cloudformation-windows-cloudwatch-diskspace-alarms

cloudformation-windows-cloudwatch-diskspace-alarms.yaml

AWSTemplateFormatVersion: '2010-09-09'
Description: Windows CloudWatch Diskspace Alarms
#-------------------------------------------------------------------------------
Parameters:
#-------------------------------------------------------------------------------
  instanceid:
    Description: "Choose an instance id"
    Type: AWS::EC2::Instance::Id

  instancename:
    Description: "Please provide EC2 instance name"
    Type: "String"
    MinLength: '1'
    MaxLength: '50'

  criticalsnsarn:
    Description: "Please provide an ARN of SNS topic - CRITICAL Type"
    Type: "String"

  warningsnsarn:
    Description: "Please provide an ARN of SNS topic - WARNING Type"
    Type: "String"
    
  volume:
    Description: "Provide Disk name (ex.: C:)"
    Type: "String"
    Default: "C:"
    MinLength: '1'
    MaxLength: '5'
#-------------------------------------------------------------------------------
Resources:
#-------------------------------------------------------------------------------
  DiskSpaceWARNING:
    Type: AWS::CloudWatch::Alarm
    DeletionPolicy: Retain
    Properties:
      AlarmDescription: !Sub "${instancename} - ${instanceid} - over 90% of ${volume} Drive space is in use"
      AlarmActions:
      - !Ref warningsnsarn
      OKActions:
      - !Ref warningsnsarn
      MetricName: "LogicalDisk % Free Space"
      Namespace: CWAgent
      Statistic: Average
      Period: '300'
      EvaluationPeriods: '1'
      Threshold: '10'
      ComparisonOperator: LessThanOrEqualToThreshold
      Dimensions:
      - Name: InstanceId
        Value: !Ref instanceid
      - Name: instance
        Value: !Ref volume
      - Name: objectname
        Value: LogicalDisk
#-------------------------------------------------------------------------------
  DiskSpaceCRITICAL:
    Type: AWS::CloudWatch::Alarm
    DeletionPolicy: Retain
    Properties:
      AlarmDescription: !Sub "${instancename} - ${instanceid} - over 95% of ${volume} Drive space is in use"
      AlarmActions:
      - !Ref criticalsnsarn
      OKActions:
      - !Ref criticalsnsarn
      MetricName: "LogicalDisk % Free Space"
      Namespace: CWAgent
      Statistic: Average
      Period: '300'
      EvaluationPeriods: '1'
      Threshold: '5'
      ComparisonOperator: LessThanOrEqualToThreshold
      Dimensions:
      - Name: InstanceId
        Value: !Ref instanceid
      - Name: instance
        Value: !Ref volume
      - Name: objectname
        Value: LogicalDisk
#-------------------------------------------------------------------------------