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amazon-web-services - 如何为所有 CloudFormation 嵌套堆栈保留相同的 API 网关 URL？

转载 作者：行者123 更新时间：2023-12-03 07:23:11 26 4
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我正在使用 AWS Lambda、API Gateway 和 CloudFormation 开发 REST API。我达到了 Cloudformation 500 资源限制，因此我不得不使用嵌套堆栈。以下是我尝试过的。

模板.yaml

    AWSTemplateFormatVersion: '2010-09-09'
    Transform: AWS::Serverless-2016-10-31
    Description: >
      aws-restapi
    
      Sample SAM Template for aws-restapi
      
    # More info about Globals: https://github.com/awslabs/serverless-application-model/blob/master/docs/globals.rst
    Globals:
      Function:
        Timeout: 5
        VpcConfig:
            SecurityGroupIds:
              - sg-041f2459dcd921e8e
            SubnetIds:
              - subnet-0381db2d
              - subnet-c4d5c4cb
              - subnet-af5c03c8
              - subnet-7487df28
              - subnet-d139d69c
              - subnet-e9e88bd7
    
    Resources:
      GetAllAccountingTypesFunction:
        Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
        Properties:
          CodeUri: aws-restapi/
          Handler: source/accounting-types/accountingtypes-getall.getallaccountingtypes
          Runtime: nodejs14.x
          Events:
            GetAllAccountingTypesAPIEvent:
              Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
              Properties:
                Path: /accountingtypes/getall
                Method: get
      GetAccountingTypeByIDFunction:
        Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
        Properties:
          CodeUri: aws-restapi/
          Handler: source/accounting-types/accountingtypes-byid.getbyid
          Runtime: nodejs14.x
          Events:
            GetAllAccountingTypesAPIEvent:
              Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
              Properties:
                Path: /accountingtypes/getbyid
                Method: get
       # DependsOn: GetAllAccountingTypesFunction
    
      NestedStack:
        Type: AWS::CloudFormation::Stack
        Properties:
          TemplateURL: template_user.yaml

NestedStackTwo:
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: template_two.yaml
      
    
      LambdaRole:
        Type: 'AWS::IAM::Role'
        Properties:
          AssumeRolePolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Principal:
                  Service:
                    - lambda.amazonaws.com
                Action:
                  - 'sts:AssumeRole'
          Path: /
          ManagedPolicyArns:
            - arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole
          Policies:
            - PolicyName: root
              PolicyDocument:
                Version: "2012-10-17"
                Statement:
                  - Effect: Allow
                    Action:
                      - ec2:DescribeNetworkInterfaces
                      - ec2:CreateNetworkInterface
                      - ec2:DeleteNetworkInterface
                      - ec2:DescribeInstances
                      - ec2:AttachNetworkInterface
                    Resource: '*'
    
    Outputs:
      # ServerlessRestApi is an implicit API created out of Events key under Serverless::Function
      # Find out more about other implicit resources you can reference within SAM
      # https://github.com/awslabs/serverless-application-model/blob/master/docs/internals/generated_resources.rst#api
      HelloWorldApi:
        Description: "API Gateway endpoint URL for Prod stage for functions"
        Value: !Sub "https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/"

template_user.yaml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  aws-restapi

  Sample SAM Template for aws-restapi

    Globals:
      Function:
        Timeout: 5
        VpcConfig:
            SecurityGroupIds:
              - sg-041f2****cd921e8e
            SubnetIds:
              - subnet-03***b2d
              - subnet-c4d***cb
              - subnet-af5***8
              - subnet-74***f28
              - subnet-d139***c
              - subnet-e9***bd7
      
    
    Resources:
      GetUserRoleByIDFunction:
        Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
        Properties:
          CodeUri: aws-restapi/
          Handler: source/user-role/userrole-getbyid.getUserRoleByID
          Runtime: nodejs14.x
          Events: 
            GetUserRoleByIDAPIEvent:
              Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
              Properties:
                Path: /userrole/getbyid
                Method: get
    
