Question

cAdvisor on Prometheus with Kubernetes

I can’t get Prometheus to pick up on my cAdvisor metrics on DOKS. It shows as a successful scrape on the Prometheus dashboard, but I can’t get any container_* metrics to show up in the query. Any ideas?

Here’s my job config for cadvisor:

    - job_name: kubernetes-cadvisor
      honor_timestamps: true
      scrape_interval: 15s
      scrape_timeout: 10s
      metrics_path: /metrics
      scheme: https
      bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
      tls_config:
        ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
        insecure_skip_verify: true
      kubernetes_sd_configs:
      - role: node
      relabel_configs:
      - separator: ;
        regex: __meta_kubernetes_node_label_(.+)
        replacement: $1
        action: labelmap
      - source_labels: [__address__]
        separator: ;
        regex: ([^:]+)(?::\d+)?
        target_label: __address__
        replacement: $1:10250
        action: replace
      - separator: ;
        regex: (.*)
        target_label: __metrics_path__
        replacement: /metrics/cadvisor
        action: replace
      metric_relabel_configs:
      - source_labels: [namespace]
        separator: ;
        regex: ^$
        replacement: $1
        action: drop
      - source_labels: [pod_name]
        separator: ;
        regex: ^$
        replacement: $1
        action: drop

I’ve also tried the metric path as /metrics/cadvisor like some issues of Github have suggested.

This config was taken from the tutorial: https://www.digitalocean.com/community/tutorials/how-to-set-up-a-kubernetes-monitoring-stack-with-prometheus-grafana-and-alertmanager-on-digitalocean#step-6-—-configuring-the-monitoring-stack-optional


Submit an answer


This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Accepted Answer

pod_name and container_name were removed from cadvisor on 1.16. The metric_relabel_configs on pod_name is dropping the metrics. Try replace it with just pod.

See https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.16.md#removed-metrics

try using /metrics.It might work.

You can debug the target by going to the UI > Status > Targets. See if the target address is correct.

Try DigitalOcean for free

Click below to sign up and get $200 of credit to try our products over 60 days!

Sign up

Become a contributor for community

Get paid to write technical tutorials and select a tech-focused charity to receive a matching donation.

DigitalOcean Documentation

Full documentation for every DigitalOcean product.

Resources for startups and SMBs

The Wave has everything you need to know about building a business, from raising funding to marketing your product.

Get our newsletter

Stay up to date by signing up for DigitalOcean’s Infrastructure as a Newsletter.

New accounts only. By submitting your email you agree to our Privacy Policy

The developer cloud

Scale up as you grow — whether you're running one virtual machine or ten thousand.

Get started for free

Sign up and get $200 in credit for your first 60 days with DigitalOcean.*

*This promotional offer applies to new accounts only.