This one is for setting CloudWatch Alarms & actions

set-CloudWatchAlarms.ps1

Import-Module -Name AWSPowerShell

$sns = "arn:aws:sns:eu-west-1:851073832283:Monitoring-ops"

$instance_id = (Invoke-Restmethod -uri http://169.254.169.254/latest/meta-data/instance-id)
$volume_id = (@(get-ec2volume) | Where-Object { $_.Attachments.InstanceId -eq $instance_id}).VolumeId

$DimensionInstance = New-Object 'Amazon.CloudWatch.Model.Dimension'
$DimensionInstance.Name = 'instance_id'
$DimensionInstance.Value = $instance_id

$DimensionVolume = New-Object 'Amazon.CloudWatch.Model.Dimension'
$DimensionVolume.Name = 'VolumeId'
$DimensionVolume.Value = $volume_id

Write-CWMetricAlarm `
    -AlarmName 'AvailableMemory' `
    -AlarmDescription 'Available Memory on instance' `
    -ActionsEnabled $True `
    -AlarmAction $sns `
    -ComparisonOperator 'LessThanThreshold' `
    -Dimension $DimensionInstance `
    -EvaluationPeriod 1 `
    -MetricName 'Available Memory' `
    -Namespace 'Windows/Default' `
    -Period 300 `
    -Statistic 'Average' `
    -Threshold 1024

Write-CWMetricAlarm `
    -AlarmName 'DiskSpaceCounter' `
    -AlarmDescription 'Available disk space on instance' `
    -ActionsEnabled $True `
    -AlarmAction $sns `
    -ComparisonOperator 'LessThanThreshold' `
    -Dimension $DimensionInstance `
    -EvaluationPeriod 1 `
    -MetricName 'Available DiskSpace' `
    -Namespace 'Windows/Default' `
    -Period 300 `
    -Statistic 'Average' `
    -Threshold 10240

Write-CWMetricAlarm `
    -AlarmName 'NetworkQueueCounter' `
    -AlarmDescription 'Network queue on instance' `
    -ActionsEnabled $True `
    -AlarmAction $sns `
    -ComparisonOperator 'GreaterThanOrEqualToThreshold' `
    -Dimension $DimensionInstance `
    -EvaluationPeriod 1 `
    -MetricName 'Network Queue' `
    -Namespace 'Windows/Default' `
    -Period 300 `
    -Statistic 'Average' `
    -Threshold 3

Write-CWMetricAlarm `
    -AlarmName 'VolumeQueueLength' `
    -AlarmDescription 'VolumeQueueLength on disk' `
    -ActionsEnabled $True `
    -AlarmAction $sns `
    -ComparisonOperator 'GreaterThanThreshold' `
    -Dimension $DimensionVolume `
    -EvaluationPeriod 1 `
    -MetricName 'VolumeQueueLength' `
    -Namespace 'AWS/EBS' `
    -Period 300 `
    -Statistic 'Average' `
    -Threshold 3

Write-CWMetricAlarm `
    -AlarmName 'BurstBalance' `
    -AlarmDescription 'BurstBalance for disk' `
    -ActionsEnabled $True `
    -AlarmAction $sns `
    -ComparisonOperator 'LessThanThreshold' `
    -Dimension $DimensionVolume `
    -EvaluationPeriod 1 `
    -MetricName 'BurstBalance' `
    -Namespace 'AWS/EBS' `
    -Period 300 `
    -Statistic 'Average' `
    -Threshold 20