      GetUserRoleByUserFunction:
        Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
        Properties:
          CodeUri: aws-restapi/
          Handler: source/user-role/userrole-getbyuser.getUserRoleByUser
          Runtime: nodejs14.x
          Events:
            GetUserRoleByUserAPIEvent:
              Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
              Properties:
                Path: /userrole/getbyuser
                Method: get
       # DependsOn: GetUserRoleByIDFunction
      GetUserRoleByRoleFunction:
        Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
        Properties:
          CodeUri: aws-restapi/
          Handler: source/user-role/userrole-getbyrole.getAllUsersByRole
          Runtime: nodejs14.x
          Events:
            GetUserRoleByRoleAPIEvent:
              Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
              Properties:
                Path: /userrole/getbyrole
                Method: get
        #DependsOn: GetUserRoleByUserFunction
      SaveUserRoleFunction:
        Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
        Properties:
          CodeUri: aws-restapi/
          Handler: source/user-role/userrole-save.saveUserRole
          Runtime: nodejs14.x
          Events:
            SaveUserRoleAPIEvent:
              Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
              Properties:
                Path: /userrole/save
                Method: post
       # DependsOn: GetUserRoleByRoleFunction
      UpdateUserRoleFunction:
        Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
        Properties:
          CodeUri: aws-restapi/
          Handler: source/user-role/userrole-update.updateeUserRole
          Runtime: nodejs14.x
          Events:
            UpdateUserRoleAPIEvent:
              Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
              Properties:
                Path: /userrole/update
                Method: post
        #DependsOn: SaveUserRoleFunction

template_two.yaml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  aws-restapi

  Sample SAM Template for aws-restapi

Globals:
  Function:
    Timeout: 5
    VpcConfig:
        SecurityGroupIds:
          - sg-041f24xxxxd921e8e
        SubnetIds:
          - subnet-0381xxxd
          - subnet-c4dxxxcb
          - subnet-af5xxxc8
          - subnet-748xxx28
          - subnet-d139xxx9c
          - subnet-e9e8xxx7

Resources:
  GetAllPromotionsFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    
    Properties:
      CodeUri: aws-restapi/
      Handler: source/promotions/promotions-getall.getAllPromotions
      Runtime: nodejs14.x
      Events:
        GetAllPromotionsAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /promotions/getall
            Method: get
  SavePromotionsFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    
    Properties:
      CodeUri: aws-restapi/
      Handler: source/promotions/promotions-save.savePromotions
      Runtime: nodejs14.x
      Events:
        SavePromotionsAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /promotions/save
            Method: post
  UpdatePromotionsFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    
    Properties:
      CodeUri: aws-restapi/
      Handler: source/promotions/promotions-update.updatePromotions
      Runtime: nodejs14.x
      Events:
        UpdatePromotionsAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /promotions/update
            Method: post


  GetAllStaticInfoFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    
    Properties:
      CodeUri: aws-restapi/
      Handler: source/static-info/staticinfo-getall.getAllStaticInfo
      Runtime: nodejs14.x
      Events:
        GetAllStaticInfoAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /staticinfo/getall
            Method: get
  SaveStaticInfoFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    
    Properties:
      CodeUri: aws-restapi/
      Handler: source/static-info/staticinfo-save.saveStaticInfo
      Runtime: nodejs14.x
      Events:
        SaveStaticInfoAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /staticinfo/save
            Method: post
  UpdateStaticInfoFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    
    Properties:
      CodeUri: aws-restapi/
      Handler: source/static-info/staticinfo-update.updateStaticInfo
      Runtime: nodejs14.x
      Events:
        UpdateStaticInfoAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /staticinfo/update
            Method: post

这有效，但我注意到 API Gateway 为我创建的每个堆栈分配了不同的 URL。在此示例中，我有两个堆栈，API Gateway 确实创建了 2 个 URL。

  1. template.yaml URL - https://ez5khz***.execute-api.us-east-1.amazonaws.com/Prod/
  2. template_user.yaml URL - https://7imy9b6***.execute-api.us-east-1.amazonaws.com/Prod/。 template_two.yaml URL - https://8awey9b6***.execute-api.us-east-1.amazonaws.com/Prod/

我希望将使用 template.yaml 创建的 URL 应用于所有 lambda 函数，无论它位于哪个嵌套堆栈中。我还计划稍后为此分配一个域.

我怎样才能让它在一个 URL 下工作？

--------------更新--------------------

根据 LRutten 提供的建议，我更新了代码，如下所示。

模板.yaml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  aws-restapi

  Sample SAM Template for aws-restapi
  
# More info about Globals: https://github.com/awslabs/serverless-application-model/blob/master/docs/globals.rst
Globals:
  Function:
    Timeout: 5
    VpcConfig:
        SecurityGroupIds:
          - sg-041f2xxxd921e8e
        SubnetIds:
          - subnet-03xxxb2d
          - subnet-c4dxxxcb

Resources:
  ApiGatewayApi:
    Type: AWS::Serverless::Api
    Properties:
      StageName: prod

  GetAllAccountingTypesFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    Properties:
      CodeUri: aws-restapi/
      Handler: source/accounting-types/accountingtypes-getall.getallaccountingtypes
      Runtime: nodejs14.x
      Events:
        GetAllAccountingTypesAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /accountingtypes/getall
            Method: get
            RestApiId:
              Ref: ApiGatewayApi
  GetAccountingTypeByIDFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    Properties:
      CodeUri: aws-restapi/
      Handler: source/accounting-types/accountingtypes-byid.getbyid
      Runtime: nodejs14.x
      Events:
        GetAllAccountingTypesAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /accountingtypes/getbyid
            Method: get
            RestApiId:
              Ref: ApiGatewayApi
  
