Prometheus Adapter for Kubernetes Metrics APIs: Difference between revisions

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helm install -n prometheus prometheus-adapter prometheus-community/prometheus-adapter -f ./prometheus-adapter-overlay.yaml:
helm install -n prometheus prometheus-adapter prometheus-community/prometheus-adapter -f ./prometheus-adapter-overlay.yaml
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Revision as of 02:15, 15 October 2020

External

Internal

Overview

The Prometheus adapter is a Kubernetes Aggregation Layer extension.

Metrics and Autoscaling PrometheusAdapter.png

Helm Installation

https://github.com/prometheus-community/helm-charts/tree/main/charts/prometheus-adapter

Install Prometheus first.

The adapter will be installed in the same namespace as Prometheus.

helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm search repo prometheus-community
helm install -n prometheus prometheus-adapter prometheus-community/prometheus-adapter -f ./prometheus-adapter-overlay.yaml

See Configuration below for prometheus-adapter-overlay.yaml.

Test installation:

kubectl get --raw /apis/custom.metrics.k8s.io/v1beta1 | jq
{
  "kind": "APIResourceList",
  "apiVersion": "v1",
  "groupVersion": "custom.metrics.k8s.io/v1beta1",
  "resources": []
}

Configuration

https://github.com/prometheus-community/helm-charts/tree/main/charts/prometheus-adapter#configuration

Use the following prometheus-adapter-overlay.yaml:

helm show values prometheus-community/prometheus-adapter > ~/tmp/prometheus-adapter-overlay.yaml

Increase log level when installing the chart.

Troubleshooting

tail the logs, Prometheus connection refused is reported there.