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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.
- 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 ✅
