Add logging collector to otel-cloud-stack chart

[rossmcdonald]

This PR adds a logging collector section to the otel-cloud-stack values, allowing users to collect Kubernetes logs and events and send them to SN Cloud Observability by setting logsCollector.enabled=true.

Note - I opted to create a new set of collectors for logging instead of piggybacking on the daemonCollector, even though they are both daemonsets. Let me know if we should merge the configs into that collector instead to avoid having two separate daemonsets.

[jaronoff97]

hey ross thanks for doing this! I would actually merge the two... we haven't been recommending running both in gateway mode (so you can scale telemetry signal independently) to customers but for a daemonset where you just collect all data on a node, i expect it to be far more uniform.

[rossmcdonald]

@jaronoff97 Do you have a preference for how you think the collectors should be merged? Should we just always have logging enabled by default and leave it to the user to remove the relevant section, or should I put it behind a flag of some kind?

The problem I see with putting it behind a flag (at least the way I was thinking of doing it) is that it will require putting the log-specific portion of the config within a template, which will make customizing (for example, adding EKS resource enrichment) much more difficult.

Let me know if you want to sync real quick on the best path forward.

[jaronoff97]

hey ross lets pair on it :) dm me on slack

[jaronoff97]

Hey ross, for now im going to merge this and then we can centralize them all in the future.