f8f5d2011d
Adds an nginx in front of the query endpoint so we can use stalk without faffing with browser extension to bypass CORS. Also make the spans correctly have the call membership span as parent, which they didn't because we hadn't set the span at the point we made the context.
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OpenTelemetry Collector for development
This directory contains a docker compose file that starts a jaeger all-in-one instance with an in-memory database, along with a standalong OpenTelemetry collector that forwards traces into the jaeger. Jaeger has a built-in OpenTelemetry collector, but it can't be configured to send CORS headers so can't be used from a browser. This sets the config on the collector to send CORS headers.
This also adds an nginx to add CORS headers to the jaeger query endpoint, such that it can be used from webapps like stalk (https://deniz.co/stalk/). The CORS enabled endpoint is exposed on port 16687. To use stalk, you should simply be able to navigate to it and add http://127.0.0.1:16687/api as a data source.
(Yes, we could enable the OTLP collector in jaeger all-in-one and passed this through the nginx to enable CORS too, rather than running a separate collector. There's no reason it's done this way other than that I'd already set up the separate collector.)
Running docker compose up in this directory should be all you need.