Prototype sending product telemetry

[pleshakov]

Proposed changes

Problem:

• Understand how to send product telemetry using OpenTelemerty
• Note: OpenTelemetry is required by the backend (F5 Data Fabric)

Solution:

• Use OpenTelemetry traces to send some telemetry data

Note: an offline demo/presentation will follow this prototype

Demo instructions:

• Install OTel collector using /otel-collector/README.md instructions
• Install NGF, 1 replica.
• After NGF starts, it will send telemetry data once.
• To show that NGF sends the data:
  • In NGF log, look for generated traces
  • In the OTel collector log, look for received traces.
    Write a clear and concise description that helps reviewers understand the purpose and impact of your changes. Use the
    following format:

Note: linting errors are ok

Closes #1213

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

[sjberman]

From a high level I think the approach makes sense. I agree with your offline comment about the idea of using traces to send a bunch of metadata is a little weird, but it's an easy way to ensure the format and protocol is standardized (without creating something completely new). It allows us to use existing libraries.