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ops(multiplayer): add control-plane alert rules

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Josh Creek
2026-09-01 17:22:09 +01:00
parent 0bf33e7fe8
commit 67da422ea6
3 changed files with 72 additions and 1 deletions
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docs/OBSERVABILITY.md
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# Multiplayer observability
The control plane exposes `/metrics` with bounded operation and status labels.
The API latency metric is a cumulative histogram, so Prometheus can evaluate
the documented 250 ms p95 SLO with `histogram_quantile`. The optional
`deploy/observability/prometheus-rules.yaml` resource provides the API p95 and
5xx alerts for clusters running the Prometheus Operator.
Install the rule only after confirming that the `PrometheusRule` CRD and the
`cosmic-clash` namespace exist. The example `runbook_url` values are
placeholders and must be replaced with the operator's incident documentation
before production use.
This artifact intentionally does not claim coverage for regional RTT,
allocation/connect latency, tick headroom, durable-result success, or cost.
Those SLOs need additional server, allocator, and game-server series before
they can be alerted on safely; the current exporter cannot manufacture them.