Container metrics (cpu, memory)

[fopina]

Question

I'm migrating from fluentbit and I was happy to see better maintainers in Vector yet as soon as I start migrating I bump into something missing: container metrics (coming from fluentbit https://docs.fluentbit.io/manual/data-pipeline/inputs/docker-metrics)

I would expect, even if not having an official source for this, to be something widely discussed and documented, how to achieve it via other sources and transforms but, to my surprise, I haven't been able to find anything concrete...

It seems there was at some point a source for this and then dropped (couldn't find why or what the proposed alternative was).
It would seem I could use host metrics cgroups but then I need, somehow, to extract the POD id from the cgroup name and enrich it with k8s data, so I can properly query by pod name. ChatGPT made up a "k8s_metadata" transform that does not exist and I could not find anything similar.

I'm down to thinking I need to run some custom prom exporter that just queries k8s metrics API but I'd like to know if that's realy the only way (an extra pod over something built in vector)

Thanks

Vector Config

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Vector Logs

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