resource aws_cloudwatch_metric_alarm rds-cpu {
  alarm_name = "RDS:CpuUtilization:${var.rds-instance-name}"
  comparison_operator = "GreaterThanThreshold"
  evaluation_periods = "1"
  metric_name = "CPUUtilization"
  period = "3600"
  statistic = "Average"
  threshold = var.threshold-CpuUtilization
  alarm_description = "RDS:CpuUtilization"
  namespace = "AWS/RDS"
  insufficient_data_actions = []
  actions_enabled = "true"
  alarm_actions = [var.alarm-actions-urgent]
  ok_actions = [var.alarm-actions-urgent]
  dimensions = {
    DBInstanceIdentifier = var.rds-instance-name
  }
  tags = var.default-tags
  lifecycle {
    ignore_changes = [tags]
  }
}

resource aws_cloudwatch_metric_alarm rds-storage {
  alarm_name = "RDS:FreeStorageSpace:${var.rds-instance-name}"
  comparison_operator = "LessThanThreshold"
  evaluation_periods = "1"
  metric_name = "FreeStorageSpace"
  period = "3600"
  statistic = "Average"
  threshold = var.threshold-FreeStorageSpace
  alarm_description = "RDS:FreeStorageSpace"
  namespace = "AWS/RDS"
  insufficient_data_actions = []
  actions_enabled = "true"
  alarm_actions = [var.alarm-actions-urgent]
  ok_actions = [var.alarm-actions-urgent]
  dimensions = {
    DBInstanceIdentifier = var.rds-instance-name
  }
  tags = var.default-tags
  lifecycle {
    ignore_changes = [tags]
  }
}

resource aws_cloudwatch_metric_alarm rds-memory {
  alarm_name = "RDS:FreeableMemory:${var.rds-instance-name}"
  comparison_operator = "LessThanThreshold"
  evaluation_periods = "1"
  metric_name = "FreeableMemory"
  period = "3600"
  statistic = "Average"
  threshold = var.threshold-FreeableMemory
  alarm_description = "RDS:FreeableMemory"
  namespace = "AWS/RDS"
  insufficient_data_actions = []
  actions_enabled = "true"
  alarm_actions = [var.alarm-actions-urgent]
  ok_actions = [var.alarm-actions-urgent]
  dimensions = {
    DBInstanceIdentifier = var.rds-instance-name
  }
  tags = var.default-tags
  lifecycle {
    ignore_changes = [tags]
  }
}

resource aws_cloudwatch_metric_alarm rds-DiskQueueDepth {
  alarm_name = "RDS:DiskQueueDepth:${var.rds-instance-name}"
  comparison_operator = "GreaterThanThreshold"
  evaluation_periods = "1"
  metric_name = "DiskQueueDepth"
  period = "300"
  statistic = "Average"
  threshold = var.threshold-DiskQueueDepth
  alarm_description = "RDS:DiskQueueDepth"
  namespace = "AWS/RDS"
  insufficient_data_actions = []
  actions_enabled = "true"
  alarm_actions = [var.alarm-actions-urgent]
  ok_actions = [var.alarm-actions-urgent]
  dimensions = {
    DBInstanceIdentifier = var.rds-instance-name
  }
  tags = var.default-tags
  lifecycle {
    ignore_changes = [tags]
  }
}