Context
A production environment with multiple teams had shared runtime ownership but uneven operational standards.
Problem
Incident response was reactive and repetitive. The same failure modes returned because root causes were not consistently removed.
What I changed
- Defined service ownership boundaries and incident triage rules.
- Reworked paging thresholds and runbooks to improve signal quality.
- Added rollback checks in deployment pipelines.
Result
- Incident rate materially reduced.
- On-call load became predictable.
- Recovery steps became faster and less ambiguous.
Stack
Linux, Kubernetes, Prometheus, Grafana, GitHub Actions.
Notes
The highest leverage came from alert quality and ownership clarity, not from adding more tooling.