monitoring.tf

# CloudWatch Alarms for RDS
# Monitors critical database metrics

resource "aws_cloudwatch_metric_alarm" "rds_cpu" {
  alarm_name          = "rds-cpu-utilization-high"
  comparison_operator = "GreaterThanThreshold"
  evaluation_periods  = 3
  metric_name         = "CPUUtilization"
  namespace           = "AWS/RDS"
  period              = 300
  statistic           = "Average"
  threshold           = 80
  alarm_description   = "RDS CPU utilization above 80%"
}

resource "aws_cloudwatch_metric_alarm" "rds_connections" {
  alarm_name          = "rds-connections-high"
  comparison_operator = "GreaterThanThreshold"
  evaluation_periods  = 2
  metric_name         = "DatabaseConnections"
  namespace           = "AWS/RDS"
  period              = 300
  statistic           = "Average"
  threshold           = 100
  alarm_description   = "RDS connections exceeding threshold"
}

resource "aws_cloudwatch_metric_alarm" "rds_storage" {
  alarm_name          = "rds-free-storage-low"
  comparison_operator = "LessThanThreshold"
  evaluation_periods  = 2
  metric_name         = "FreeStorageSpace"
  namespace           = "AWS/RDS"
  period              = 300
  statistic           = "Average"
  threshold           = 5368709120  # 5GB in bytes
  alarm_description   = "RDS free storage below 5GB"
}