🚀 Setup Monitoring on EKS with Prometheus & Grafana Using Helm

This guide installs a full monitoring stack using kube-prometheus-stack, which includes:

• Prometheus
• Grafana
• AlertManager
• Node Exporter
• Kube State Metrics We also expose Prometheus & Grafana via LoadBalancer for easy access.

Installing Monitoring Tools on EKS

1. Create values.yaml for Custom Configuration

2. Paste the following configuration

# values.yaml for kube-prometheus-stack

alertmanager:
  enabled: false

prometheus:
  prometheusSpec:
    service:
      type: LoadBalancer
    storageSpec:
      volumeClaimTemplate:
        spec:
          accessModes:
            - ReadWriteOnce
          resources:
            requests:
              storage: 5Gi
  additionalScrapeConfigs:
    - job_name: node-exporter
      static_configs:
        - targets:
            - node-exporter:9100
    - job_name: kube-state-metrics
      static_configs:
        - targets:
            - kube-state-metrics:8080

grafana:
  enabled: true
  service:
    type: LoadBalancer
  adminUser: admin
  adminPassword: admin123

prometheus-node-exporter:
  service:
    type: LoadBalancer

kube-state-metrics:
  enabled: true
  service:
    type: LoadBalancer

Note: Grafana admin credentials are defined in this file.

3. Install Prometheus & Grafana Using Helm

helm upgrade --install monitoring prometheus-community/kube-prometheus-stack \
  -f values.yaml \
  -n monitoring \
  --create-namespace

4. Patch Services to Use LoadBalancer (Optional but Recommended)

kubectl patch svc monitoring-kube-prometheus-prometheus -n monitoring \
  -p '{"spec": {"type": "LoadBalancer"}}'

kubectl patch svc monitoring-kube-state-metrics -n monitoring \
  -p '{"spec": {"type": "LoadBalancer"}}'

kubectl patch svc monitoring-prometheus-node-exporter -n monitoring \
  -p '{"spec": {"type": "LoadBalancer"}}'

5. Get Service Endpoints

kubectl get svc -n monitoring

Look for:

• Grafana LoadBalancer IP
• Prometheus LoadBalancer IP

6. Access Grafana

• URLs: http://<grafana-loadbalancer-ip>
• Login: admin / admin123

7. Add Prometheus as a Data Source in Grafana

• Go to: Grafana → Settings → Data Sources → Add New
• Data source http://<prometheus-loadbalancer-ip>:9090

8. Use Built-in Dashboards The kube-prometheus-stack chart automatically ships dozens of dashboards:

• Node metrics
• Pod resource usage
• Cluster summary
• API server metrics Simply open Grafana → Dashboards → Browse.

🎯 You Now Have Full Monitoring on EKS

• Prometheus scraping cluster metrics
• Grafana visualizations
• Node exporter + kube-state-metrics integrated
• LB access for both services
• Persistent storage for Prometheus