add support for proxy

[hrittikhere]

Description: <Describe what has changed.
Adding a feature to support proxy configuration field in all exporters

Link to tracking Issue: #5761

Testing: < Describe what testing was performed and which tests were added.>

Documentation: < Describe the documentation added.>

[jpkrohling]

@hrittikhere, do you have an status update regarding this one?

[jpkrohling]

@hrittikhere, are you able to fix the merge conflicts?

[hrittikhere]

@jpkrohling does this looks good?

[hrittikhere]

@jpkrohling did you get a chance to look into it? Let me know if there's any changes :)

[jpkrohling]

LGTM!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (d77d2c2) 90.31% compared to head (913468e) 91.55%.
Report is 138 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8339      +/-   ##
==========================================
+ Coverage   90.31%   91.55%   +1.24%     
==========================================
  Files         308      316       +8     
  Lines       15998    17117    +1119     
==========================================
+ Hits        14448    15672    +1224     
+ Misses       1259     1150     -109     
- Partials      291      295       +4     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[jpkrohling]

Apparently, there's still a linting failure:

make[2]: Entering directory '/home/runner/work/opentelemetry-collector/opentelemetry-collector/config/confighttp'
/home/runner/work/opentelemetry-collector/opentelemetry-collector/.tools/golangci-lint run
confighttp.go:147: File is not `gofmt`-ed with `-s` (gofmt)
make[2]: *** [../../Makefile.Common:74: lint] Error 1
make[1]: *** [Makefile:123: config/confighttp] Error 2
make[1]: *** Waiting for unfinished jobs....
  
Error: confighttp.go:1[41](https://github.com/open-telemetry/opentelemetry-collector/actions/runs/6330517394/job/17424908838?pr=8339#step:5:42):13: shadow: declaration of "err" shadows declaration at line 108 (govet)
		proxyURL, err := url.Parse(hcs.ProxyURL)

[andrzej-stencel]

Changelog entry is missing, right? https://github.com/open-telemetry/opentelemetry-collector/blob/main/CONTRIBUTING.md#adding-a-changelog-entry

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 14 days.

[hrittikhere]

Sure I'll add the changelog entry over the weekend. Sorry I missed the comments :(

[hrittikhere]

I tried fixing the lint and I think it works. Maybe we can re run?

[build-and-test/lint             ]   ✅  Success - Main goimpi
[build-and-test/lint             ] ⭐ Run Post Cache Go
[build-and-test/lint             ]   🐳  docker exec cmd=[node /var/run/act/actions/actions-cache@v3/dist/save/index.js] user= workdir=
[build-and-test/lint             ]   💬  ::debug::Cache state/key: go-cache-linux-54ab5a16ba9fdf26f1dc2d13615853606f75f614eb63f91ef59afcc63707bb55
| Cache hit occurred on the primary key go-cache-Linux-54ab5a16ba9fdf26f1dc2d13615853606f75f614eb63f91ef59afcc63707bb55, not saving cache.
[build-and-test/lint             ]   ✅  Success - Post Cache Go
[build-and-test/lint             ] ⭐ Run Post Setup Go
[build-and-test/lint             ]   🐳  docker exec cmd=[node /var/run/act/actions/actions-setup-go@v4/dist/cache-save/index.js] user= workdir=
| [command]/opt/hostedtoolcache/go/1.20.10/x64/bin/go env GOMODCACHE
| [command]/opt/hostedtoolcache/go/1.20.10/x64/bin/go env GOCACHE
| /root/go/pkg/mod
| /root/.cache/go-build
[build-and-test/lint             ]   💬  ::debug::Checking zstd --quiet --version
[build-and-test/lint             ]   💬  ::debug::1.4.8
[build-and-test/lint             ]   💬  ::debug::zstd version: 1.4.8
[build-and-test/lint             ]   💬  ::debug::implicitDescendants 'false'
[build-and-test/lint             ]   💬  ::debug::followSymbolicLinks 'true'
[build-and-test/lint             ]   💬  ::debug::implicitDescendants 'false'
[build-and-test/lint             ]   💬  ::debug::omitBrokenSymbolicLinks 'true'
[build-and-test/lint             ]   💬  ::debug::Search path '/root/go/pkg/mod'
[build-and-test/lint             ]   💬  ::debug::Search path '/root/.cache/go-build'
[build-and-test/lint             ]   💬  ::debug::Matched: ../../root/go/pkg/mod
[build-and-test/lint             ]   💬  ::debug::Matched: ../../root/.cache/go-build
[build-and-test/lint             ]   💬  ::debug::Cache Paths:
[build-and-test/lint             ]   💬  ::debug::["../../root/go/pkg/mod","../../root/.cache/go-build"]
[build-and-test/lint             ]   💬  ::debug::Archive Path: /tmp/236e3b8b-ebb9-41b0-b8ee-c3d54308cc3d/cache.tzst
| [command]/usr/bin/tar --posix -cf cache.tzst --exclude cache.tzst -P -C /workspaces/opentelemetry-collector --files-from manifest.txt --use-compress-program zstdmt
[build-and-test/lint             ]   💬  ::debug::File Size: 357739713
[build-and-test/lint             ]   💬  ::debug::Reserving Cache
[build-and-test/lint             ]   💬  ::debug::Resource Url: http://172.16.5.4:43717/_apis/artifactcache/caches
ERRO[0486] POST /_apis/artifactcache/caches: already exist  module=artifactcache
[build-and-test/lint             ]   🚧  ::warning::Failed to save: {"error":"already exist"}
[build-and-test/lint             ]   ✅  Success - Post Setup Go
[build-and-test/lint             ] 🏁  Job succeeded

[jpkrohling]

Sure, build started!

[hrittikhere]

I think we're good to go? The build-and-test / test-coverage (pull_request) Failing after 6m fails, but we have tests in place? :)

[jpkrohling]

We just need an @open-telemetry/collector-maintainers to review and push the button!

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 14 days.

[hrittikhere]

Can we run the test coverage once more? :)

[jpkrohling]

Thank you for your patience and perseverance, @hrittikhere .

[hrittikhere]

Thanks @jpkrohling for the help throughout! Couldn't have done it without you :)