keycast/tools/loadtest/capacity-plan.json.example at main · divinevideo/keycast · GitHub

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{
  "profile_name": "local-cloud-run-rehearsal",
  "profile_platform": "cloud-run",
  "target_url": "http://localhost:3000",
  "users_file": "./loadtest-users.json",
  "seed": 371,
  "revisions": {
    "code": "replace-with-tested-commit",
    "image": "replace-with-tested-image-digest",
    "infrastructure": "tools/loadtest/docker-compose.scale.yml@replace-with-commit"
  },
  "environment_parity": "Local rehearsal only; not Cloud Run or GKE capacity evidence.",
  "objectives": {
    "availability_percent": 99.0,
    "latency_p95_ms": 1000.0
  },
  "stop_conditions": {
    "max_error_rate": 0.05,
    "max_latency_p95_ms": 2000.0
  },
  "phases": [
    {
      "name": "gradual-ramp",
      "kind": "ramp",
      "method": "get-public-key",
      "scenario": "mixed",
      "concurrency": 10,
      "duration_seconds": 60,
      "ramp_up_seconds": 30,
      "max_error_rate": 0.01,
      "max_latency_p95_ms": 1000.0,
      "slo_applies": true,
      "intentional_shedding": null
    },
    {
      "name": "sudden-spike",
      "kind": "spike",
      "method": "sign-event",
      "scenario": "mixed",
      "concurrency": 50,
      "duration_seconds": 30,
      "ramp_up_seconds": 0,
      "max_error_rate": 0.05,
      "max_latency_p95_ms": 2000.0,
      "slo_applies": false,
      "intentional_shedding": null
    },
    {
      "name": "sustained-soak",
      "kind": "soak",
      "method": "nip44-encrypt",
      "scenario": "mixed",
      "concurrency": 20,
      "duration_seconds": 300,
      "ramp_up_seconds": 10,
      "max_error_rate": 0.01,
      "max_latency_p95_ms": 1000.0,
      "slo_applies": true,
      "intentional_shedding": null
    },
    {
      "name": "traffic-recovery",
      "kind": "recovery",
      "method": "get-public-key",
      "scenario": "warm-cache",
      "concurrency": 5,
      "duration_seconds": 60,
      "ramp_up_seconds": 0,
      "max_error_rate": 0.01,
      "max_latency_p95_ms": 1000.0,
      "slo_applies": true,
      "intentional_shedding": null
    },
    {
      "name": "rollout-observation",
      "kind": "rollout",
      "method": "sign-event",
      "scenario": "cold-start",
      "concurrency": 10,
      "duration_seconds": 60,
      "ramp_up_seconds": 10,
      "max_error_rate": 0.01,
      "max_latency_p95_ms": 1000.0,
      "slo_applies": true,
      "intentional_shedding": null
    },
    {
      "name": "scale-down-observation",
      "kind": "scale-down",
      "method": "get-public-key",
      "scenario": "mixed",
      "concurrency": 2,
      "duration_seconds": 60,
      "ramp_up_seconds": 0,
      "max_error_rate": 0.01,
      "max_latency_p95_ms": 1000.0,
      "slo_applies": true,
      "intentional_shedding": null
    }
  ]
}