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使用步骤函数跨区域调用 AWS Lambda

[英]Invoke AWS Lambda across regions using step functions

原文 2018-12-13 19:53:23 0 2 amazon-web-services/ aws-lambda/ aws-api-gateway/ aws-step-functions

ers,呃，

I have a Step Function pipeline which links several Lambda's.我有一个链接多个 Lambda 的 Step Function 管道。 The Step Function is started using a AWS API Gateway. Step Function 是使用 AWS API Gateway 启动的。 All aforementioned items are in the same region.上述所有项目都在同一地区。 However, based on the clients IP origin, I would like to use one lambda of the step function in a different region.但是，根据客户端 IP 来源，我想在不同区域使用 step 函数的一个 lambda。 I did some research but it seems there is no way of invoking a lambda in a different region as compared to the step function region.我做了一些研究，但与阶跃函数区域相比，似乎无法在不同区域调用 lambda。

So basically this would mean that I would have to make different API Gateway entrypoints and different Step Function pipelines, different Lambdas for every region I would like to employ to right?所以基本上这意味着我必须为我想要使用的每个区域创建不同的 API 网关入口点和不同的 Step Function 管道，不同的 Lambda，对吗？ Are there some consequences for the S3 storage I use?对我使用的 S3 存储有什么影响吗？

2 个解决方案

If Step Functions don't support cross-region Lambda's (and it appears they don't) my idea would be to use a 'proxy-lambda' in the same region as the Step Function and within the proxy-lambda invoke the cross-region lambda.如果 Step Functions 不支持跨区域 Lambda（而且似乎不支持），我的想法是在与 Step Function 相同的区域中使用“proxy-lambda”，并在 proxy-lambda 内调用跨区域区域λ。 It's not ideal, you will have to handle pass-through and you will pay twice for the duration of the lambda (1x proxy 1x actual lambda) but it seems a lot easier than having all the elements in all regions.这并不理想，您将不得不处理传递，并且您将在 lambda 的持续时间内支付两次费用（1x 代理 1x 实际 lambda），但这似乎比拥有所有区域的所有元素要容易得多。

I know I'm too late to this, but proposing my idea anyway.我知道我现在已经太晚了，但无论如何还是提出我的想法。 Maybe use SQS?也许使用SQS？ Put an event into an SQS in the other region and add a lambda trigger.将事件放入其他区域的 SQS 中并添加 lambda 触发器。