Right now I have a site hosted in S3 and delivery through Cloudfront and I have an application running on an EC2 instance. the problem is I need to serve the application using a folder in the domain associated with the CloudFront distribution, eg. example.com/app/

I know I can create a rule in the CloudFront distribution and process the request with a lambda function but seems like is not a good way to do it because I'll need to create a reliable proxy function and handle probably a lot of things

How proxy all request that comes to some path like "/app*" to an EC2 instance using Cloudfront?

  • 1
    Can you please edit your question so it says what you're trying to do, ideally with examples or a diagram, rather than just asking how to implement the solution you have in mind. I'm pretty sure CloudFront can send some paths to S3 and some to EC2 / ELB easily, without the use of lambda. – Tim Aug 22 '19 at 6:57
  • I have changed the question to be more explicit @Tim thank you – rkmax Aug 22 '19 at 13:26

You can use more than one origin with CloudFront, one of them will be S3 and the other the domain for your EC2 instance.

Then use CacheBehavior: PathPattern to proxy /app requests to your EC2 origin and DefaultCacheBehavior to proxy all the rest to S3 origin.


  • 1
    proxy /app requests should probably be either (simple) /app* or (more precise) both /app and /app/*. – Michael - sqlbot Aug 22 '19 at 14:36

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