在 Cloudformation 中使用 IAM 角色保护 APIGW

Question

最近我一直在研究独立的云形成模板，它将创建 REST API，通过 API 网关和 lambda 挂钩执行所有业务逻辑。

现在它是公开的，任何人都可以调用 APIGW url 并获得响应。我想让它变得安全，以便只有某些具有 IAM 角色的人才能调用 APIGW。

如果有任何其他更好的方法来确保相同，任何建议都表示赞赏。

当前云形态

AWSTemplateFormatVersion: 2010-09-09
Description: My API Gateway and Lambda function

Parameters:
  apiGatewayName:
    Type: String
    Default: final-apigw-2
  apiGatewayStageName:
    Type: String
    Default: v1
  apiGatewayHTTPMethod:
    Type: String
    Default: ANY
  lambdaFunctionName:
    Type: String
    AllowedPattern: "[a-zA-Z0-9]+[a-zA-Z0-9-]+[a-zA-Z0-9]+"
    Default: final-lambda-2

Resources:
  apiGateway:
    Type: AWS::ApiGateway::RestApi
    Properties:
      Description: Example API Gateway
      EndpointConfiguration:
        Types:
          - REGIONAL
      Name: !Ref apiGatewayName

  apiGatewayLambdaResource:
    Type: 'AWS::ApiGateway::Resource'
    Properties:
      RestApiId: !Ref apiGateway
      PathPart: '{proxy+}'
      ParentId: !GetAtt apiGateway.RootResourceId

  apiGatewayLambdaResourceMethod:
    Type: 'AWS::ApiGateway::Method'
    Properties:
      AuthorizationType: NONE
      RestApiId: !Ref apiGateway
      ResourceId: !Ref apiGatewayLambdaResource
      HttpMethod: ANY
      Integration:
        Type: AWS_PROXY
        IntegrationHttpMethod: POST
        Uri: !Sub 
          - >-
            arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${lambdaArn}/invocations
          - lambdaArn: !GetAtt lambdaFunction.Arn
        IntegrationResponses:
          - ResponseTemplates:
              application/json: ""
            StatusCode: 200
        PassthroughBehavior: WHEN_NO_TEMPLATES

  apiGatewayDeployment:
    Type: AWS::ApiGateway::Deployment
    DependsOn:
      - apiGatewayLambdaResourceMethod
    Properties:
      RestApiId: !Ref apiGateway
      StageName: !Ref apiGatewayStageName

  lambdaFunction:
    Type: AWS::Lambda::Function
    Properties:
      Code:
        ZipFile: |
          exports.handler = async (event) => {
              // TODO implement
              const response = {
                  statusCode: 200,
                  body: JSON.stringify(event),
              };
              return response;
          };
      Description: Example Lambda function
      FunctionName: !Ref lambdaFunctionName
      Handler: index.handler
      Role: !GetAtt lambdaIAMRole.Arn
      Runtime: nodejs12.x

  lambdaApiGatewayInvoke:
    Type: AWS::Lambda::Permission
    Properties:
      Action: lambda:InvokeFunction
      FunctionName: !GetAtt lambdaFunction.Arn
      Principal: apigateway.amazonaws.com
      # note: if route *not* at API Gateway root, `SourceArn` would take the form of:
      #               arn:aws:execute-api:${AWS::Region}:${AWS::AccountId}:${apiGateway}/${apiGatewayStageName}/${apiGatewayHTTPMethod}/PATH_PART
      SourceArn: !Sub arn:aws:execute-api:${AWS::Region}:${AWS::AccountId}:${apiGateway}/${apiGatewayStageName}/${apiGatewayHTTPMethod}/*

  lambdaIAMRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Action:
              - sts:AssumeRole
            Effect: Allow
            Principal:
              Service:
                - lambda.amazonaws.com
      Policies:
        - PolicyDocument:
            Version: 2012-10-17
            Statement:
              - Action:
                  - logs:CreateLogGroup
                  - logs:CreateLogStream
                  - logs:PutLogEvents
                Effect: Allow
                Resource:
                  - !Sub arn:aws:logs:${AWS::Region}:${AWS::AccountId}:log-group:/aws/lambda/${lambdaFunctionName}:*
          PolicyName: lambda

  lambdaLogGroup:
    Type: AWS::Logs::LogGroup
    Properties:
      LogGroupName: !Sub /aws/lambda/${lambdaFunctionName}
      RetentionInDays: 90

Outputs:
  apiGatewayInvokeURL:
    Value: !Sub https://${apiGateway}.execute-api.${AWS::Region}.amazonaws.com/${apiGatewayStageName}

  lambdaArn:
    Value: !GetAtt lambdaFunction.Arn

更新

找到这个文档：https://docs.aws.amazon.com/apigateway/api-reference/resource/method/

授权类型

方法的授权类型。有效值为 NONE 用于开放访问，AWS_IAM 用于使用 AWS IAM 权限，CUSTOM 用于使用 自定义授权人，或 COGNITO_USER_POOLS 用于使用 Cognito 用户 游泳池。

我将授权类型添加为 AWS_IAM，但我仍然能够调用 APIGW 端点，我缺少任何东西

Answer 1

添加authorizationType : AWS_IAM 只是使它工作，显然cloudformation 模板没有更新。不得不手动删除堆栈并重新上传对我有用