了解 AWS-Config 规则和配置更改

Understanding AWS-Config Rules and Confuguration Changes

我目前正在使用 aws-cdk,我的任务是为 15 个左右的规则创建配置规则,我们希望在这些规则上观察和接收通知。这是我的代码供参考:

 const vpcFlowLoggingBucket = new s3.Bucket(this,'vpcFlowLoggingBucket', {
              accessControl:s3.BucketAccessControl.LOG_DELIVERY_WRITE
      
            });
            const generalConfigRole = new iam.Role(this,  'generalConfigRole',{
              assumedBy: new iam.ServicePrincipal('config.amazonaws.com')
            });

            const cloudTrailEnabledRule = new ManagedRule(this, 'cloudTrailEnabledRule', {
              identifier: 'CLOUD_TRAIL_ENABLED'
            });
            const  iamPasswordPolicyRule = new ManagedRule(this, 'iamPasswordPolicyRule',{
              identifier: 'IAM_PASSWORD_POLICY'
            });
            const userGroupMembershipRule = new ManagedRule(this, 'userGroupMembershipRule',{
              identifier: 'IAM_USER_GROUP_MEMBERSHIP_CHECK'
            });

            const userPolicyRule = new ManagedRule(this,'userPolicyRule',{
              identifier: 'IAM_USER_NO_POLICIES_CHECK'
            });
            const rootAccountMfaEnabledRule = new ManagedRule(this, 'rootAccountMfaEnabledRule',{
              identifier: 'ROOT_ACCOUNT_MFA_ENABLED'
            });
            const accessKeysRotatedRule = new ManagedRule(this, 'accessKeysRotatedRule',{
              identifier:'ACCESS_KEYS_ROTATED',
              inputParameters: {
                maxAccessKeyAge: 100, //rule triggers off of config change and keys must be rotated within 100 days
                configurationChanges: true
              }

              //TODO reference your custom lambda for this
              //Parameters need to be specified here for the amount of days to rotate
            });
            const cloudTrailEncryptionRule = new ManagedRule(this, 'cloudTrailEncryptionRule' ,{
              identifier:'CLOUD_TRAIL_ENCRYPTION_ENABLED'
            });
            const defaultSecurityGroupEniRule = new ManagedRule(this, 'defaultSecurityGroupEniRule',{
              identifier:'EC2_SECURITY_GROUP_ATTACHED_TO_ENI'
            });

            const ebsVolumeEncryption = new ManagedRule(this, 'ebsVolumeEncryption',{
              identifier:'EC2_EBS_ENCRYPTION_BY_DEFAULT'
            });
            const rdsStorageEncryptionRule = new ManagedRule(this, 'rdsStorageEncryptionRule',{
              identifier: 'RDS_STORAGE_ENCRYPTED'
              //This may need the arn of the kms key used for encryption
            });

            const s3BucketLoggingEnabledRule = new ManagedRule(this, 's3BucketLoggingEnabledRule',{
              identifier: 'S3_BUCKET_LOGGING_ENABLED'
              //@aroesec may be able to use a custom rule here for this one and my lambda
            // TODO add custom lambda to this for future purposes
            });
            const s3BucketServerSideEncryptionRule = new ManagedRule(this, 's3BucketServerSideEncryptionRule',{
              identifier:'S3_BUCKET_SERVER_SIDE_ENCRYPTION_ENABLED'
              //@aroesec may be able to use a custom rule here for my lambda
            // TODO add custom lambda to this for future purposes
            });

            const vpcFlowLogsEnabledRule = new ManagedRule(this, 'vpcFlowLogsEnabledRule',{
              identifier:'VPC_FLOW_LOGS_ENABLED',
              inputParameters: {
                trafficType:'ALL', //vpcs must track all traffic (ALLOW and DENY) with this rule
                configurationChanges: true
              }
            });

            const vpcDefaultSecurityGroupRule = new ManagedRule(this, 'vpcDefaultSecurityGroupRule',{
              identifier:'VPC_DEFAULT_SECURITY_GROUP_CLOSED'
            });

            const mfaEnabledForConsoleAccessRule = new ManagedRule(this, 'mfaEnabledForConsoleAccessRule',{
              identifier: 'MFA_ENABLED_FOR_IAM_CONSOLE_ACCESS'
            });

            const rdsMultiAvailZoneRule = new ManagedRule(this, 'rdsMultiAvailZoneRule',{
              identifier:'RDS_MULTI_AZ_SUPPORT'
            });
          }

        }

我的问题是,当我尝试使用 configurationChanges 参数并将其设置为 True 时。我正在寻找那个配置规则来扫描那个资源组,当它注意到那里有变化时。我想这样做而不使用“频率”参数的原因是我们的客户不希望扫描频率高达 24 小时。他们希望他们对每条规则进行大约 2 周的扫描。我的问题是,1. 我可以让配置规则的扫描频率低于 24 小时吗?例如,也许每周一次? 2. 我可以让 lambda 触发配置规则进行扫描吗?例如,让 lambda 检查 vpc 流日志,如果不存在,则触发配置规则 return“不合规”。或 3. 我可以为每个配置规则将 configurationChange 设置为 true 并让 aws 从那里处理它吗?我问这个具体问题是因为我已经阅读了一些有关配置记录器的内容,但不确定如何使用它或者是否有必要使用它。提前谢谢大家!

  1. 配置规则扫描的最低频率是24小时,如果检查boto3 API。

  2. 你会想要相反的,有配置规则 运行 定期或当配置更改时。

  3. AWS 不知道要处理什么。如果你进行配置更改,你 API 或你的代码(通过 lambda)需要知道要检查什么(即桶对 public 开放),然后当 public 桶检测到,lambda 将捕获它并报告 (PutEvaluationAP