If only sampling is set, use opentracer (!32813) · Merge requests · Administrator / sourcegraph

Administrator requested to merge dax/no_override_tracer into main Mar 19, 2022

Created by: daxmc99

Previously, we were overwriting the value here if it was not set which defaulted to "" We now correctly mark that as value that isn't set by the user

Test plan

Tested locally, ensured that

  "observability.tracing": {
    "sampling": "selective"
  },

in site-config causes tracing to be enabled