I'm configuring an ECS Task Definition to use AWS AppMesh for virtual networking. I'm using Envoy, which AWS recommends running as a sidecar; they have native support for it using the
proxyConfiguration block in the ECS
One of the properties available for configuration in the proxy is
IgnoredUID. This purportedly allows the Envoy process to ignore its own traffic during proxy, without having to inspect it using the proxy. It's a performance enhancement. However, the docs don't describe how I might find my own version of that number. They just use the number "1337" and I haven't been able to figure out where that comes from.
The docs are here: https://docs.aws.amazon.com/AmazonECS/latest/developerguide/appmesh-getting-started.html (scroll down to "Update task definitions" and see JSON section).