@incdevco/framework/aws/cloud-formation/templates/lambda/function/stack.yaml

node.js lambda framework

AWSTemplateFormatVersion: '2010-09-09'
Description: 'lambda function'
Parameters:
  AlarmActionsArn: 
    Description: 'arn for the alarms to notify when in alarm state'
    Type: 'String'
  CodeS3Bucket:
    Description: 'bucket where code package is stored'
    Type: 'String'
  CodeS3ObjectKey:
    Description: 'key for code package in bucket'
    Type: 'String'
  CodeS3ObjectVersion:
    Description: 'version of the code package to use'
    Type: 'String'
  DeadLetterQueueArn: 
    Description: 'arn of the queue to use for dead letter queue'
    Type: 'String'
  Description:
    Default: ''
    Description: 'this will be the functions description'
    Type: 'String'
  DurationAlarmPeriod: 
    Default: 300
    Description: 'Period for the duration alarm'
    Type: 'Number'
  DurationAlarmThreshold: 
    Default: 150000.0
    Description: 'Threshold in milliseconds for the duration alarm'
    Type: 'Number'
  EventLogArn:
    Default: ''
    Description: 'arn for the event log log subscription'
    Type: 'String'
  EventLogSubscriptionRoleArn:
    Default: ''
    Description: 'role arn for the log subscription'
    Type: 'String'
  Handler:
    Default: 'index.handler'
    Description: 'lambda function handler name'
    Type: 'String'
  InsufficientDataActionsArn:
    Default: ''
    Description: 'arn for insufficient data actions'
    Type: 'String'
  InvocationAlarmPeriod:
    Default: 300
    Description: 'period in seconds for invocation alarm'
    Type: 'Number'
  InvocationAlarmThreshold:
    Default: 3.0
    Description: 'Threshold for invocation alarm'
    Type: 'Number'
  MemorySize:
    Default: 128
    Type: 'Number'
  OkActionsArn:
    Default: '',
    Description: 'arn for okay actions'
    Type: 'String'
  RoleArn: 
    Description: 'role arn for lambda function'
    Type: 'String'
  Runtime:
    Default: 'nodejs6.10'
    Description: 'function run time'
    Type: 'String'
  Timeout: 
    Default: '120'
    Description: 'timeout for lambda function in seconds'
    Type: 'String'
Outputs: 
  FunctionArn: 
    Value: 
      !GetAtt: Function.Arn
  FunctionName:
    Value:
      !Ref: Function
Conditions:
  HasDeadLetterQueue: 
    !Not: [!Equals: ['', !Ref DeadLetterQueueArn]]
  HasEventLog:
    !Not: [!Equals: ['', !Ref EventLogArn]]
  HasInsufficientDataActions:
    !Not: [!Equals: ['', !Ref InsufficientDataActionsArn]]
  HasOkActions:
    !Not: [!Equals: ['', !Ref OkActionsArn]]
Resources:
  DurationAlarm: 
    Type: 'AWS::CloudWatch::Alarm'
    Properties: 
      ActionsEnabled: true
      AlarmActions:
        !Ref AlarmActionsArn
      AlarmDescription: 'Will notify when this lambda function is lasting longer than expected.'
      ComparisonOperator: 'GreaterThanOrEqualToThreshold'
      Dimensions: 
        - Name: 'FunctionName'
          Value: 
            !Ref Function
      EvaluationPeriods: 1
      InsufficientDataActions:
        - !If ['HasInsufficientDataActions', !Ref InsufficientDataActionsArn, !Ref 'AWS::NoValue']
      MetricName: 'Duration'
      Namespace: 'AWS/Lambda'
      OkActions:
        - !If ['HasOkActions', !Ref OkActionsArn, !Ref 'AWS::NoValue']
      Period: 
        !Ref DurationAlarmPeriod
      Statistic: 'Sum'
      Threshold: 
        !Ref DurationAlarmThreshold
      Unit: 'Milliseconds'
  Function: 
    Type: 'AWS::Lambda::Function'
    Properties: 
      Code: 
        S3Bucket:
          !Ref CodeS3Bucket
        S3Key:
          !Ref CodeS3ObjectKey
        S3ObjectVersion:
          !Ref CodeS3ObjectVersion
      DeadLetterConfig:
        TargetArn: 
          !If ['HasDeadLetterQueue', !Ref DeadLetterQueueArn, !Ref 'AWS::NoValue']
      Description:
        !Ref Description
      Handler:
        !Ref Handler
      MemorySize:
        !Ref MemorySize
      Role:
        !Ref RoleArn
      RunTime:
        !Ref Runtime
      Timeout:
        !Ref Timeout
  InvocationAlarm: 
    Type: 'AWS::CloudWatch::Alarm'
    Properties: 
      ActionsEnabled: true
      AlarmActions:
        !Ref AlarmActionsArn
      AlarmDescription: 'Will notify when this lambda function is being invoked more than expected.'
      ComparisonOperator: 'GreaterThanOrEqualToThreshold'
      Dimensions: 
        - Name: 'FunctionName'
          Value: 
            !Ref Function
      EvaluationPeriods: 1
      InsufficientDataActions:
        - !If ['HasInsufficientDataActions', !Ref InsufficientDataActionsArn, !Ref 'AWS::NoValue']
      MetricName: 'Invocation'
      Namespace: 'AWS/Lambda'
      OkActions:
        - !If ['HasOkActions', !Ref OkActionsArn, !Ref 'AWS::NoValue']
      Period: 
        !Ref DurationAlarmPeriod
      Statistic: 'Sum'
      Threshold: 
        !Ref DurationAlarmThreshold
      Unit: 'Count'
  LogGroup: 
    Type: 'AWS::Logs::LogGroup'
    Properties:
      LogGroupName: 
        !Join ['', ['/aws/lambda/', !Ref Function]]
      RetentionInDays: 14
  EventLogSubscriptionFilter:
    Type: 'AWS::Logs::SubscriptionFilter'
    Properties:
      DestinationArn: 
        !Ref EventLogArn
      FilterPattern: 'original event'
      LogGroupName:
        !Join ['', ['/aws/lambda/', !Ref Function]]
      RoleArn:
        !Ref EventLogSubscriptionRoleArn