如何在信任關系中導入值

Question

我從另一個堆棧導出了一個值並嘗試以 cloudformation 角色導入“AssumeRolePolicyDocument”，嘗試了很多方法但出現以下錯誤

“語法錯誤 position (1,195)（服務：AmazonIdentityManagement；狀態代碼：400；錯誤代碼：MalformedPolicyDocument；請求 ID：b1b4b5ef-88ef-444b-8aa7-0548ce0002a6；代理：空）”

  EksAutoscalerRole: 
    Type: AWS::IAM::Role
    Properties:
      RoleName: Eks-Autoscaler-Role
      Path: "/"
      AssumeRolePolicyDocument: 
        Version: '2012-10-17'
        Statement:
        - Effect: Allow
          Principal:
            Federated: 
              'Fn::Sub':
              - 'arn:aws:iam::1122334455:oidc-provider/oidc.eks.us-east-1.amazonaws.com/id/${oidc}'
              - oidc: 
                  "Fn::ImportValue": EksOidc
          Action: 'sts:AssumeRoleWithWebIdentity'
          Condition:
            StringEquals:   
              'Fn::Sub': 
              - 'oidc.eks.us-east-1.amazonaws.com/id/${oidc}:sub: system:serviceaccount:kube-system:cluster-autoscaler'
              - oidc: 
                  "Fn::ImportValue": EksOidc
      ManagedPolicyArns:
      - !Ref EksAutoscalerPolicy

也嘗試了以下方法： 插入類似於插入參數的 CloudFormation ImportValue？

更新試過下面的代碼現在可以工作了。

  EksAutoscalerRole: 
    Type: AWS::IAM::Role
    Properties:
      RoleName: Eks-Autoscaler-Role
      Path: /
      AssumeRolePolicyDocument: 
        "Fn::Sub":
        - '{
            "Version": "2012-10-17",
            "Statement": [
                {
                    "Effect": "Allow",
                    "Principal": {
                        "Federated": "${EksAutoscalerProvider}"
                    },
                    "Action": "sts:AssumeRoleWithWebIdentity",
                    "Condition": {
                        "StringEquals": {
                            "oidc.eks.${AWS::Region}.amazonaws.com/id/${oidcNo}:sub": "system:serviceaccount:kube-system:cluster-autoscaler"
                        }
                    }
                }
            ]
          }'
        - oidcNo: !Select [0, !Split [".", !Select [1, !Split ["//", !GetAtt EksCluster.Endpoint]]]]
      ManagedPolicyArns:
      - !Ref EksAutoscalerPolicy

Answer 1

檢查你的縮進。 根據文檔，Sub function 應該像這樣縮進：

Fn::Sub:
  - String
  - Var1Name: Var1Value
    Var2Name: Var2Value