cloudformation-template.yml

AWSTemplateFormatVersion : '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: Lambda to count up by IoT Button request.

Parameters:
  ProjectName:
    Type: String
    Default: IotButtonCounterProject
    Description: IoT1Click Project Name
  PlacementName:
    Type: String
    Default: IotButtonCounterPlacement
    Description: IoT1Click Placement Name
  DeviceDsn:
    Type: String
    Description: Device DSN
    NoEcho: true
  FunctionName:
    Type: String
    Default: IotButtonCounterFunction
    Description: Lambda Function Name
  SlackChannel:
    Type: String
    Default: develop
    Description: Slack Webhook Destination Channel
  SlackWebhookUrl:
    Type: String
    Description: Slack Webhook URL
    NoEcho: true
  DynamoDbTableName:
    Type: String
    Default: IotButtonCounter
    Description: DynamoDB Table Name

Resources:
  LambdaExecutionRole:
    Type: AWS::IAM::Role
    Properties:
      Policies:
        - PolicyName: IotButtonCounterPolicy
          PolicyDocument:
            Version: '2012-10-17'
            Statement:
            - Effect: Allow
              Action:
              - dynamodb:PutItem
              - dynamodb:GetItem
              - logs:CreateLogGroup
              - logs:CreateLogStream
              - logs:PutLogEvents
              Resource: '*'
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
          - Sid: ''
            Effect: Allow
            Principal:
              Service: lambda.amazonaws.com
            Action: sts:AssumeRole
  IotButtonCounterFunction:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: !Ref FunctionName
      Handler: bin/main
      Runtime: go1.x
      CodeUri: build/handler.zip
      Timeout: 60
      MemorySize: 128
      Role: !GetAtt LambdaExecutionRole.Arn
      Environment:
        Variables:
          SLACK_WEBHOOK_URL: !Ref SlackWebhookUrl
          SLACK_CHANNEL: !Ref SlackChannel
          TABLE_NAME: !Ref DynamoDbTableName
  LambdaInvokePermission:
    Type: AWS::Lambda::Permission
    Properties:
      FunctionName: !GetAtt IotButtonCounterFunction.Arn
      Action: lambda:InvokeFunction
      Principal: iot1click.amazonaws.com
  IotButtonCounterProject:
    Type: AWS::IoT1Click::Project
    Properties:
      ProjectName: !Ref ProjectName
      PlacementTemplate:
        DefaultAttributes:
          DeviceNo: 0
        DeviceTemplates:
          IotButtonCounterTemplate:
            DeviceType: button
            CallbackOverrides:
              onClickCallback: !GetAtt IotButtonCounterFunction.Arn
  #IotButtonDevice:
  #  Type: AWS::IoT1Click::Device
  #  Properties:
  #    DeviceId: !Ref DeviceDsn
  #    Enabled: True
  IotButtonCounterPlacement:
    Type: AWS::IoT1Click::Placement
    Properties:
      ProjectName: !Ref IotButtonCounterProject
      PlacementName: !Ref PlacementName
      Attributes:
        DeviceNo: 1
      AssociatedDevices:
        IotButtonCounterTemplate: !Ref DeviceDsn
  IotButtonCounterTable:
    Type: AWS::DynamoDB::Table
    Properties:
      AttributeDefinitions:
        - AttributeName: id
          AttributeType: S
      KeySchema:
        - AttributeName: id
          KeyType: HASH
      ProvisionedThroughput:
        ReadCapacityUnits: 1
        WriteCapacityUnits: 1
      TableName: !Ref DynamoDbTableName

Outputs:
  ProjectId:
    Value: !Ref IotButtonCounterProject
  FunctionName:
    Value: !Ref IotButtonCounterFunction
  TableName:
    Value: !Ref IotButtonCounterTable