我试图获得一个简单的SAM模板,使用!FindInMap内部函数“动态”填充环境变量 . 我已经按照许多例子,包括AWS的文档,没有任何运气 . 由于某种原因,即使一切看起来都是正确的,该函数也不会使用它来填充环境变量 . 它只是将变量设置为空字符串 .
您可以从下面的代码中看到我在其中使用了!Ref函数,但是尝试了硬编码函数的参数而没有任何运气 . 您还会注意到该函数位于 Global
部分,您可能认为它在那里而不是函数环境,但我也注意到我正在填充一个名为 STAGE
的环境变量,该变量正常工作并将其设置为 "local"
.
我正在通过运行 sam start local-api
并在响应中输出环境变量来测试该函数 .
任何建议都会非常有帮助 .
AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: "Test Server"
Parameters:
Environment:
Type: String
Default: local
AllowedValues:
- local
- test
- prod
Mappings:
EnvParams:
local:
stage: "local"
databaseUrl: "mongodb://localhost:32768/test"
Globals:
Function:
Timeout: 500
Runtime: nodejs8.10
Environment:
Variables:
STAGE: !Ref Environment
DB_URL: !FindInMap [EnvParams, !Ref Environment, databaseUrl]
Resources:
ArticlesGetFunction:
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: src/articles/
Handler: index.getById
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:
Path: /api/article/
Method: get
Outputs:
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
1 回答
看起来像
!FindInMap
isn 't supported in local debugging yet. Here'是相关的GitHub问题:https://github.com/awslabs/aws-sam-cli/issues/476要在SAM CLI中设置和测试环境变量,可以使用
--env-vars
选项 . 通过CloudFormation部署时也支持!FindInMap
,您可以通过部署简单的Lambda函数并针对它运行测试查询来测试此功能 .