29 lines
979 B
YAML
29 lines
979 B
YAML
groups:
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- name: webapp
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rules:
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- alert: WebappDown
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expr: up{job="webapp"} == 0
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for: 30s
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labels:
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severity: critical
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annotations:
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summary: "Webapp is down"
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description: "Prometheus cannot scrape the webapp for more than 30 seconds."
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- alert: HighErrorRate
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expr: sum(rate(http_requests_total{status=~"5.."}[1m])) / sum(rate(http_requests_total[1m])) > 0.05
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for: 1m
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labels:
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severity: warning
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annotations:
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summary: "More than 5% of requests are failing"
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description: "The 5xx ratio has been above 5% for 1 minute."
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- alert: HighLatencyP95
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expr: histogram_quantile(0.95, sum by (le) (rate(http_request_duration_seconds_bucket[5m]))) > 0.5
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: "p95 latency above 500ms"
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description: "95% of requests take longer than 0.5s." |