AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  lambda-pc-test

  Sample SAM Template for lambda-pc-test

# More info about Globals: https://github.com/awslabs/serverless-application-model/blob/master/docs/globals.rst
Globals:
  Function:
    Timeout: 20

Resources:
  PCTestFunction:
    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: PCTestFunction
      Handler: pctest.App::handleRequest
      Runtime: java8
      MemorySize: 512
      Environment: # More info about Env Vars: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#environment-object
        Variables:
          ENVIRONMENT: test
      Events:
        PCTest:
          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: /pctest
            Method: get
      AutoPublishAlias: live
      DeploymentPreference:
        Type: AllAtOnce # Or Canary10Percent5Minutes, Linear10PercentEvery1Minute, ...
        ProvisionedConcurrencyConfig:
          ProvisionedConcurrentExecutions: 1

  MyScalableTarget:
    Type: AWS::ApplicationAutoScaling::ScalableTarget
    Properties:
      MaxCapacity: 100
      MinCapacity: 1
      ResourceId: !Sub function:${PCTestFunction}:live # You need to specify an alis or version here
      RoleARN: !Sub arn:aws:iam::${AWS::AccountId}:role/aws-service-role/lambda.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_LambdaConcurrency
      ScalableDimension: lambda:function:ProvisionedConcurrency
      ServiceNamespace: lambda
    DependsOn: PCTestFunctionAliaslive # This is your function logical ID + "Alias" + what you use for AutoPublishAlias

  MyTargetTrackingScalingPolicy:
    Type: AWS::ApplicationAutoScaling::ScalingPolicy
    Properties:
      PolicyName: utilization
      PolicyType: TargetTrackingScaling
      ScalingTargetId: !Ref MyScalableTarget
      TargetTrackingScalingPolicyConfiguration:
        TargetValue: 0.70 # Any value between 0.1 and 0.9 can be used here
        PredefinedMetricSpecification:
          PredefinedMetricType: LambdaProvisionedConcurrencyUtilization

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
  PCTestApi:
    Description: "API Gateway endpoint URL for Prod stage for Hello World function"
    Value: !Sub "https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/hello/"
  PCTestFunction:
    Description: "Hello World Lambda Function ARN"
    Value: !GetAtt PCTestFunction.Arn
  PCTestFunctionIamRole:
    Description: "Implicit IAM Role created for Hello World function"
    Value: !GetAtt PCTestFunction.Arn