Introduce opentelemetry

[hlts2]

Description:

WHAT

I introduced opentelemetry and deleted opencensus package.

WHY

we need to introduced opentelemetry for observability.

Related Issue:

How Has This Been Tested?:

Environment:

• Go Version: 1.18.3
• Docker Version: 20.10.8
• Kubernetes Version: 1.22.0
• NGT Version: 1.14.7

Types of changes:

• [ ] Bug fix [type/bug]
• [ ] New feature [type/feature]
• [ ] Add tests [type/test]
• [ ] Security related changes [type/security]
• [ ] Add documents [type/documentation]
• [ ] Refactoring [type/refactoring]
• [ ] Update dependencies [type/dependency]
• [ ] Update benchmarks and performances [type/bench]
• [ ] Update CI [type/ci]

Changes to Core Features:

• [ ] Have you added an explanation of what your changes do and why you'd like us to include them?
• [ ] Have you written new tests for your core changes, as applicable?
• [ ] Have you successfully ran tests with your changes locally?

Checklist:

• [ ] I have read the CONTRIBUTING document.
• [ ] I have checked open Pull Requests for the similar feature or fixes?
• [ ] I have added tests and benchmarks to cover my changes.
• [ ] I have ensured all new and existing tests passed.
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have updated the documentation accordingly.

[vdaas-ci]

[CHATOPS:HELP] ChatOps commands.

• :ok_woman: /approve - approve
• :love_letter: /changelog - replace the PR body by changelog details
• :bento: /format - format codes and add licenses
• :white_check_mark: /gen-test - generate test codes
• :label: /label - add labels
• :rewind: /rebase - rebase main
• :end: :two: :end: /label actions/e2e-deploy - run E2E deploy & integration test

[codecov[bot]]

Codecov Report

Base: 50.23% // Head: 30.32% // Decreases project coverage by -19.91% :warning:

Coverage data is based on head (416dec0) compared to base (97eed29). Patch coverage: 55.37% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1778       +/-   ##
===========================================
- Coverage   50.23%   30.32%   -19.92%     
===========================================
  Files         231      370      +139     
  Lines       13464    33689    +20225     
===========================================
+ Hits         6764    10216     +3452     
- Misses       6499    23054    +16555     
- Partials      201      419      +218     

Impacted Files	Coverage Δ
cmd/tools/cli/loadtest/main.go	0.00% <ø> (ø)
hack/benchmark/assets/x1b/loader.go	0.00% <ø> (ø)
hack/benchmark/internal/assets/dataset.go	0.00% <ø> (ø)
hack/benchmark/internal/operation/insert.go	0.00% <ø> (ø)
hack/benchmark/internal/operation/operation.go	0.00% <ø> (ø)
hack/benchmark/internal/operation/option.go	0.00% <ø> (ø)
hack/benchmark/internal/operation/remove.go	0.00% <ø> (ø)
hack/benchmark/internal/operation/search.go	0.00% <ø> (ø)
hack/benchmark/internal/operation/util.go	0.00% <ø> (ø)
hack/license/gen/main.go	0.00% <0.00%> (ø)
... and 244 more

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

:umbrella: View full report at Codecov.
:loudspeaker: Do you have feedback about the report comment? Let us know in this issue.

[cloudflare-workers-and-pages[bot]]

Deploying with    Cloudflare Pages

Latest commit:	416dec0
Status:	✅  Deploy successful!
Preview URL:	https://55078826.vald.pages.dev
Branch Preview URL:	https://feature-observability-add-ob.vald.pages.dev

View logs

[vdaas-ci]

[WARNING:INTCFG] Changes in interal/config may require you to change Helm charts. Please check.