cloudwatch_metric_alarm_in.tf

resource "aws_cloudwatch_metric_alarm" "sqs_scale_in" {
  alarm_name = "SQS-ScaleIn-${var.service_name}"
  comparison_operator = "LessThanThreshold"
  evaluation_periods = "1"
  metric_name = "ApproximateNumberOfMessagesVisible"
  namespace = "AWS/SQS"
  period = "60"
  threshold = "1"
  statistic = "Sum"
  alarm_description = "SQS-ScaleIn-${var.service_name}"
  alarm_actions = [
    aws_appautoscaling_policy.scale_down_fargate.arn]


  dimensions = {
    QueueName = var.queue_name
  }
}