terraform.aws-baseline-infra/modules/ManagementGovernance/Monitoring.NGW/main.tf

resource "aws_cloudwatch_metric_alarm" "ngw-alarms" {
  for_each                  = var.settings
  alarm_name                = "${var.cw-alarm-prefix}:NGW:${each.value["metric"]}:${var.res-id}"
  comparison_operator       = each.value["comparison_operator"]
  evaluation_periods        = each.value["evaluation_periods"]
  metric_name               = each.value["metric"]
  period                    = each.value["period"]
  statistic                 = each.value["statistic"]
  threshold                 = each.value["threshold"]
  alarm_description         = "NGW:${each.value["metric"]}"
  namespace                 = "AWS/NATGateway"
  insufficient_data_actions = []
  actions_enabled           = var.actions-enabled
  alarm_actions             = [each.value["action"]]
  ok_actions                = [each.value["action"]]
  dimensions = {
    NatGatewayId = var.res-id
  }
  tags = var.default-tags
  lifecycle {
    ignore_changes = [tags]
  }
}


/*
resource "aws_cloudwatch_metric_alarm" "ngw-ErrorPortAllocation" {
  alarm_name                = "${var.cw-alarm-prefix}:NGW:${var.settings.alarm1.metric}:${var.res-id}"
  comparison_operator       = "GreaterThanThreshold"
  evaluation_periods        = "2"
  metric_name               = var.settings.alarm1.metric
  period                    = "300"
  statistic                 = "Average"
  threshold                 = var.settings.alarm1.threshold
  alarm_description         = "NGW:${var.settings.alarm1.metric}"
  namespace                 = "AWS/NATGateway"
  insufficient_data_actions = []
  actions_enabled           = var.actions-enabled
  alarm_actions             = [var.settings.alarm1.action]
  ok_actions                = [var.settings.alarm1.action]
  dimensions = {
    NatGatewayId = var.res-id
  }
  tags = var.default-tags
  lifecycle {
    ignore_changes = [tags]
  }
}

resource "aws_cloudwatch_metric_alarm" "ngw-ConnectionEstablishedCount" {
  alarm_name                = "${var.cw-alarm-prefix}:NGW:${var.settings.alarm2.metric}:${var.res-id}"
  comparison_operator       = "GreaterThanThreshold"
  evaluation_periods        = "2"
  metric_name               = var.settings.alarm2.metric
  period                    = "300"
  statistic                 = "Average"
  threshold                 = var.settings.alarm2.threshold
  alarm_description         = "NGW:${var.settings.alarm2.metric}"
  namespace                 = "AWS/NATGateway"
  insufficient_data_actions = []
  actions_enabled           = var.actions-enabled
  alarm_actions             = [var.settings.alarm2.action]
  ok_actions                = [var.settings.alarm2.action]
  dimensions = {
    NatGatewayId = var.res-id
  }
  tags = var.default-tags
  lifecycle {
    ignore_changes = [tags]
  }
}

resource "aws_cloudwatch_metric_alarm" "ngw-PacketsDropCount" {
  alarm_name                = "${var.cw-alarm-prefix}:NGW:${var.settings.alarm3.metric}:${var.res-id}"
  comparison_operator       = "GreaterThanThreshold"
  evaluation_periods        = "2"
  metric_name               = var.settings.alarm3.metric
  period                    = "300"
  statistic                 = "Average"
  threshold                 = var.settings.alarm3.threshold
  alarm_description         = "NGW:${var.settings.alarm3.metric}"
  namespace                 = "AWS/NATGateway"
  insufficient_data_actions = []
  actions_enabled           = var.actions-enabled
  alarm_actions             = [var.settings.alarm3.action]
  ok_actions                = [var.settings.alarm3.action]
  dimensions = {
    NatGatewayId = var.res-id
  }
  tags = var.default-tags
  lifecycle {
    ignore_changes = [tags]
  }
}
*/