Polylane: AI‑On‑Call Assistant for Cloudflare Edge Failures

When a Cloudflare edge failure hits production, every second counts. Polylane, the new AI‑on‑call platform that just launched on Product Hunt, gives SREs and security ops teams an instant, LLM‑driven response engine that diagnoses, triages, and even remediates incidents without human hand‑off. In this guide you’ll get everything you need to spin up Polylane for Cloudflare—architecture diagrams, ready‑to‑run code, Slack/PagerDuty wiring, security hardening, monitoring, and a cost breakdown.

The September 2024 Cloudflare outage exposed how fragile traditional on‑call rotations are: fatigue, delayed hand‑offs, and noisy alerts. Polylane’s LLM engine parses Cloudflare logs, correlates third‑party telemetry, and spits out concrete remediation steps in under five seconds, slashing MTTA and MTTR dramatically.

+----------------+      +----------------+      +-------------------+
| Cloudflare     | ---> | Polylane Ingest| ---> | LLM (GPT‑4o/Claude‑3) |
| Webhooks/API   |      | Service        |      | (system prompt with CF schema) |
+----------------+      +----------------+      +----------+--------+
                                                |
                                                v
                                      +-------------------+
                                      | Decision Engine   |
                                      | → JSON response   |
                                      +--------+----------+
                                               |
            +-------------------+   +----------v----------+   +-------------------+
            | Slack / PagerDuty |   | Remediation Workers|   | Observability (Prom) |
            +-------------------+   +--------------------+   +-------------------+

severity, recommendation, actions). Zone.Zone, Zone.Cache Purge, Zone.Settings.

   curl -X POST "https://api.cloudflare.com/client/v4/user/tokens" \
        -H "Content-Type: application/json" \
        -d '{
              "name":"Polylane‑Token",
              "policies":[{
                "effect":"allow",
                "resources":{"com.cloudflare.api.account.zone.*": "*"},
                "permission_groups":["zone.read","zone.settings.read","zone.settings.edit","cache_purge"]
              }]
            }'

Store both secrets in your GitHub repository’s Settings → Secrets as CF_API_TOKEN and POLYLANE_JWT.

// playbook.js
import fetch from 'node-fetch';

export async function handleEvent(event) {
  const { type, details } = event;
  if (type !== 'dns_error') return { severity: 'low' };

  // Call Cloudflare API to purge the problematic DNS record cache
  const resp = await fetch(`https://api.cloudflare.com/client/v4/zones/${process.env.CF_ZONE_ID}/dns_records/${details.record_id}`, {
    method: 'PATCH',
    headers: {
      'Authorization': `Bearer ${process.env.CF_API_TOKEN}`,
      'Content-Type': 'application/json'
    },
    body: JSON.stringify({ ttl: 300 })
  });

  const data = await resp.json();
  return {
    severity: 'high',
    recommendation: 'Reduced TTL to 5 min',
    actions: [{ type: 'api_call', result: data.success }]
  };
}
python
import os, requests

def handle_event(event):
    if event["type"] != "waf_block":
        return {"severity": "low"}

    zone = os.getenv("CF_ZONE_ID")
    token = os.getenv("CF_API_TOKEN")
    rule_id = event["details"]["rule_id"]

    url = f"https://api.cloudflare.com/client/v4/zones/{zone}/firewall/rules/{rule_id}"
    payload = {"mode": "challenge"}   # downgrade from block to challenge
    headers = {"Authorization": f"Bearer {token}", "Content-Type": "application/json"}

    r = requests.patch(url, json=payload, headers=headers)
    return {
        "severity": "critical",
        "recommendation": "Downgrade rule to challenge",
        "actions": [{"type": "api_call", "success": r.ok}]
    }

Deploy either file to Polylane’s Playbook Store via the UI or CLI:

polyctl upload playbook.js --runtime nodejs18
polyctl upload playbook.py --runtime python3.11

SLACK_WEBHOOK secret. PD_INTEGRATION_KEY).

slack:
  webhook_url: ${SLACK_WEBHOOK}
pagerduty:
  integration_key: ${PD_INTEGRATION_KEY}

Polylane will post a formatted message when severity ≥ high and automatically trigger a PagerDuty incident.

Add the following Prometheus rules to your alertmanager.yml:

groups:
- name: polylane
  rules:
  - alert: HighLLMLatency
    expr: avg_over_time(polylane_llm_latency_seconds[5m]) > 3
    for: 2m
    labels:
      severity: warning
    annotations:
      summary: "LLM response time > 3 s"
      description: "Investigate network latency or LLM throttling."
  - alert: MTTRExceeded
    expr: polylane_mttr_seconds > 300
    for: 1m
    labels:
      severity: critical
    annotations:
      summary: "Mean Time to Resolution > 5 min"
      description: "Check playbook efficiency and API health."

Dashboard snippets (Grafana):

polylane_llm_latency_seconds. polylane_incidents_total{severity=~"critical|high|medium|low"}.

yaml
name: Deploy Polylane Playbooks
on:
  push:
    paths:
      - 'playbooks/**'
jobs:
  deploy:
    runs-on: ubuntu-l

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*Herramienta mencionada: [Groq Cloud](https://groq.com)*