Support spanmetrics connector by default

[albertteoh]

Which problem is this PR solving?

• Supports the new spanmetrics connector by default.
• Some local developer improvements.

Description of the changes

• Defaults the PROMETHEUS_QUERY_SUPPORT_SPANMETRICS_CONNECTOR parameter to true.
• The next release will remove this configuration and not support the spanmetrics processor.
• Removes the use of the deprecated jaeger exporter in OTEL config. For more details, please refer to: Deprecate jaeger exporters. open-telemetry/opentelemetry-specification#2858.
• Simplifies the Makefile by:
  • Providing defaults in the docker-compose.yml file to prefer the spanmetrics connector.
  • Removing the run target in favour of docker compose up.
  • Removing the run- prefix of the remaining targets.

How was this change tested?

• Tested the following commands to confirm metrics are visible in the Monitor tab:

$ make build
$ make dev
$ make dev-processor
$ docker compose up

# No longer works
$ make run

Checklist

• I have read https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md
• I have signed all commits
  - [] I have added unit tests for the new functionality
• I have run lint and test steps successfully
  • for jaeger: make lint test
  • for jaeger-ui: yarn lint and yarn test

[albertteoh]

This is the main (breaking) change.

The other changes relate to local developer improvements with a similar theme of defaulting to the spanmetrics connector as well.

If we feel those changes should be decoupled into separate PRs, I'm happy to break them up.

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.01% 🎉

Comparison is base (7a6bae2) 97.04% compared to head (e926a47) 97.05%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4704      +/-   ##
==========================================
+ Coverage   97.04%   97.05%   +0.01%     
==========================================
  Files         301      301              
  Lines       17880    17880              
==========================================
+ Hits        17352    17354       +2     
+ Misses        423      422       -1     
+ Partials      105      104       -1     

Flag	Coverage Δ
unittests	97.05% <100.00%> (+0.01%)	⬆️

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Files Changed	Coverage Δ
plugin/metrics/prometheus/options.go	100.00% <100.00%> (ø)

... and 2 files with indirect coverage changes

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[albertteoh]

jaeger exporter is deprecated, hence the switch to otlp exporter.