closes APM-7, APM-8
flag = none
hardcode set to a very low % of client sampling by default
to keep performance impact low.
test plan:
* make sure telemetry is arriving in datadog APM
* ensure trace traffic level is low, only from one cluster
(proves settings are working)
* canvas should not show degradation in response times post deployment
Change-Id: Ifca8d3f6239d6c4e70098dd2b68b9c2a1950e121
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/230064
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>
Reviewed-by: Simon Williams <simon@instructure.com>
QA-Review: Michael Hargiss <mhargiss@instructure.com>
Product-Review: Ethan Vizitei <evizitei@instructure.com>