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resource "aws_db_instance" "primary" {
  identifier = "prod-postgres"

  lifecycle {
    prevent_destroy = true
  }
}

resource "aws_s3_bucket_versioning" "data" {
  bucket = aws_s3_bucket.data.id
  versioning_configuration {
    status = "Enabled"
  }
}

resource "aws_cloudwatch_metric_alarm" "db_cpu" {
  alarm_name          = "db-high-cpu"
  comparison_operator = "GreaterThanThreshold"
  evaluation_periods  = 3
  metric_name         = "CPUUtilization"
  namespace           = "AWS/RDS"
  period              = 300
  statistic           = "Average"
  threshold           = 80
  alarm_actions       = [aws_sns_topic.alerts.arn]
}