Terraform resource: aws cloudwatch metric alarm

• https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/cloudwatch_metric_alarm

resource "aws_cloudwatch_metric_alarm" "db_cpu_utilization_too_high" {
  alarm_name          = format("%s-%s", lower("${var.rds_name}"), "db-highCPUUtilization")
  comparison_operator = "GreaterThanThreshold"
  evaluation_periods  = "5"
  metric_name         = "CPUUtilization"
  namespace           = "AWS/RDS"
  period              = "120"
  statistic           = "Average"
  threshold           = "80"
  alarm_description   = "Average database CPU utilization is too high."

  dimensions = {
    DBInstanceIdentifier = aws_db_instance.rds_instance.id
  }
}

resource "aws_cloudwatch_metric_alarm" "db_disk_queue_depth_too_high" {
  alarm_name          = format("%s-%s", lower("${var.rds_name}"), "db-highDiskQueueDepth")
  comparison_operator = "GreaterThanThreshold"
  evaluation_periods  = "2"
  metric_name         = "DiskQueueDepth"
  namespace           = "AWS/RDS"
  period              = "120"
  statistic           = "Average"
  threshold           = "10"
  alarm_description   = "Average database disk queue depth is too high, performance may be negatively impacted."

  dimensions = {
    DBInstanceIdentifier = aws_db_instance.rds_instance.id
  }
}

resource "aws_cloudwatch_metric_alarm" "db_disk_free_storage_space_too_low" {
  alarm_name          = format("%s-%s", lower("${var.rds_name}"), "db-lowFreeStorageSpace")
  comparison_operator = "LessThanThreshold"
  evaluation_periods  = "2"
  metric_name         = "FreeStorageSpace"
  namespace           = "AWS/RDS"
  period              = "120"
  statistic           = "Average"
  threshold           = "10"
  alarm_description   = "Average database free storage space is too low and may fill up soon."

  dimensions = {
    DBInstanceIdentifier = aws_db_instance.rds_instance.id
  }
}

resource "aws_cloudwatch_metric_alarm" "db_memory_freeable_too_low" {
  alarm_name          = format("%s-%s", lower("${var.rds_name}"), "db-lowFreeableMemory")
  comparison_operator = "LessThanThreshold"
  evaluation_periods  = "2"
  metric_name         = "FreeableMemory"
  namespace           = "AWS/RDS"
  period              = "120"
  statistic           = "Average"
  threshold           = "10"
  alarm_description   = "Average database freeable memory is too low, performance may be negatively impacted."

  dimensions = {
    DBInstanceIdentifier = aws_db_instance.rds_instance.id
  }
}

Related

• aws cloudwatch metric alarm
• alarm_actions

See also

• Terraform AWS CloudWatch: aws_cloudwatch_metric_alarm, aws_cloudwatch_log_group, aws_cloudwatch_dashboard
• Terraform AWS: provider, resources, modules, data sources, VPC, IAM, Net, EC2, S3, Route53, ACM, CloudWatch, SES, RDS, ECS, awscc, autoscaling, EKS