機器人控制範例：使用兩個陳述式來限制目標檢驗層級的使用

作為成本最佳化，您可以在 Web ACL 中使用兩個 AWS WAF Bot Control 受管規則群組陳述式，其中包含不同的檢查層級和範圍。例如，您可以將目標檢查層級陳述式的範圍限定為較敏感的應用程式端點。

下列範例中的兩個陳述式具有互斥的範圍設定。如果沒有此配置，請求可能會導致兩次計費評估。

注意

主控台的視覺化編輯器不支援參考AWSManagedRulesBotControlRuleSet多個陳述式。而是使用 JSON 編輯器。

{
  "Name": "Bot-WebACL",
  "Id": "...",
  "ARN": "...",
  "DefaultAction": {
    "Allow": {}
  },
  "Description": "Bot-WebACL",
  "Rules": [
      {
        ...
      },
      {
       "Name": "AWS-AWSBotControl-Common",
       "Priority": 5,
       "Statement": {
          "ManagedRuleGroupStatement": {
             "VendorName": "AWS",
             "Name": "AWSManagedRulesBotControlRuleSet",
             "ManagedRuleGroupConfigs": [
               {
                 "AWSManagedRulesBotControlRuleSet": {
                   "InspectionLevel": "COMMON"
                 }
               }
             ],
             "RuleActionOverrides": [],
             "ExcludedRules": []
          },
          "VisibilityConfig": {
             "SampledRequestsEnabled": true,
             "CloudWatchMetricsEnabled": true,
             "MetricName": "AWS-AWSBotControl-Common"
           },
           "ScopeDownStatement": {
              "NotStatement": {
                "Statement": {
                  "ByteMatchStatement": {
                    "FieldToMatch": {
                      "UriPath": {}
                    },
                    "PositionalConstraint": "STARTS_WITH",
                    "SearchString": "/sensitive-endpoint",
                    "TextTransformations": [
                      {
                        "Type": "NONE",
                        "Priority": 0
                      }
                    ]
                  }
                }
              }
            }
        }
      },
      {
       "Name": "AWS-AWSBotControl-Targeted",
       "Priority": 6,
       "Statement": {
          "ManagedRuleGroupStatement": {
             "VendorName": "AWS",
             "Name": "AWSManagedRulesBotControlRuleSet",
             "ManagedRuleGroupConfigs": [
               {
                 "AWSManagedRulesBotControlRuleSet": {
                   "InspectionLevel": "TARGETED",
                   "EnableMachineLearning": true
                 }
               }
             ],
             "RuleActionOverrides": [],
             "ExcludedRules": []
          },
          "VisibilityConfig": {
             "SampledRequestsEnabled": true,
             "CloudWatchMetricsEnabled": true,
             "MetricName": "AWS-AWSBotControl-Targeted"
           },
           "ScopeDownStatement": {
              "Statement": {
                "ByteMatchStatement": {
                  "FieldToMatch": {
                    "UriPath": {}
                  },
                  "PositionalConstraint": "STARTS_WITH",
                  "SearchString": "/sensitive-endpoint",
                  "TextTransformations": [
                    {
                      "Type": "NONE",
                      "Priority": 0
                    }
                  ]
                }
              }
            }
        }
      }
    ],
    "VisibilityConfig": {
      ...
    },
    "Capacity": 1496,
    "ManagedByFirewallManager": false
}