serverless.yml

service: mdcloud-serverless
custom: ${file(./config.json)}

provider:
  name: aws
  runtime: nodejs6.10
  memorySize: 128
  timeout: 20
  region: us-east-1
  environment:
    apikey: ${self:custom.apikey}
  iamRoleStatements:
    - Effect: "Allow"
      Action:
        - "s3:*"
      Resource: "*"
    - Effect: "Allow"
      Action:
        - sqs:DeleteMessage
        - sqs:ReceiveMessage
        - sqs:SendMessage
      Resource: "arn:aws:sqs:*:*:${self:custom.sqs}"
    - Effect: "Allow"
      Action:
        - "sns:*"
      Resource: "arn:aws:sns:*:*:${self:custom.snsEmail}"
    - Effect: "Allow"
      Action:
        - "lambda:InvokeFunction"
      Resource:
        - "*"

package:
 exclude:
   - node_modules/aws-sdk/**
   - event_samples/**
   - .vscode/**

functions:
  task:
    handler: task.handler
    name: task
    environment:
      sqs: ${self:custom.sqs}

  scan:
    handler: scan.handler
    name: scan
    environment:
      sqs: ${self:custom.sqs}
    events:
      - s3:
          bucket: ${self:custom.bucket}
          event: s3:ObjectCreated:*

  worker:
    handler: worker.handler
    name: worker
    environment:
      sqs: ${self:custom.sqs}
      lambda: task
    events:
      - schedule: rate(1 minute)
      - sns: ${self:custom.sns}

resources:
  Resources:
    BacklogQueue:
      Type: AWS::SQS::Queue
      Properties:
        QueueName: ${self:custom.sqs}
        MessageRetentionPeriod: '1209600'
        VisibilityTimeout: '60'
        RedrivePolicy:
          deadLetterTargetArn:
            Fn::GetAtt:
            - DeadLetterQueue
            - Arn
          maxReceiveCount: '10'

    DeadLetterQueue:
      Type: AWS::SQS::Queue
      Properties:
        QueueName: ${self:custom.sqs}-dead-letter-queue
        MessageRetentionPeriod: '1209600'

    QueueDepthAlarmOver100:
      Type: AWS::CloudWatch::Alarm
      Properties:
        AlarmDescription: Alarm if queue depth grows beyond 100 messages
        Namespace: AWS/SQS
        MetricName: NumberOfMessagesVisible
        Dimensions:
        - Name: QueueName
          Value: ${self:custom.sqs}
        Statistic: Sum
        Period: '60'
        EvaluationPeriods: '1'
        Threshold: '100'
        ComparisonOperator: GreaterThanOrEqualToThreshold
        AlarmActions:
        - { "Fn::Join" : ["", ["arn:aws:sns:${self:provider.region}:", { "Ref" : "AWS::AccountId" }, ":${self:custom.sns}" ] ]  }

    MailQueue:
      Type: AWS::SNS::Topic
      Properties:
        DisplayName: "Serverless Mail"
        TopicName: ${self:custom.snsEmail}
        Subscription:
          - Endpoint: ${self:custom.mailTo}
            Protocol: "email"