Lesson 3: SLO Enforcement in Practice

SLO‑Driven Operations

Use SLOs to set thresholds for alerts and capacity changes.

Sruja: Model SLOs & Validate

import { * } from 'sruja.ai/stdlib'


API = system "API Server" {
  Gateway = container "Gateway" {
    scale { metric "req/s" min 500 max 5000 }
  }
}

slo {
availability { target "99.95%" window "30 days" }
latency { p95 "150ms" window "7 days" }
errorRate { target "< 0.05%" window "30 days" }
throughput { target "3000 req/s" window "1 hour" }
}

view index {
include *
}

sruja lint payments.sruja

Practice

• Define SLOs for your critical path; ensure scale bounds meet throughput.
• Set alert thresholds aligned to SLO windows.