[enhancement] Opentelemetry exporter Support

[Syndlex]

Describe the enhancement you'd like

Hey,

My company wants to use these Dashboards with the Opentelemetry collector.
We forked the Dashboards internally and want to contribute the changes of we did.

Bevor I start working, I wanted to ask if you are willing to support the metrics from otel collector.

There is some stuff where I don't know if our Queries are 100% correct and there is still a lot of changes.

Additional context

No response

[dotdc]

Hi @Syndlex,

Yes, of course! Feel free to add OpenTelemetry collector support, just make sure to test your changes.
If you have any questions or run into technical issues, we can discuss them here.

[Syndlex]

Hey @dotdc,

this sounds great!

Otel is using these semantic conventions for k8s https://opentelemetry.io/docs/specs/semconv/resource/k8s/
So the labels are not the same as in this repository.

Loki uses grafonnet mixins to make the Dashboards configurable.
https://github.com/grafana/loki/blob/main/production/loki-mixin/config.libsonnet

Do you want to support something like this?