Incident-Response

Something is broken in production. Customers are complaining. Your heart rate is elevated. What now? Having a playbook before the incident happens is the difference between a coordinated response and chaos. Here’s the playbook. The First 5 Minutes 1. Acknowledge the Incident Someone needs to own it. Right now. @ S I C c t n o h a c m a t i m n u d s n s e : e : n l t # I i 🚨 n C n v o c I e m i N s m d C t a e I i n n D g d t E a e - N t r 2 T i : 0 : n 2 g @ 4 P a - a l 0 y i 3 m c - e e 1 n 2 t p r o c e s s i n g f a i l i n g Create a dedicated channel immediately. All incident communication goes there. ...

When production is on fire, you need a process—not panic. A good incident response framework gets you from “everything’s broken” to “everything’s fixed” with minimal chaos. Incident Lifecycle D e t e c t i o n → T r i a g e → R e s p o n s e → R e s o l u t i o n → P o s t m o r t e m Each phase has specific goals and actions. ...

On-call doesn’t have to mean sleepless nights and burnout. With the right practices, you can maintain reliable systems while keeping your team healthy. Here’s how. Alert Design Only Alert on Actionable Items 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 # Bad: Noisy, leads to alert fatigue - alert: HighCPU expr: cpu_usage > 80 for: 1m # Good: Actionable, symptom-based - alert: HighErrorRate expr: | sum(rate(http_requests_total{status=~"5.."}[5m])) / sum(rate(http_requests_total[5m])) > 0.01 for: 5m labels: severity: warning runbook: "https://runbooks.example.com/high-error-rate" annotations: summary: "Error rate {{ $value | humanizePercentage }} exceeds 1%" impact: "Users experiencing failures" action: "Check application logs and recent deployments" Severity Levels 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 # severity-definitions.yaml severities: critical: description: "Service completely down, immediate action required" response_time: "5 minutes" notification: "page + phone call" examples: - "Total service outage" - "Data loss occurring" - "Security breach detected" warning: description: "Degraded service, action needed soon" response_time: "30 minutes" notification: "page" examples: - "Error rate elevated but service functional" - "Approaching resource limits" - "Single replica down" info: description: "Notable event, no immediate action" response_time: "Next business day" notification: "Slack" examples: - "Deployment completed" - "Scheduled maintenance starting" Runbooks Every alert needs a runbook: ...