MDmdaniel·Nov 27, 2024
> - Helm sucks, but so does Kustomize
Helm != Kubernetes, FWIW
I'd argue that Kustomize is the bee's knees but editor support for it sucks (or, I'd also accept that the docs suck, and/or are missing a bazillion examples so us mere mortals could enlighten ourselves to what all nouns and verbs are supported in the damn thing)
> how many times your app OOMed in the last hour.
heh, I'd love to hear those "shell scripts are all I need" folks chime in on how they'd get metrics for such a thing :-D (or Nomad, for that matter)
That said, one of the other common themes in this discussion is how Kubernetes jams people up because there are a bazillion ways of doing anything, with wildly differing levels of "it just works" versus "someone's promo packet that was abandoned". Monitoring falls squarely in the bazillion-ways category, in that it for sure
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does not come batteries included but there are a lot of cool toys if one has the cluster headroom to install them
https://github.com/google/cadvisor/blob/v0.51.0/metrics/prom... which is allegedly exposed in kubelet since 2022 https://github.com/kubernetes/kubernetes/pull/108004 (I don't have a cluster in front of me to test it, though)
https://github.com/kubernetes/kube-state-metrics/blob/v2.14.... shows the metric that KSM exposes in kube_pod_container_status_terminated_reason
https://opentelemetry.io/docs/specs/semconv/attributes-regis... shows the OTel version of what I suspect is that same one
And then in the "boil the ocean" version one could egress actual $(kubectl get events -w) payloads if using something where one is not charged by the metric: https://github.com/open-telemetry/opentelemetry-collector-co...