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Docs feedback: Scrape jobs can't authenticate with K8s #827

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vnugent opened this issue May 11, 2024 · 1 comment · Fixed by #829
Closed

Docs feedback: Scrape jobs can't authenticate with K8s #827

vnugent opened this issue May 11, 2024 · 1 comment · Fixed by #829
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type/docs Docs Squad label across all Grafana Labs repos

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@vnugent
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vnugent commented May 11, 2024 •
edited

URL

https://grafana.com/docs/alloy/latest/tasks/configure/configure-kubernetes/

Feedback

I’m following the Kubernetes docs to deploy Alloy on a k8s cluster. The alloy pods are running ok but they can’t authenticate with k8s.

ts=2024-05-10T17:24:12.68722559Z level=debug msg="Scrape failed" 
component_path=/ component_id=prometheus.scrape.default scrape_pool=prometheus.scrape.default 
target=http://172.31.5.182:10250/metrics err="server returned HTTP status 400 Bad Request

This article helps a lot. It's not documented anywhere in the official docs.

discovery.relabel "metrics_kubelet" {
...
}

prometheus.scrape "kubelet" {
        scheme = "https"
        tls_config {
            server_name = "kubernetes"
            ca_file = "/var/run/secrets/kubernetes.io/serviceaccount/ca.crt"
            insecure_skip_verify = false
        }
        bearer_token_file = "/var/run/secrets/kubernetes.io/serviceaccount/token"
 ...       
}
@vnugent vnugent added the type/docs Docs Squad label across all Grafana Labs repos label May 11, 2024
@hainenber hainenber mentioned this issue May 12, 2024
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@hainenber
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I made a PR to add an prometheus.scrape example for K8s auth. Let me know if it's looks good to you :D

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docs(prometheus/scrape): add example for K8s auth hainenber/alloy
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@vnugent @hainenber