groups:- name:examplerules:# Alert for any instance that is unreachable for >5 minutes. - alert:InstanceDownexpr:up == 0for:5mlabels:severity:pageannotations:summary:"Instance {{ $labels.instance }} down"description:"{{ $labels.instance }} of job {{ $labels.job }} has been down for more than 5 minutes."# Alert for any instance that has a median request latency >1s. - alert:APIHighRequestLatencyexpr:api_http_request_latencies_second{quantile="0.5"} > 1for:10mannotations:summary:"High request latency on {{ $labels.instance }}"description:"{{ $labels.instance }} has a median request latency above 1s (current value: {{ $value }}s)"