Monitoring Microservice Application on AWS EKS with Prometheus and Grafana

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Observability is critical for modern cloud-native applications, and a well-configured monitoring stack ensures smooth operations. Prometheus and Grafana provide a powerful open-source solution for collecting, analyzing, and visualizing metrics in Kubernetes environments like AWS Elastic Kubernetes Service (EKS).

You Should Know:

1. Setting Up Prometheus on AWS EKS

Prometheus scrapes metrics from your microservices and Kubernetes nodes. Install it using Helm:

helm repo add prometheus-community https://prometheus-community.github.io/helm-charts 
helm repo update 
helm install prometheus prometheus-community/prometheus --namespace monitoring --create-namespace 

Verify installation:

kubectl get pods -n monitoring 

2. Deploying Grafana for Visualization

Grafana connects to Prometheus for dashboarding. Install it via Helm:

helm install grafana grafana/grafana --namespace monitoring 

Retrieve the admin password:

kubectl get secret --namespace monitoring grafana -o jsonpath="{.data.admin-password}" | base64 --decode ; echo 

Port-forward to access Grafana:

kubectl port-forward svc/grafana 3000:80 -n monitoring 

Visit `http://localhost:3000` and log in.

3. Configuring Prometheus Data Source in Grafana

1. Navigate to Configuration > Data Sources.

  1. Add Prometheus with URL: `http://prometheus-server.monitoring.svc.cluster.local:80`.

4. Importing Kubernetes Dashboards

Use pre-built dashboards like Kubernetes Cluster Monitoring (ID: 3119) via Import Dashboard in Grafana.

5. Monitoring Custom Microservices

Expose metrics in your app using Prometheus client libraries (e.g., Python):

from prometheus_client import start_http_server, Counter 
REQUEST_COUNT = Counter('http_requests_total', 'Total HTTP Requests')

@route('/metrics') 
def handle_request(): 
REQUEST_COUNT.inc() 
return "OK" 

6. Alerting with Alertmanager

Configure alerts in `prometheus.yml`:

alerting: 
alertmanagers: 
- static_configs: 
- targets: ['alertmanager:9093'] 

What Undercode Say:

Prometheus + Grafana is a battle-tested stack for Kubernetes observability. Key takeaways:
– Use Helm for easy deployment.
– Leverage pre-built dashboards for faster insights.
– Instrument apps with Prometheus client libraries.
– Always monitor CPU, memory, and custom business metrics.

Expected Output:

  • Prometheus metrics accessible at http://<prometheus-service>:9090.
  • Grafana dashboards visualizing pod health, resource usage, and traffic.

Prediction:

As Kubernetes adoption grows, integrated observability tools like OpenTelemetry may merge with Prometheus for unified monitoring.

Relevant URL:

Monitoring Microservices on AWS EKS with Prometheus and Grafana

IT/Security Reporter URL:

Reported By: Darryl Ruggles – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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