AWS::Cognito::IdentityPoolRoleAttachment - Amazon CloudFormation
SyntaxPropertiesReturn valuesExamples
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AWS::Cognito::IdentityPoolRoleAttachment

The AWS::Cognito::IdentityPoolRoleAttachment resource manages the role configuration for an Amazon Cognito identity pool.

Syntax

To declare this entity in your Amazon CloudFormation template, use the following syntax:

JSON

{
  "Type" : "AWS::Cognito::IdentityPoolRoleAttachment",
  "Properties" : {
      "IdentityPoolId" : String,
      "RoleMappings" : Json,
      "Roles" : Json
    }
}

YAML

Type: AWS::Cognito::IdentityPoolRoleAttachment
Properties:
  IdentityPoolId: String
  RoleMappings: Json
  Roles: Json

Properties

IdentityPoolId

An identity pool ID in the format REGION:GUID.

Required: Yes

Type: String

Update requires: Replacement

RoleMappings

How users for a specific identity provider are mapped to roles. This is a string to the RoleMapping object map. The string identifies the identity provider. For example: graph.facebook.com or cognito-idp.us-east-1.amazonaws.com/us-east-1_abcdefghi:app_client_id.

If the IdentityProvider field isn't provided in this object, the string is used as the identity provider name.

For more information, see the RoleMapping property.

Required: No

Type: Json

Update requires: No interruption

Roles

The map of the roles associated with this pool. For a given role, the key is either "authenticated" or "unauthenticated". The value is the role ARN.

Required: No

Type: Json

Update requires: No interruption

Return values

Ref

When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the IdentityPoolId, such as us-east-2:0d01f4d7-1305-4408-b437-12345EXAMPLE.

For more information about using the Ref function, see Ref.

Examples

Setting the roles for an identity pool

The following example sets roles for an identity pool. It sets “authenticated” and “unauthenticated” roles and maps two identity providers to them. The first identity provider is “graph.facebook.com”. The second is using a reference to set the identity provider name.

JSON

{
   "IdentityPoolRoleAttachment":{
      "Type":"AWS::Cognito::IdentityPoolRoleAttachment",
      "Properties":{
         "IdentityPoolId":{
            "Ref":"IdentityPool"
         },
         "Roles":{
            "authenticated":{
               "Fn::GetAtt":[
                  "AuthenticatedRole",
                  "Arn"
               ]
            },
            "unauthenticated":{
               "Fn::GetAtt":[
                  "UnAuthenticatedRole",
                  "Arn"
               ]
            }
         },
         "RoleMappings":{
            "graph.facebook.com":{
               "IdentityProvider":"graph.facebook.com",
               "AmbiguousRoleResolution":"Deny",
               "Type":"Rules",
               "RulesConfiguration":{
                  "Rules":[
                     {
                        "Claim":"sub",
                        "MatchType":"Equals",
                        "RoleARN":{
                           "Fn::GetAtt":[
                              "AuthenticatedRole",
                              "Arn"
                           ]
                        },
                        "Value":"goodvalue"
                     }
                  ]
               }
            },
            "userpool1":{
               "IdentityProvider":{
                  "Ref":"CognitoUserPool"
               },
               "AmbiguousRoleResolution":"Deny",
               "Type":"Rules",
               "RulesConfiguration":{
                  "Rules":[
                     {
                        "Claim":"sub",
                        "MatchType":"Equals",
                        "RoleARN":{
                           "Fn::GetAtt":[
                              "AuthenticatedRole",
                              "Arn"
                           ]
                        },
                        "Value":"goodvalue"
                     }
                  ]
               }
            }
         }
      }
   }
}

YAML

IdentityPoolRoleAttachment: 
  Type: AWS::Cognito::IdentityPoolRoleAttachment 
  Properties: 
    IdentityPoolId: !Ref IdentityPool
    Roles: 
      "authenticated": !GetAtt AuthenticatedRole.Arn 
      "unauthenticated": !GetAtt UnAuthenticatedRole.Arn 
    RoleMappings:  
      "graph.facebook.com":
        IdentityProvider: "graph.facebook.com" 
        AmbiguousRoleResolution: Deny 
        Type: Rules 
        RulesConfiguration: 
          Rules: 
            - Claim: "sub" 
              MatchType: "Equals" 
              RoleARN: !GetAtt AuthenticatedRole.Arn 
              Value: "goodvalue"
      "userpool1": 
        IdentityProvider: !Ref CognitoUserPool 
        AmbiguousRoleResolution: Deny 
        Type: Rules 
        RulesConfiguration: 
          Rules: 
            - Claim: "sub" 
              MatchType: "Equals" 
              RoleARN: !GetAtt AuthenticatedRole.Arn 
              Value: "goodvalue"