Alert: CaddyErrorRateHigh¶
Symptom¶
Caddy 5xx response rate above 5% for 10 minutes with non-trivial request volume.
Immediate action¶
ssh lastvet-edge 'journalctl -u caddy --since "10 min ago" | tail -30'
ssh lastvet-api 'systemctl status lastvet-api-prod lastvet-api-staging --no-pager'
Diagnosis¶
- Upstream API failures (502/503).
- TLS or routing misconfiguration.
- DDoS or scanner traffic (may correlate with SSHBruteForce).
Escalation¶
Ryan if public API endpoints affected.
Resolution history¶
| Date | Notes |
|---|---|