Editing basic WAF profile settings

With Terraform, you can quickly create a cloud infrastructure in Yandex Cloud and manage it using configuration files. These files store the infrastructure description written in HashiCorp Configuration Language (HCL). If you change the configuration files, Terraform automatically detects which part of your configuration is already deployed, and what should be added or removed.

Terraform is distributed under the Business Source License. The Yandex Cloud provider for Terraform is distributed under the MPL-2.0 license.

For more information about the provider resources, see the relevant documentation on the Terraform website or its mirror.

If you do not have Terraform yet, install it and configure the Yandex Cloud provider.

To change the settings of a Yandex Smart Web Security WAF profile created with Terraform:

1. Open the Terraform configuration file and edit the section describing the WAF profile.

   Example of a WAF profile description in the Terraform configuration

   # In the basic set, rules of this paranoia level and below will be enabled
   locals {
     waf_paranoia_level = 1
   }
   
   # OWASP Core Rule Set data source
   data "yandex_sws_waf_rule_set_descriptor" "owasp4" {
     name    = "OWASP Core Ruleset"
     version = "4.0.0"
   }
   
   # WAF profile
   resource "yandex_sws_waf_profile" "default" {
     name = "<WAF_profile_name>"
   
     # Basic rule set
     core_rule_set {
       inbound_anomaly_score = 2
       paranoia_level        = local.waf_paranoia_level
       rule_set {
         name    = "OWASP Core Ruleset"
         version = "4.0.0"
       }
     }
   
     # Enabling rules from the basic set if their paranoia level is not higher than the value defined in the waf_paranoia_level variable
     dynamic "rule" {
       for_each = [
         for rule in data.yandex_sws_waf_rule_set_descriptor.owasp4.rules : rule
         if rule.paranoia_level <= local.waf_paranoia_level
       ]
       content {
         rule_id     = rule.value.id
         is_enabled  = true
         is_blocking = false
       }
     }
   

   For more information about sws_waf_profile properties, see this Terraform provider article.

2. Apply the changes:

   1. In the terminal, go to the directory where you edited the configuration file.

   2. Make sure the configuration file is correct using this command:

      terraform validate
      

      If the configuration is correct, you will get this message:

      Success! The configuration is valid.
      

   3. Run this command:

      terraform plan
      

      You will see a detailed list of resources. No changes will be made at this step. If the configuration contains any errors, Terraform will show them.

   4. Apply the changes:

      terraform apply
      

   5. Type yes and press Enter to confirm the changes.

You can check the resource updates in the management console.

Use the update REST API method for the WafProfile resource or the WafProfile/Update gRPC API call.