在SAM模板中指定多个API阶段和Lambda别名，定义单个AWS::Serverless::Function

Question

我的目标是，我试图编写一个(单一) SAM模板，以获得由Api事件触发的Lambda函数。

我希望有多个API阶段(比如"dev“、”the“、"prod")，我希望每个阶段都映射到同名的Lambda别名上。

我不希望在每个部署中生成一个新的lambda版本，我希望手动设置lambda版本供每个lambda别名使用。当然，"dev“别名的意思是指向$LATEST代码版本。

我尝试了什么，我得到了什么，

我修改了经典的"hello_world“模板，如下所示。现在，当第一次部署(比方说到"dev")时，一切似乎都像预期的那样正常工作。但是，如果我试图部署到“测试”阶段，那么这个新阶段的API就会响应，而"dev“的API就会停止响应。

我遗漏了什么？

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

  Sample SAM Template for zzzz

# More info about Globals: https://github.com/awslabs/serverless-application-model/blob/master/docs/globals.rst
Globals:
  Function:
    Timeout: 3

Parameters:
  StageAliasName:
    Description: stage / alias name to be used in this deploy
    Type: String
    AllowedValues:
      - prod
      - stage
      - dev
      - v1
    Default: dev

Resources:
  ApiGatewayApi:
    Type: AWS::Serverless::Api
    Properties:
      StageName: !Ref StageAliasName

  HelloWorldFunction:
    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: hello_world/
      Handler: app.lambda_handler
      Runtime: python3.8
      AutoPublishAlias: !Ref StageAliasName
      FunctionName: zzz
      Environment:
        Variables:
          stage: !Ref StageAliasName
      Events:
        HelloWorld:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            RestApiId: !Ref ApiGatewayApi
            Path: /hello
            Method: GET
#            Auth:
#              ApiKeyRequired: true



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 Hello World function"
#    Value: !Sub "https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/hello/"
  HelloWorldFunction:
    Description: "Hello World Lambda Function ARN"
    Value: !GetAtt HelloWorldFunction.Arn
  HelloWorldFunctionIamRole:
    Description: "Implicit IAM Role created for Hello World function"
    Value: !GetAtt HelloWorldFunctionRole.Arn

Answer 1

我和你有同样的问题，发现了这个问题：https://jun711.github.io/aws/deploy-api-gateway-to-multiple-stage-when-aws-sam-replaces-previous-stages/。看起来SAM取代了以前的阶段。

这个六月的家伙做了一些手动的步骤，使它工作。知道它能工作是很好的，但是我想我要用ansible来为不同的环境模板出不同版本的模板，然后再运行它。