18 lines
1 KiB
Markdown
18 lines
1 KiB
Markdown
# OpenTelemetry Collector for development
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This directory contains a docker compose file that starts a jaeger all-in-one instance
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with an in-memory database, along with a standalone OpenTelemetry collector that forwards
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traces into the jaeger. Jaeger has a built-in OpenTelemetry collector, but it can't be
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configured to send CORS headers so can't be used from a browser. This sets the config on
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the collector to send CORS headers.
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This also adds an nginx to add CORS headers to the jaeger query endpoint, such that it can
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be used from webapps like stalk (https://deniz.co/stalk/). The CORS enabled endpoint is
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exposed on port 16687. To use stalk, you should simply be able to navigate to it and add
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http://127.0.0.1:16687/api as a data source.
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(Yes, we could enable the OTLP collector in jaeger all-in-one and passed this through
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the nginx to enable CORS too, rather than running a separate collector. There's no reason
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it's done this way other than that I'd already set up the separate collector.)
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Running `docker compose up` in this directory should be all you need.
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