAM entity. An entity's permissions boundary allows it to perform only the actions that are allowed by both its identity-based policies and its permissions boundaries.

Default: - No permissions boundary.

roleNameOptional
string

A name for the IAM role. For valid values, see the RoleName parameter for the CreateRole action in the IAM API Reference. IMPORTANT: If you specify a name, you cannot perform updates that require replacement of this resource. You can perform updates that require no or some interruption. If you must replace the resource, specify a new name. If you specify a name, you must specify the CAPABILITY_NAMED_IAM value to acknowledge your template's capabilities. For more information, see Acknowledging IAM Resources in AWS CloudFormation Templates.

Default: - AWS CloudFormation generates a unique physical ID and uses that ID for the role name.

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