PT-5130 Make ochttp IsPublicEndpoint Configurable

[s4nji]

What does this PR do?

Allows IsPublicEndpoint boolean used in opencensus' ochttp plugin to be configured, in the case where Janus is not the entry point and incoming trace metadata is valuable.

Links and references

• https://github.com/census-instrumentation/opencensus-go/blob/59d1ce35d30f3c25ba762169da2a37eab6ffa041/plugin/ochttp/server.go#L63-L67

[codecov[bot]]

Codecov Report

Merging #416 into master will decrease coverage by 0.02%. The diff coverage is 16.66%.

@@            Coverage Diff             @@
##           master     #416      +/-   ##
==========================================
- Coverage   40.48%   40.46%   -0.03%     
==========================================
  Files          76       76              
  Lines        2655     2659       +4     
==========================================
+ Hits         1075     1076       +1     
- Misses       1517     1520       +3     
  Partials       63       63

Impacted Files	Coverage Δ
pkg/proxy/register.go	0% <0%> (ø)	:arrow_up:
pkg/proxy/register_options.go	0% <0%> (ø)	:arrow_up:
pkg/config/specification.go	62.5% <100%> (+0.68%)	:arrow_up:

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 2bb9bbd...5fb40ea. Read the comment docs.

[vgarvardt]

👍

[antonu17]

+1