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v2.274.0

Group L2 construct ​

An IAM Group (collection of IAM users) lets you specify permissions for multiple users, which can make it easier to manage permissions for those users.

Example ​

ts
const user = new iam.User(this, 'MyUser'); // or User.fromUserName(this, 'User', 'johnsmith');
const group = new iam.Group(this, 'MyGroup'); // or Group.fromGroupArn(this, 'Group', 'arn:aws:iam::account-id:group/group-name');

user.addToGroup(group);
// or
group.addUser(user);
python
user = iam.User(self, "MyUser") # or User.fromUserName(this, 'User', 'johnsmith');
group = iam.Group(self, "MyGroup") # or Group.fromGroupArn(this, 'Group', 'arn:aws:iam::account-id:group/group-name');

user.add_to_group(group)
# or
group.add_user(user)
java
User user = new User(this, "MyUser"); // or User.fromUserName(this, 'User', 'johnsmith');
Group group = new Group(this, "MyGroup"); // or Group.fromGroupArn(this, 'Group', 'arn:aws:iam::account-id:group/group-name');

user.addToGroup(group);
// or
group.addUser(user);
csharp
// Install: dotnet add package Amazon.CDK.Lib
var user = new User(this, "MyUser"); // or User.fromUserName(this, 'User', 'johnsmith');
var group = new Group(this, "MyGroup"); // or Group.fromGroupArn(this, 'Group', 'arn:aws:iam::account-id:group/group-name');

user.AddToGroup(group);
// or
group.AddUser(user);
go
// Install: go get github.com/aws/aws-cdk-go/awscdk/v2
user := iam.NewUser(this, jsii.String("MyUser")) // or User.fromUserName(this, 'User', 'johnsmith');
group := iam.NewGroup(this, jsii.String("MyGroup")) // or Group.fromGroupArn(this, 'Group', 'arn:aws:iam::account-id:group/group-name');

user.AddToGroup(group)
// or
group.addUser(user)

Initializer ​

ts
new Group(scope: Construct, id: string, props?: GroupProps)
python
Group(scope: Construct, id: str, props: typing.Optional[GroupProps] = None)
java
new Group(Construct scope, String id, GroupProps props)
csharp
new Group(Construct scope, string id, GroupProps? props = null)
go
NewGroup(Scope Construct, Id *string, Props GroupProps)

Construct Props ​

groupNameoptionalstringgroup_nameoptionalstrgroupNameoptionalStringGroupNameoptionalstringGroupNameoptional*string#
A name for the IAM group.

Default: Generated by CloudFormation (recommended)

notes

For valid values, see the GroupName parameter for the CreateGroup action in the IAM API Reference. If you don't specify a name, AWS CloudFormation generates a unique physical ID and uses that ID for the group 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.

managedPoliciesoptionalIManagedPolicy[]managed_policiesoptionaltyping.List[IManagedPolicy]managedPoliciesoptionalList<IManagedPolicy>ManagedPoliciesoptionalIManagedPolicy[]ManagedPoliciesoptional*[]IManagedPolicy#
A list of managed policies associated with this role.

Default: No managed policies.

You can add managed policies later using addManagedPolicy(ManagedPolicy.fromAwsManagedPolicyName(policyName)).

pathoptionalstringpathoptionalstrpathoptionalStringPathoptionalstringPathoptional*string= /#
The path to the group.

For more information about paths, see IAM Identifiers in the IAM User Guide.

Properties ​

assumeRoleActionstringassume_role_actionstrassumeRoleActionStringAssumeRoleActionstringAssumeRoleAction*stringrequired#
When this Principal is used in an AssumeRole policy, the action to use.
The environment this resource belongs to.
notes

For resources that are created and managed in a Stack (those created by creating new class instances like new Role(), new Bucket(), etc.), this is always the same as the environment of the stack they belong to.

