CloudFormation Stack Type: 'AWS::IAM::Role'-CodePudding

I have a cloudformation template like this, to create a role to launch EKS

---
AWSTemplateFormatVersion: '2010-09-09'
Description: 'moba production'

Parameters:
  EKSIAMRoleName:
    Type: String
    Description: The name of the IAM role for the EKS service to assume.
Resources:
  EKSIAMRole:
    Type: 'AWS::IAM::Role'
    Properties:
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Effect: Allow
        Principal:
          Service:
            - eks.amazonaws.com
        Action:
          - 'sts:AssumeRole'
      RoleName: !Ref EKSIAMRoleName
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/AmazonEKSClusterPolicy
        - arn:aws:iam::aws:policy/AmazonEKSServicePolicy
Outputs:
  EKSIAMRole:
    Description: EKSIAMRole
    Value: !Ref EKSIAMRole

But I got this message Missing required field Principal, please help to clue to fix it, thanks

Missing required field Principal (Service: AmazonIdentityManagement; Status Code: 400; Error Code: MalformedPolicyDocument; Request ID: af18b2eb-06b0-474e-82bc-b80505f544fd; Proxy: null)

CodePudding user response：

You have incorrect indentation. It should be:

---
AWSTemplateFormatVersion: '2010-09-09'
Description: 'moba production'

Parameters:
  EKSIAMRoleName:
    Type: String
    Description: The name of the IAM role for the EKS service to assume.
Resources:
  EKSIAMRole:
    Type: 'AWS::IAM::Role'
    Properties:
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Effect: Allow
            Principal:
                Service:
                    - eks.amazonaws.com
            Action:
            - 'sts:AssumeRole'
      RoleName: !Ref EKSIAMRoleName
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/AmazonEKSClusterPolicy
        - arn:aws:iam::aws:policy/AmazonEKSServicePolicy
Outputs:
  EKSIAMRole:
    Description: EKSIAMRole
    Value: !Ref EKSIAMRole