有没有一种方法可以在没有VPC的情况下将静态IP分配给AWS Lambda? [英] Is there a way to assign a Static IP to a AWS Lambda without VPC?

问题描述

我正在为通过API网关调用的Lambda分配一个静态IP.这是必需的，因为我从此lambda调用的下游系统仅接受来自列入白名单的IP的Web请求.

I am looking to assign a static IP to my Lambda which is being invoked via the API gateway. This is required because, the downstream system that i invoke from this lambda accepts web requests only from a Whitelisted IP.

我通过与我的lambda相关联的VPC成功实现了这一目标.但是VPC引入了不好的冷启动时间，有时范围为12-16秒.因此，我正在寻找一种防止VPC冷启动的方法，但同时要为lambda分配一个静态IP.

I am successful in achieving this via the VPC that i associate with my lambda. But VPC introduces a bad cold-start time which sometime ranges 12-16seconds. So i am looking for a way to prevent this cold start from the VPC, but at the same time assign a static IP to the lambda.

推荐答案

我同意John的回答，其中包含静态IP白名单部分.但是，它不能解决您的冷启动问题，因为lambda(如果理想)实际上需要花费很少的时间来启动.因此，我建议您还创建一个Cloudwatch事件来定期打入lambda来解决此问题，或者编写一个简单的代码(在lambda或其他地方)，该代码会定期发送空请求，以便解决冷启动问题.您可以查看X射线中的改进.这是一个开销，但是需要一次的过程.

I agree with the answer by John for having static IP whitelisting part. However, it won't resolve your cold start problem because lambda,if ideal, actually takes a small time to start. So I would recommend you also create a Cloudwatch event to hit lambda periodically to resolve this or write a simple code(either in lambda or somewhere else) which sends an empty request periodically so that cold start problem is resolved. You can view the improvement in X-Ray. This is an overhead but one time process.

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