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77 lines
1.8 KiB
Markdown
77 lines
1.8 KiB
Markdown
# Grafana on Kubernetes using Helm
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## Table of contents <!-- omit in toc -->
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1. [Usage](#usage)
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1. [Gotchas](#gotchas)
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1. [Further readings](#further-readings)
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## Usage
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Installation:
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1. add the repository:
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```sh
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helm repo add grafana https://grafana.github.io/helm-charts
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helm repo update
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```
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1. install the release:
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```sh
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helm upgrade --install --namespace monitoring --create-namespace grafana grafana/grafana
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```
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Get the admin user's password:
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```sh
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kubectl get secret --namespace monitoring grafana -o jsonpath="{.data.admin-password}" | base64 --decode ; echo
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```
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The Grafana server can be accessed via port 80 on `grafana.monitoring.svc.cluster.local` from within the cluster.
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To get the external URL:
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```sh
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export POD_NAME=$(kubectl get pods --namespace monitoring -l "app.kubernetes.io/name=grafana,app.kubernetes.io/instance=grafana" -o jsonpath="{.items[0].metadata.name}")
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kubectl --namespace monitoring port-forward "${POD_NAME}" 3000
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```
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Clean up:
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```sh
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helm delete --namespace monitoring grafana
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kubectl delete namespace --ignore-not-found monitoring
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```
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Access a Prometheus instance in the same namespace using `http://prometheus-server`
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Get the default values from the updated chart
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```sh
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helm inspect values grafana/grafana > "$(git rev-parse --show-toplevel)/kubernetes/helm/grafana/values.yaml"
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```
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## Gotchas
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Useful dashboards:
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- `3662`: prometheus 2.0 overview
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- `6417`: kubernetes cluster (prometheus)
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- `9632`: nextcloud
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## Further readings
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- Official [helm chart]
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- [Set up prometheus and ingress on kubernetes]
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<!--
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References
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-->
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<!-- Upstream -->
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[helm chart]: https://github.com/grafana/helm-charts/tree/main/charts/grafana
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<!-- Others -->
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[set up prometheus and ingress on kubernetes]: https://blog.gojekengineering.com/diy-how-to-set-up-prometheus-and-ingress-on-kubernetes-d395248e2ba
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