For referenced resources (those obtained from referencing methods like Role.fromRoleArn(), Bucket.fromBucketName(), etc.), they might be different than the stack they were imported into.

grantPrincipalIPrincipalgrant_principalIPrincipalgrantPrincipalIPrincipalGrantPrincipalIPrincipalGrantPrincipalIPrincipalrequired#
The principal to grant permissions to.
groupArnstringgroup_arnstrgroupArnStringGroupArnstringGroupArn*stringrequired#
Returns the IAM Group ARN.
groupNamestringgroup_namestrgroupNameStringGroupNamestringGroupName*stringrequired#
Returns the IAM Group Name.
groupRefGroupReferencegroup_refGroupReferencegroupRefGroupReferenceGroupRefGroupReferenceGroupRefGroupReferencerequired#
A reference to a Group resource.
nodeNodenodeNodenodeNodeNodeNodeNodeNoderequired#
The tree node.
policyFragmentPrincipalPolicyFragmentpolicy_fragmentPrincipalPolicyFragmentpolicyFragmentPrincipalPolicyFragmentPolicyFragmentPrincipalPolicyFragmentPolicyFragmentPrincipalPolicyFragmentrequired#
Return the policy fragment that identifies this principal in a Policy.
principalAccountmay be undefinedstringprincipal_accountmay be undefinedstrprincipalAccountmay be undefinedStringPrincipalAccountmay be undefinedstringPrincipalAccountmay be undefined*string#
The AWS account ID of this principal.

Can be undefined when the account is not known (for example, for service principals). Can be a Token - in that case, it's assumed to be AWS::AccountId.

PROPERTY_INJECTION_IDstringproperty_injection_idstrPROPERTY_INJECTION_IDStringPROPERTY_INJECTION_IDstringPROPERTY_INJECTION_ID*stringrequiredstatic#
Uniquely identifies this class.
stackStackstackStackstackStackStackStackStackStackrequired#
The stack in which this resource is defined.

Methods ​

addManagedPolicy(policy: IManagedPolicy): voiddef add_managed_policy(self, policy: IManagedPolicy) -> Nonepublic void addManagedPolicy(IManagedPolicy policy)public void AddManagedPolicy(IManagedPolicy policy)func AddManagedPolicy(Policy IManagedPolicy)#
Attaches a managed policy to this group.

See [IAM and AWS STS quotas, name requirements, and character limits] (https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_iam-quotas.html#reference_iam-quotas-entities) for quota of managed policies attached to an IAM group.

1 parameter

Parameters

  • policypolicypolicypolicyPolicy — The managed policy to attach.
addToPolicy(statement: PolicyStatement): booleandef add_to_policy(self, statement: PolicyStatement) -> boolpublic Boolean addToPolicy(PolicyStatement statement)public bool AddToPolicy(PolicyStatement statement)func AddToPolicy(Statement PolicyStatement) *bool#
Add to the policy of this principal.
addToPrincipalPolicy(statement: PolicyStatement): AddToPrincipalPolicyResultdef add_to_principal_policy(self, statement: PolicyStatement) -> AddToPrincipalPolicyResultpublic AddToPrincipalPolicyResult addToPrincipalPolicy(PolicyStatement statement)public AddToPrincipalPolicyResult AddToPrincipalPolicy(PolicyStatement statement)func AddToPrincipalPolicy(Statement PolicyStatement) AddToPrincipalPolicyResult#
Adds an IAM statement to the default policy.
addUser(user: IUser): voiddef add_user(self, user: IUser) -> Nonepublic void addUser(IUser user)public void AddUser(IUser user)func AddUser(User IUser)#
Adds a user to this group.
applyCrossStackReferenceStrength(strength: ReferenceStrength): voiddef apply_cross_stack_reference_strength(self, strength: ReferenceStrength) -> Nonepublic void applyCrossStackReferenceStrength(ReferenceStrength strength)public void ApplyCrossStackReferenceStrength(ReferenceStrength strength)func ApplyCrossStackReferenceStrength(Strength ReferenceStrength)#
Override the cross-stack reference strength for this resource.
notes · 1 parameter

When set, any cross-stack reference to this resource will use the specified mechanism instead of the global default determined by the @aws-cdk/core:defaultCrossStackReferences context key. This is useful for selectively weakening specific references to avoid the "deadly embrace" problem without changing the app-wide default.

Parameters

  • strengthstrengthstrengthstrengthStrength — - The reference strength to use for this resource.
applyRemovalPolicy(policy: RemovalPolicy): voiddef apply_removal_policy(self, policy: RemovalPolicy) -> Nonepublic void applyRemovalPolicy(RemovalPolicy policy)public void ApplyRemovalPolicy(RemovalPolicy policy)func ApplyRemovalPolicy(Policy RemovalPolicy)#
Apply the given removal policy to this resource.
notes

The Removal Policy controls what happens to this resource when it stops being managed by CloudFormation, either because you've removed it from the CDK application or because you've made a change that requires the resource to be replaced.

