[Feature]: Support Jaeger-v2

[yurishkuro]

Requirement

Once Jaeger-v2 (jaegertracing/jaeger#4843) reaches production readiness and feature parity, we should support it in the operator.

Problem

Jaeger-v2 is based on OpenTelemetry Collector and uses completely different configuration mechanism:

• all configuration is done via config files, not CLI flags or env vars (although some env vars are supported by telemetry SDKs)
• it is a single binary that can be deployed into different roles (collector, query, etc.) also based on configuration, but in this case with structural config changes, not just tweaking parameters

Proposal

I would like to hear what maintainers of this repo think about the best approach. Can we come up with a roadmap of how jaeger-v2 will be supported by the operator? Is there some common approach we can use with the OTEL operator?

Open questions

• Is it worth maintaining both helm charts and operator?

[dipankardas011]

not sure if we actually need helm charts as we have to deploy via the kubernetes operator method

still need to have a discussion with otel operator folks