Operator | Enable/Disable switch for OTEL presets

[jsbroks]

Today:

The OTEL chart defines two sections with presets:

First
Second

Those presets require a set of hostPath volumes that are defined here:

Deamonset

Some customers do not allow the use of hostPath volumes on their clusters.

Expectation:

It must be possible to disable the presets (only the presets, not otel entirely) and if they are disabled then there is no need for hostPath volumes and therefore those should not be created/mounted.

[abhinavg6]

Pending discussion between @danielpanzella and @jsbroks on how to think about OTEL based logging in general.

[mkaesz-wandb]

We tried to disable the logs:

  otel:
      install: true
      daemonset:
        install: true
        presets:
          receivers:
            logsCollection: false 

but this results in:

Error: invalid configuration: service::pipelines::logs: references receiver "filelog" which is not configured

2024/12/03 09:31:01 collector server run finished with error: invalid configuration: service::pipelines::logs: references receiver "filelog" which is not configured

Stream closed EOF for wandb-app/wandb-otel-daemonset-l8tsg (daemonset)  

[jsbroks]

Could we wrap these mounts in a boolean?

@theishshah could you scope this and hand it off