在环境重建后，ASG和ELB的名称可预测。 将私有子网中的EC2实例的流日志发送到S3存储桶

【以下的回答经过翻译处理】 在我看来，你可以在这种情况下使用EBS通知功能。

https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.managing.sns.html

您将收到以下示例的通知：

    {
  "Records": [
    {
      "EventSource": "aws:sns",
      "EventVersion": "1.0",
      "EventSubscriptionArn": "arn:aws:sns:us-east-1...ElasticBeanstalkNotifications-Environment-foo-app...",
      "Sns": {
        "Type": "Notification",
        "MessageId": "111",
        "TopicArn": "arn:aws:sns:us-east-1...ElasticBeanstalkNotifications-Environment-foo-app",
        "Subject": "AWS Elastic Beanstalk Notification - New application version was deployed to running EC2 instances",
        "Message": "Timestamp: Thu May 07 23:38:22 UTC 2015\nMessage: Lambda Function Test: New application version was deployed to running EC2 instances.\n\nEnvironment: foo-app\nApplication: FooApp\n\nEnvironment URL: http://foo.com\nRequestId: 222\nNotificationProcessId: 333",
        "Timestamp": "2015-05-07T23:39:18.628Z",
        "SignatureVersion": "1",
        "Signature": "hello-sig",
        "SigningCertUrl": "https://sns.us-east-1.amazonaws.com/...",
        "UnsubscribeUrl": "https://sns.us-east-1.amazonaws.com/...",
        "MessageAttributes": {}
      }
    }
  ]
}

您可以在此通知的'Message'中使用'Environment'值来修改Lambda中Grafana的资源。