What are some examples of Loki alerting?

What are some examples of Loki alerting?

Loki alerting can be set up to monitor logs for specific patterns. For example, you can alert when error logs exceed a certain threshold.

Can you give me a specific example of an alert rule?

Sure! An alert rule could be: 'Alert if the count of logs with the label level=error exceeds 5 in 1 minute.'

How do I configure this alert in Loki?

You can configure it in your alerting rules file, using the Prometheus alerting format. Would you like a sample configuration?

Yes, please provide a sample configuration.

Here's a sample:

groups:
- name: LokiAlerts
  rules:
  - alert: HighErrorRate
    expr: sum(rate({level="error"}[1m])) > 5
    for: 1m
    labels:
      severity: critical
    annotations:
      summary: "High error rate detected!"