The resource can be deleted (RemovalPolicy.DESTROY), or left in your AWS account for data recovery and cleanup later (RemovalPolicy.RETAIN).

attachInlinePolicy(policy: Policy): voiddef attach_inline_policy(self, policy: Policy) -> Nonepublic void attachInlinePolicy(Policy policy)public void AttachInlinePolicy(Policy policy)func AttachInlinePolicy(Policy Policy)#
Attaches a policy to this group.
1 parameter

Parameters

  • policypolicypolicypolicyPolicy — The policy to attach.
fromGroupArn(scope: Construct, id: string, groupArn: string): IGroup@staticmethod def from_group_arn(scope: Construct, id: str, group_arn: str) -> IGrouppublic static IGroup fromGroupArn(Construct scope, String id, String groupArn)public static IGroup FromGroupArn(Construct scope, string id, string groupArn)func FromGroupArn(Scope Construct, Id *string, GroupArn *string) IGroupstatic#
Import an external group by ARN.
notes · 3 parameters

If the imported Group ARN is a Token (such as a CfnParameter.valueAsString or a Fn.importValue()) and the referenced group has a path (like arn:...:group/AdminGroup/NetworkAdmin), the groupName property will not resolve to the correct value. Instead it will resolve to the first path component. We unfortunately cannot express the correct calculation of the full path name as a CloudFormation expression. In this scenario the Group ARN should be supplied without the path in order to resolve the correct group resource.

Parameters

  • scopescopescopescopeScope — construct scope.
  • ididididId — construct id.
  • groupArngroup_arngroupArngroupArnGroupArn — the ARN of the group to import (e.g. arn:aws:iam::account-id:group/group-name).
fromGroupName(scope: Construct, id: string, groupName: string): IGroup@staticmethod def from_group_name(scope: Construct, id: str, group_name: str) -> IGrouppublic static IGroup fromGroupName(Construct scope, String id, String groupName)public static IGroup FromGroupName(Construct scope, string id, string groupName)func FromGroupName(Scope Construct, Id *string, GroupName *string) IGroupstatic#
Import an existing group by given name (with path).

This method has same caveats of fromGroupArn

3 parameters

Parameters

  • scopescopescopescopeScope — construct scope.
  • ididididId — construct id.
  • groupNamegroup_namegroupNamegroupNameGroupName — the groupName (path included) of the existing group to import.
isConstruct(x: any): boolean@staticmethod def is_construct(x: Any) -> boolpublic static Boolean isConstruct(Object x)public static bool IsConstruct(object x)func IsConstruct(X interface{}) *boolstatic#
Checks if `x` is a construct.
notes · 1 parameter · returns

Use this method instead of instanceof to properly detect Construct instances, even when the construct library is symlinked.

Explanation: in JavaScript, multiple copies of the constructs library on disk are seen as independent, completely different libraries. As a consequence, the class Construct in each copy of the constructs library is seen as a different class, and an instance of one class will not test as instanceof the other class. npm install will not create installations like this, but users may manually symlink construct libraries together or use a monorepo tool: in those cases, multiple copies of the constructs library can be accidentally installed, and instanceof will behave unpredictably. It is safest to avoid using instanceof, and using this type-testing method instead.

Parameters

  • xxxxX — Any object.

Returns: true if x is an object created from a class which extends Construct.

isOwnedResource(construct: IConstruct): boolean@staticmethod def is_owned_resource(construct: IConstruct) -> boolpublic static Boolean isOwnedResource(IConstruct construct)public static bool IsOwnedResource(IConstruct construct)func IsOwnedResource(Construct IConstruct) *boolstatic#
Returns true if the construct was created by CDK, and false otherwise.
isResource(construct: IConstruct): boolean@staticmethod def is_resource(construct: IConstruct) -> boolpublic static Boolean isResource(IConstruct construct)public static bool IsResource(IConstruct construct)func IsResource(Construct IConstruct) *boolstatic#
Check whether the given construct is a Resource.
toString(): stringdef to_string(self, ) -> strpublic String toString()public string ToString()func ToString() *string#
Returns a string representation of this construct.
with(...mixins: IMixin[]): IConstructdef with(self, mixins: IMixin) -> IConstructpublic IConstruct with(IMixin mixins)public IConstruct With(IMixin mixins)func With(Mixins IMixin) IConstruct#
Applies one or more mixins to this construct.

Mixins are applied in order. The list of constructs is captured at the start of the call, so constructs added by a mixin will not be visited. Use multiple with() calls if subsequent mixins should apply to added constructs.