AWSTemplateFormatVersion: 2010-09-09
Transform: AWS::Serverless-2016-10-31
Description: >
  kinesis-stream-logs-extension-demo
  
  Sample SAM Template for kinesis-stream-logs-extension-demo

Parameters:
  KinesisStreamName:
    Type: String
    Default: lambda-logs-direct-kinesis-no-cloudwatch
    Description: "Kinesis stream name"
  KinesisRetentionHours:
    Type: Number
    Default: 24
    MinValue: 1
    MaxValue: 48
    Description: "How long Kinesis will retain the data for"
  KinesisShardCount:
    Type: Number
    Default: 1
    MinValue: 1
    MaxValue: 2
    Description: "Shard size of the kinesis stream"

# More info about Globals: https://github.com/awslabs/serverless-application-model/blob/master/docs/globals.rst
Globals:
  Function:
    Timeout: 120
    MemorySize: 1024

Resources:
  KinesisStreamLogsApiExtensionLayer:
    Type: AWS::Serverless::LayerVersion
    Metadata:
      BuildMethod: makefile
    Properties:
      LayerName: kinesis-stream-logs-extension-demo
      Description: Send logs to kinesis stream using logs API Extension in Go
      ContentUri: .
      CompatibleRuntimes:
      - nodejs12.x
      - python3.8
      - java11
      - dotnetcore3.1
      LicenseInfo: MIT-0
      RetentionPolicy: Delete

  HelloWorldFunction:
    Type: AWS::Serverless::Function
    DependsOn:
      - KinesisStream
    Properties:
      FunctionName: kinesis-stream-logs-extension-demo-function
      CodeUri: hello-world/
      Handler: app.lambdaHandler
      Runtime: nodejs12.x
      Layers:
      - !Ref KinesisStreamLogsApiExtensionLayer
      Environment:
        Variables:
          AWS_KINESIS_STREAM_NAME: !Ref KinesisStreamName
      Policies:
        - Statement:
          - Sid: KinesisStreamFullAccess
            Effect: Allow
            Action:
              - kinesis:PutRecord*
              - kinesis:Get*
              - kinesis:List*
              - kinesis:Describe*
            Resource: !GetAtt KinesisStream.Arn
          - Sid: CloudWatchLogsDeny
            Effect: Deny
            Action:
              - logs:CreateLogGroup
              - logs:CreateLogStream
              - logs:PutLogEvents
            Resource: arn:aws:logs:*:*:*

  KinesisStream:
    Type: AWS::Kinesis::Stream
    Properties: 
      Name: !Ref KinesisStreamName
      RetentionPeriodHours: !Ref KinesisRetentionHours
      ShardCount: !Ref KinesisShardCount

Outputs:
  KinesisStreamLogsApiExtensionLayer:
    Description: Kinesis Log emiter Lambda Extension Layer Version ARN
    Value: !Ref KinesisStreamLogsApiExtensionLayer
  HelloWorldFunction:
    Description: First Lambda Function ARN
    Value: !GetAtt HelloWorldFunction.Arn