Health Checks in Kubernetes Part 3: Building Resilient Kubernetes Applications with Liveness and Readiness Health Checks

Photo by Bernd 📷 Dittrich on Unsplash

In this third and final article of our health checks series, we will explore how Liveness and Readiness Probes work together to ensure the stability and responsiveness of your Kubernetes applications. Each probe has a distinct role: Liveness Probes restart failing containers, while Readiness Probes temporarily stop routing traffic to unready Pods.

By the end of this tutorial, you will:

• Learn how to configure both Liveness and Readiness Probes in a C# API.
• Understand the specific roles of each probe and how they complement each other.
• Be able to test and monitor both probes in action to ensure your application remains healthy and responsive.

1. Why Use Health Checks in Kubernetes?

Health checks help maintain the availability and stability of applications in Kubernetes. There are two primary types of health probes:

• Liveness Probe: Ensures the application is still running. If the probe fails, Kubernetes will restart the container.
• Readiness Probe: Ensures the application is ready to handle traffic. If this probe fails, the Pod will be…