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Three SLOs with multi-window burn-rate alerts (Google SRE workbook
methodology) :
* SLO_API_AVAILABILITY : 99.5% on read (GET) endpoints
* SLO_API_LATENCY : 99% writes p95 < 500ms
* SLO_PAYMENT_SUCCESS : 99.5% on POST /api/v1/orders -> 2xx
Each SLO has two alerts :
* <name>SLOFastBurn — page-grade, 2% budget burned in 1h (1h+5m windows)
* <name>SLOSlowBurn — ticket-grade, 5% budget burned in 6h (6h+30m)
- config/prometheus/slo.yml : 12 recording rules + 6 alerts ; promtool
check rules => SUCCESS: 18 rules found.
- config/alertmanager/routes.yml : routing tree splits page-oncall (slack
+ PagerDuty) from ticket-oncall (slack only).
- docs/runbooks/{api-availability,api-latency,payment-success}-slo-burn.md
+ db-failover, redis-down, disk-full, cert-expiring-soon : one stub
per likely page. Each lists first moves under 5min + common causes.
Acceptance (Day 10) : promtool check rules vert.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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