You can pass along timing data from every aspect of the request [1] currently there are approximately 20 events supported. You can also send over just about any

You can pass along timing data from every aspect of the request [1] currently there are approximately 20 events supported. You can also send over just about anything that can be stored within an HAProxy variable / header through a tag. Here's an example configuration for HAProxy (simple) [2] (advanced) [3] and the OpenTracing specific configuration (simple) [4] (advanced) [5]. I've included both simple and advanced configurations. [1] https://github.com/haproxy/haproxy/blob/master/addons/ot/README#L410 https://github.com/haproxy/haproxy/blob/master/addons/ot/REA... [2] https://github.com/haproxy/haproxy/blob/master/addons/ot/test/be/haproxy.cfg https://github.com/haproxy/haproxy/blob/master/addons/ot/tes... [3] https://github.com/haproxy/haproxy/blob/master/addons/ot/test/ctx/haproxy.cfg https://github.com/haproxy/haproxy/blob/master/addons/ot/tes... [4] https://github.com/haproxy/haproxy/blob/master/addons/ot/test/be/ot.cfg https://github.com/haproxy/haproxy/blob/master/addons/ot/tes... [5] https://github.com/haproxy/haproxy/blob/master/addons/ot/test/ctx/ot.cfg https://github.com/haproxy/haproxy/blob/master/addons/ot/tes...