  NestedStackTwo:
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: nestedstack.yaml

  LambdaRole:
    Type: 'AWS::IAM::Role'
    Properties:
      AssumeRolePolicyDocument:
        Version: "2012-10-17"
        Statement:
          - Effect: Allow
            Principal:
              Service:
                - lambda.amazonaws.com
            Action:
              - 'sts:AssumeRole'
      Path: /
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole
      Policies:
        - PolicyName: root
          PolicyDocument:
            Version: "2012-10-17"
            Statement:
              - Effect: Allow
                Action:
                  - ec2:DescribeNetworkInterfaces
                  - ec2:CreateNetworkInterface
                  - ec2:DeleteNetworkInterface
                  - ec2:DescribeInstances
                  - ec2:AttachNetworkInterface
                Resource: '*'

Outputs:
  HelloWorldApi:
    Description: "API Gateway endpoint URL for Prod stage for functions"
    Value: !Sub "https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/"

netedstack.yaml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  aws-restapi

  Sample SAM Template for aws-restapi

Globals:
  Function:
    Timeout: 5
    VpcConfig:
        SecurityGroupIds:
          - sg-041f2459dcd921e8e
        SubnetIds:
          - subnet-03xxxx2d
          - subnet-c4dxxxxcb

Parameters:
   ApiId: ApiGatewayApi

Resources:
  GetAllPromotionsFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    Properties:
      CodeUri: aws-restapi/
      Handler: source/promotions/promotions-getall.getAllPromotions
      Runtime: nodejs14.x
      Events:
        GetAllPromotionsAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /promotions/getall
            Method: get
            RestApiId:
              Ref: !Ref ApiId
  SavePromotionsFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    Properties:
      CodeUri: aws-restapi/
      Handler: source/promotions/promotions-save.savePromotions
      Runtime: nodejs14.x
      Events:
        SavePromotionsAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /promotions/save
            Method: post
            RestApiId:
              Ref: !Ref ApiId
  UpdatePromotionsFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    Properties:
      CodeUri: aws-restapi/
      Handler: source/promotions/promotions-update.updatePromotions
      Runtime: nodejs14.x
      Events:
        UpdatePromotionsAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /promotions/update
            Method: post
            RestApiId:
              Ref: !Ref ApiId


  GetAllStaticInfoFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    Properties:
      CodeUri: aws-restapi/
      Handler: source/static-info/staticinfo-getall.getAllStaticInfo
      Runtime: nodejs14.x
      Events:
        GetAllStaticInfoAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /staticinfo/getall
            Method: get
            RestApiId:
              Ref: !Ref ApiId
  SaveStaticInfoFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    Properties:
      CodeUri: aws-restapi/
      Handler: source/static-info/staticinfo-save.saveStaticInfo
      Runtime: nodejs14.x
      Events:
        SaveStaticInfoAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /staticinfo/save
            Method: post
            RestApiId:
              Ref: !Ref ApiId
  UpdateStaticInfoFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    Properties:
      CodeUri: aws-restapi/
      Handler: source/static-info/staticinfo-update.updateStaticInfo
      Runtime: nodejs14.x
      Events:
        UpdateStaticInfoAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /staticinfo/update
            Method: post
            RestApiId:
              Ref: !Ref ApiId

但是，我无法使用 sam build 构建此项目。我收到以下错误。

InvalidSamDocumentException(
samcli.commands.validate.lib.exceptions.InvalidSamDocumentException: [InvalidResourceException('GetAllPromotionsFunction', 'Event with id [GetAllPromotionsAPIEvent] is invalid. Api Event must reference an Api in the same template.')

嵌套堆栈中的所有函数都会生成上述错误。我该如何解决这个问题？

最佳答案

我认为 Marcin 是正确的，因为您可以在顶级堆栈中定义自己的 AWS::Serverless::Api 资源。这比让 SAM 为您做所有事情要花费更多的精力，但它为您提供了您想要的灵活性。

您可以使用简单的 !Ref 将 Api ID 传递给其他嵌套堆栈。

为此，在嵌套堆栈中，您需要一个 ApiId 参数，然后在所有定义的 lambda 中使用该参数:

Parameters:
   ApiId: ....

.....
Resources:
.....
      Events:
        UpdatePromotionsAPIEvent:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /promotions/update
            Method: post
            RestApiId: !Ref ApiId

我自己没有尝试过，但我认为它应该有效？

关于amazon-web-services - 如何为所有 CloudFormation 嵌套堆栈保留相同的 API 网关 URL？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/68948884/

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