> trace a single chain of events across platforms Since it sounds like you also control the app, maybe make an HTTP header that the app sends that has some kin

> trace a single chain of events across platforms Since it sounds like you also control the app, maybe make an HTTP header that the app sends that has some kind of UUID for that transaction. When your backend gets it, keep passing it on and logging it as part of your context when you emit log lines. Then using whatever log aggregation system you use, you can search for that UUID. As for collecting your logs, I like ELK stacks, and they are easy to set up and get all your syslogging to go there. There are also ready made helm charts to install these into a kubernetes cluster if you're using that, and they will automatically scoop up everything logged to stdout/stderr.