SECOPS

Correlate WAF events with Datadog app errors into a weekly tuning report

Weekly, joins Cloudflare WAF blocks against Datadog application error and latency metrics to separate rules that block real attacks from rules that block legitimate traffic.

CategorySecOps
Enginesim
Difficultyadvanced
Triggerschedule
Steps6
Setup~25 min

How it runs

The automated pipeline, trigger to output.

  • TriggerWeekly schedule fires
  • ActionPull week of firewall events by rule and endpointCloudflareCloudflare
  • ActionQuery Datadog error, latency, and volume metricsDatadogDatadog
  • LogicCorrelate blocks vs app health; score false positive vs effective
  • ActionGenerate ranked per-rule tuning reportOpenAI
  • OutputPublish report to ConfluenceConfluenceConfluence

What it does

Cross-references a week of Cloudflare WAF blocks with Datadog telemetry from the same time windows and endpoints. Blocks that coincide with upstream app errors or known-good client behavior are flagged as suspected false positives; the result is a ranked, evidence-backed tuning report.

When to use it

When you want a defensible, data-driven view of which managed rules to tune — backed by what the application actually saw — instead of guessing from WAF counts alone. Good for a weekly secops review ritual.

How it works

  1. 1A weekly schedule starts the run.
  2. 2It pulls the week's Cloudflare firewall events grouped by rule and endpoint.
  3. 3It queries Datadog for error rates, latency, and request volume on the matching endpoints and windows.
  4. 4A logic step correlates the two: high block volume with healthy app metrics and trusted clients scores as false-positive; blocks alongside attack-shaped traffic score as effective.
  5. 5An OpenAI step writes a ranked report with per-rule recommendations.
  6. 6The report is published to a Confluence page for the team.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect CloudflareWorkers, Pages, R2, KV — the edge stack.
  2. 2
    Connect DatadogMetrics, traces, log search.
  3. 3
    Connect OpenAIModels, embeddings, files.
  4. 4
    Connect ConfluenceSpaces, pages, blueprints.
  5. 5
    Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
  6. 6
    Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
  7. 7
    Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.

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