AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: Lambda AppConfig Extension Demo
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#  Parameters & Globals                                                  #
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Parameters: 
  AppConfigARN: 
    Type: String
    Default: 'arn:aws:lambda:us-east-1:027255383542:layer:AWS-AppConfig-Extension:1'
  AppConfigProfile: 
    Type: String
    Default: DemoExtensionApplication/Production/LoggingLevel/LogLevel
Globals:
  Function:
    Tracing: Active
    Tags:
      Application: AppConfigDemoExtension
Resources:
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#  Lambda functions                                                      #
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  Function1:
    Type: AWS::Serverless::Function
    Properties:
      Description: Lambda function that retrieves AppConfig configuration settings using Lambda extensions.
      Runtime: nodejs12.x
      Handler: src/AppConfigExtensionDemoFunction.handler
      Layers:
        - !Ref AppConfigARN
      MemorySize: 128
      Timeout: 100
      Environment:
        Variables:
          APPCONFIG_PROFILE:
            Ref: AppConfigProfile
      Policies:
      - Statement:
          - Effect: Allow
            Resource:
              - !Sub 'arn:aws:appconfig:${AWS::Region}:${AWS::AccountId}:application/${AppConfigApplication}'
              - !Sub 'arn:aws:appconfig:${AWS::Region}:${AWS::AccountId}:application/${AppConfigApplication}/environment/${AppConfigEnvironment}'
              - !Sub 'arn:aws:appconfig:${AWS::Region}:${AWS::AccountId}:application/${AppConfigApplication}/configurationprofile/${AppConfigConfigurationProfile}'
            Action:
              - appconfig:GetConfiguration
  Function2:
    Type: AWS::Serverless::Function
    Properties:
      Description: Lambda function that retrieves AppConfig configuration settings using Lambda extensions.
      Runtime: nodejs12.x
      Handler: src/AppConfigExtensionDemoFunction.handler
      Layers:
        - !Ref AppConfigARN
      MemorySize: 128
      Timeout: 100
      Environment:
        Variables:
          APPCONFIG_PROFILE:
            Ref: AppConfigProfile
      Policies:
      - Statement:
          - Effect: Allow
            Resource:
              - !Sub 'arn:aws:appconfig:${AWS::Region}:${AWS::AccountId}:application/${AppConfigApplication}'
              - !Sub 'arn:aws:appconfig:${AWS::Region}:${AWS::AccountId}:application/${AppConfigApplication}/environment/${AppConfigEnvironment}'
              - !Sub 'arn:aws:appconfig:${AWS::Region}:${AWS::AccountId}:application/${AppConfigApplication}/configurationprofile/${AppConfigConfigurationProfile}'
            Action:
              - appconfig:GetConfiguration
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#  AppConfig Resources                                                   #
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  AppConfigApplication:
    Type: AWS::AppConfig::Application
    Properties: 
      Name: DemoExtensionApplication
  AppConfigEnvironment:
    Type: AWS::AppConfig::Environment
    Properties: 
      Name: 'Production'
      ApplicationId: 
        Ref: AppConfigApplication
  AppConfigConfigurationProfile:
    Type: AWS::AppConfig::ConfigurationProfile
    Properties: 
      Name: 'LoggingLevel'
      ApplicationId: 
        Ref: AppConfigApplication
      LocationUri: "hosted"
  AppConfigHostedConfigurationVersion:
    Type: AWS::AppConfig::HostedConfigurationVersion
    Properties: 
      ApplicationId: 
        Ref: AppConfigApplication
      ConfigurationProfileId: 
        Ref: AppConfigConfigurationProfile
      Content: '{"loglevel": "normal"}'
      ContentType: application/json
  AppConfigDeployment:
    Type: AWS::AppConfig::Deployment
    Properties: 
      ApplicationId: 
        Ref: AppConfigApplication
      ConfigurationProfileId: 
        Ref: AppConfigConfigurationProfile
      ConfigurationVersion:
        Ref: AppConfigHostedConfigurationVersion
      DeploymentStrategyId:
        Ref: DeploymentStrategy
      EnvironmentId:
        Ref: AppConfigEnvironment
  DeploymentStrategy:
    Type: AWS::AppConfig::DeploymentStrategy
    Properties: 
      Name: "AllAtOnce"
      DeploymentDurationInMinutes: 0
      FinalBakeTimeInMinutes: 0
      GrowthFactor: 100
      GrowthType: LINEAR
      ReplicateTo: NONE
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#  OUTPUTS                                                               #
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Outputs:
  Function1:
    Value: !Ref Function1
    Description: AWSAppConfig Extension Demo Function1
  Function2:
    Value: !Ref Function2
    Description: AWSAppConfig Extension Demo Function2