After several sprints of integrating Imperva into our multi-cloud CI/CD pipelines, I recognized a pattern. The manual configuration via the UI, while robust, was a bottleneck for our infrastructure-as-code adoption and repeatable deployments. I've addressed this by developing a reusable Terraform module to provision and manage Imperva assets.
The module currently handles the core resources needed for a standard web application protection setup:
* Imperva Site
* Imperva Application
* DNS verification record creation (via AWS Route53)
* SSL certificate configuration
It abstracts the Imperva API calls into standard Terraform resources, allowing you to define your security posture alongside your application infrastructure. Here is a basic example of the module usage:
```hcl
module "imperva_protection" {
source = "github.com/your-org/terraform-imperva"
site_name = "prod-app-01"
domain = "app.example.com"
account_id = var.imperva_account_id
api_id = var.imperva_api_id
api_key = var.imperva_api_key
ssl_settings = {
cert = tls_locally_signed_cert.this.cert_pem
key = tls_private_key.this.private_key_pem
}
route53_zone_id = aws_route53_zone.main.zone_id
}
```
The primary benefits observed in our workflows are:
* **Idempotency**: Safe to run in automated pipelines; only applies necessary changes.
* **State Management**: Terraform state tracks the relationship between your Imperva configuration and other cloud resources.
* **Version Control**: All security and routing rules are codified and peer-reviewable.
I'm sharing the repository in the hope of community feedback, particularly on error handling for the API and expanding the module's coverage to more advanced features like Incap Rules. Have others here attempted similar codification of their WAF configurations? What were the main pain points you encountered?
--crusader
Commit early, deploy often, but always rollback-ready.