Add OTEL config to Jaeger CR

[pavolloffay]

Resolves #1004

Notes:

• If the OTEL config is used with legacy Jaeger images it will cause errors - unknown flag.

A simple CR to test this PR. The collector should successfully deploy and it should use 14269 as HC port.

# setup an elasticsearch with `make es`
apiVersion: jaegertracing.io/v1
kind: Jaeger
metadata:
  name: simple-prod
spec:
  strategy: production
  collector:
    image: jaegertracing/jaeger-opentelemetry-collector:latest
    config:
      processors:
        queued_retry: {}
      extensions:
        health_check:
          port: 14269
      service:
        pipelines:
          traces:
            processors: [queued_retry]
  storage:
    type: elasticsearch
    options:
      es:
        server-urls: http://elasticsearch:9200

[codecov]

Codecov Report

Merging #1056 into master will decrease coverage by 0.09%.
The diff coverage is 59.58%.

@@            Coverage Diff             @@
##           master    #1056      +/-   ##
==========================================
- Coverage   64.61%   64.51%   -0.10%     
==========================================
  Files          84       85       +1     
  Lines        6721     6860     +139     
==========================================
+ Hits         4343     4426      +83     
- Misses       2236     2277      +41     
- Partials      142      157      +15     

Impacted Files	Coverage Δ
pkg/apis/jaegertracing/v1/jaeger_types.go	100.00% <ø> (ø)
pkg/apis/jaegertracing/v1/zz_generated.openapi.go	0.00% <0.00%> (ø)
pkg/strategy/all_in_one.go	90.69% <0.00%> (-4.43%)	⬇️
pkg/strategy/production.go	97.14% <0.00%> (-2.86%)	⬇️
pkg/strategy/streaming.go	96.96% <0.00%> (-1.50%)	⬇️
pkg/deployment/collector.go	96.77% <28.57%> (-3.23%)	⬇️
pkg/deployment/ingester.go	96.24% <28.57%> (-3.76%)	⬇️
pkg/deployment/agent.go	96.18% <50.00%> (-3.82%)	⬇️
pkg/inject/sidecar.go	94.17% <54.54%> (-2.47%)	⬇️
pkg/config/otelconfig/otelconfig.go	82.35% <82.35%> (ø)
... and 2 more

---

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[objectiser]

Another like this, but with config - and expected: false.

[pavolloffay]

I am not sure what you mean. I have added some case, I think there are all the combinations now.

[pavolloffay]

@objectiser could you please have a look again.

I have added the volumes and volume mounts to the agent from the common spec. Alternatively, we can only add the volumes and mounts for the otelconfig.

[pavolloffay]

I had to add volumes to the pod spec and mounts to agent sidecar container

[pavolloffay]

The same as for sidecar, I had to add volumes and mounts to the agent container.

[objectiser]

LGTM - although e2e test failure needs checking.

[pavolloffay]

All tests passed, the coverage is red, however when I dig in into codecov UI I cannot find the uncovered lines.

[romilpunetha]

@pavolloffay
Any documentation on what all key-values does config and service section accept?

[pavolloffay]

It's OTEL config you can find it in https://github.com/open-telemetry/opentelemetry-collector