Understanding Kubernetes: Part 13 -Services

If you’ve been following our Kubernetes series 2025, welcome back! For new readers, check out Part 3: Understanding Kubernetes: Part 12-Peristent Volume Claim

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What is a Service in Kubernetes?

A Kubernetes Service is a way to expose a group of Pods and provide a stable IP and DNS name for accessing them. It enables communication within your application or with the outside world.

For example:

If you have a backend service and need a reliable way for the frontend to communicate with it, a Service ensures that the backend Pods can be accessed via a stable IP or DNS name, even if individual Pods are recreated or fail.

Service Capabilities:

• Stable Network Identity: Provides a fixed IP and DNS name to a group of Pods.
• Load Balancing: Distributes traffic evenly across the Pods it manages.
• Pod Discovery: Automatically discovers and routes to Pods that match its selector labels.

Types of Services:

• ClusterIP: Exposes the Service internally within the cluster.
• NodePort: Exposes the Service on each node’s IP…