cloudformation.yml

AWSTemplateFormatVersion: '2010-09-09'
Parameters:
  DeployBucketName:
    Type: String
    Default: mke-trash-pickup

  DeployKeyName:
    Type: String
    Default: mke-trash-pickup.zip

  LambdaHandler:
    Type: String
    Default: refusereminder.lambda_handler

  SNSTopicName:
    Type: String
    Default: mke-trash-pickup

  Frequency:
    Type: String
    Default: '12 hours'
    Description: 'See here for details: http://docs.aws.amazon.com/lambda/latest/dg/tutorial-scheduled-events-schedule-expressions.html'

  AddressNumber:
    Type: String

  AddressDirection:
    Type: String
    AllowedValues:
      - N
      - S
      - E
      - W

  StreetName:
    Type: String

  StreetType:
    Type: String
    Default: ST
    AllowedValues:
      - AV
      - BL
      - CR
      - CT
      - DR
      - LA
      - PK
      - PL
      - RD
      - SQ
      - ST
      - TR
      - WY

Resources:
  DataBucket:
    Type: 'AWS::S3::Bucket'

  LambdaExecutionRole:
    Type: 'AWS::IAM::Role'
    Properties:
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
        - Effect: Allow
          Principal:
            Service:
            - lambda.amazonaws.com
          Action:
          - sts:AssumeRole
      Path: '/'
      Policies:
      - PolicyName: root
        PolicyDocument:
          Version: '2012-10-17'
          Statement:
          - Effect: Allow
            Action:
            - logs:*
            Resource: arn:aws:logs:*:*:*
          - Effect: Allow
            Action:
            - s3:GetObject
            - s3:PutObject
            - s3:PutObjectAcl
            Resource:
              'Fn::Join':
                - ''
                - - 'arn:aws:s3:::'
                  - Ref: DataBucket
                  - '/*'
          - Effect: Allow
            Action:
            - sns:Publish
            Resource:
              Ref: SNSTopic

  LambdaJob:
    Type: 'AWS::Lambda::Function'
    Properties:
      Handler:
        Ref: LambdaHandler
      Role:
        'Fn::GetAtt':
          - LambdaExecutionRole
          - Arn
      Code:
        S3Bucket:
          Ref: DeployBucketName
        S3Key:
          Ref: DeployKeyName
      Runtime: python3.6
      Timeout: 45

  SNSTopic:
    Type: 'AWS::SNS::Topic'
    Properties:
      TopicName:
        Ref: SNSTopicName

  EventRule:
    Type: 'AWS::Events::Rule'
    Properties:
      ScheduleExpression: "rate(12 hours)"
      ScheduleExpression:
        'Fn::Join':
          - ''
          - - 'rate('
            - Ref: Frequency
            - ')'

      Targets:
        - Id: GarbageCheckScheduler
          Arn:
            'Fn::GetAtt':
              - LambdaJob
              - Arn
          Input:
            'Fn::Join':
              - ''
              - - '{'
                - '"s3_bucket": "'
                - Ref: DataBucket
                - '", "house_number": "'
                - Ref: AddressNumber
                - '", "direction": "'
                - Ref: AddressDirection
                - '", "street_name": "'
                - Ref: StreetName
                - '", "street_type": "'
                - Ref: StreetType
                - '" }'

  InvokeLambdaPermission:
    Type: 'AWS::Lambda::Permission'
    Properties:
      FunctionName:
        'Fn::GetAtt':
          - LambdaJob
          - Arn
      Action: 'lambda:InvokeFunction'
      Principal: events.amazonaws.com
      SourceArn:
        'Fn::GetAtt':
          - EventRule
          - Arn