Grafana

Prerequisites

This guide assumes you have the following prerequisites in place:

• Longhorn
• Authelia

Grafana

Grafana is an open-source platform for monitoring via dashboards. It can be used to visualize data from various sources.

Installation

1. Create the following directory structure for Homepage:

   grafana/
   ├── grafana-repo.yml
   ├── grafana-release.yml
   ├── grafana-pvc.yml
   └── grafana-ingress.yml

2. Create the grafana-repo.yml file with the following content:

   ---
   apiVersion: source.toolkit.fluxcd.io/v1
   kind: HelmRepository
   metadata:
     name: grafana-community
     namespace: flux-system
   spec:
     interval: 6h
     url: https://grafana-community.github.io/helm-charts

3. Create the grafana-release.yml file with the following content:

   ---
   apiVersion: helm.toolkit.fluxcd.io/v2
   kind: HelmRelease
   metadata:
     name: grafana
     namespace: monitoring
   spec:
     interval: 6h
     chart:
       spec:
         chart: grafana
         version: "11.3.6"
         sourceRef:
           kind: HelmRepository
           name: grafana-community
           namespace: flux-system
         interval: 6h
     values:
       persistence:
         enabled: true
         existingClaim: grafana-longhorn
       deploymentStrategy:
         type: Recreate

4. Create a persistent volume claim for grafana using the following content in grafana-pvc.yml:

   ---
   apiVersion: v1
   kind: PersistentVolumeClaim
   metadata:
     name: grafana-longhorn
     namespace: monitoring
   spec:
     resources:
       requests:
         storage: 2Gi
     volumeMode: Filesystem
     accessModes:
       - ReadWriteOnce
     storageClassName: longhorn

5. Create an ingress for grafana:

   ---
   apiVersion: networking.k8s.io/v1
   kind: Ingress
   metadata:
     name: grafana-ingress
     namespace: monitoring
     labels:
       app.kubernetes.io/name: grafana-ingress
     annotations:
       cert-manager.io/cluster-issuer: letsencrypt-cloudflare
       traefik.ingress.kubernetes.io/router.middlewares: tools-authelia@kubernetescrd
       traefik.ingress.kubernetes.io/router.entrypoints: websecure
   spec:
     ingressClassName: traefik
     tls:
     - hosts:
       - grafana.example.com
       secretName: grafana-tls
     rules:
     - host: grafana.example.com
       http:
         paths:
         - path: /
           pathType: Prefix
           backend:
             service:
               name: grafana
               port:
                 number: 80

6. Commit and push the files to your git repository. Flux will deploy Grafana to your cluster.