Endpoints and endpoint slices in Kubernetes - Mini Project: Build & Apply

Working with Kubernetes Endpoints and EndpointSlices

📖 Scenario: You are managing a Kubernetes cluster where you want to understand how services connect to pods. Kubernetes uses Endpoints and EndpointSlices to track which pods are behind a service.In this project, you will create a simple service and then explore its endpoints and endpoint slices to see how Kubernetes tracks pod IPs.

🎯 Goal: Learn how to list and inspect Kubernetes Endpoints and EndpointSlices for a service to understand pod connectivity.

📋 What You'll Learn

Use kubectl commands to create and inspect resources

Create a simple service and deployment

List endpoints and endpoint slices for the service

Understand the output showing pod IP addresses

💡 Why This Matters

🌍 Real World

Kubernetes uses Endpoints and EndpointSlices to keep track of which pods are available for a service. This helps route traffic correctly inside the cluster.

💼 Career

Understanding Endpoints and EndpointSlices is important for Kubernetes administrators and DevOps engineers to troubleshoot service connectivity and optimize cluster networking.

1

Create a Deployment with 2 Pods

Use kubectl create deployment to create a deployment named myapp with image nginx and scale it to 2 replicas using kubectl scale.

Kubernetes

# Create deployment named myapp with nginx image
# Your code here

Need a hint?

First create the deployment, then scale it to 2 pods.

2

Create a Service to Expose the Deployment

Create a service named myapp-service of type ClusterIP that targets the deployment myapp on port 80 using kubectl expose deployment.

Kubernetes

kubectl create deployment myapp --image=nginx
kubectl scale deployment myapp --replicas=2
# Expose the deployment with a ClusterIP service named myapp-service on port 80
# Your code here

Need a hint?

Use kubectl expose deployment with the correct name, port, and type.

3

List Endpoints for the Service

Use kubectl get endpoints myapp-service to list the endpoints showing pod IPs behind the service.

Kubernetes

kubectl create deployment myapp --image=nginx
kubectl scale deployment myapp --replicas=2
kubectl expose deployment myapp --name=myapp-service --port=80 --type=ClusterIP
# List endpoints for myapp-service
# Your code here

Need a hint?

This command shows the IP addresses of pods behind the service.

4

List EndpointSlices for the Service

Use kubectl get endpointslices -l kubernetes.io/service-name=myapp-service to list the EndpointSlices associated with the service.

Kubernetes

kubectl create deployment myapp --image=nginx
kubectl scale deployment myapp --replicas=2
kubectl expose deployment myapp --name=myapp-service --port=80 --type=ClusterIP
kubectl get endpoints myapp-service
# List EndpointSlices for myapp-service
# Your code here

Need a hint?

Use the label selector to find EndpointSlices for the service.