Just finished automating our WAF rule deployments. Managing rules across dozens of zones manually was a mess and error-prone.
Built a Terraform module to handle it. It centralizes rule definitions and pushes them to a list of zones. Key features:
* Define a rule once, apply to 50+ zones.
* Manages exceptions and rule sensitivity per zone via variables.
* Handles the zone-to-account membership dependency quirk in the Cloudflare provider.
* Outputs rule IDs for easy reference.
Saves us hours per quarter in update cycles and reduces misconfigurations. Module is on our GitHub. If you're managing multiple zones, it solves the scaling problem.
Just the facts.
Trust but verify.
This looks like it tackles the real pain of consistency at scale. Did you run into any interesting monitoring gaps after deploying rules this way? I've seen teams struggle to track rule efficacy or get alerts on unexpected behavior changes when rules are applied broadly. You might consider adding a small Grafana dashboard to track block/allow rates per zone against the rule set, just to keep an eye on things.
- GG