How to Create Loki Alerts via PrometheusRule Resource

In modern observability stacks, log-based alerts are often more immediate and actionable than those based on metrics, especially when you're tracking down anomalies, security incidents, or sudden application failures. While tools like Loki simplify log aggregation, turning those logs into meaningful, automated alerts remains a challenge. In the world of metrics, many engineers are familiar with Prometheus and its PrometheusRule resource for Kubernetes. But what if you could apply that same flexible, declarative alerting model to Loki logs?