dash app not working when deployed in AWS ECS

Question

Hi all. I deployed a python dash app in ECS. Everything works fine and the task seems to be running.
https://i.stack.imgur.com/C8jZh.png?s=556
https://i.stack.imgur.com/mywPI.pngs=556

However when i try to access it with the public or private ip on the port that the app is running (10000), it is not working as you can see below. Any idea why it could be happening?
https://i.stack.imgur.com/dhamC.png?s=556

Apologies, not sure how to post images.

Answer

Was the task created through a Service or directly?

A few things you can check:
- Did you configure the network bindings in your container to expose port 10000? (portMappings section in the Task Definition)
- Check the inbound rules of the security group attached to your task ENI to make sure port 10000 is allowed
- Verify you don't have any NACL on the subnet that could block some traffic

dash app not working when deployed in AWS ECS

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