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Configuring Probes for a Kubernetes Pod

Kubernetes is a powerful tool when it comes to keeping your containers running. It can automatically manage the process of restarting containers when they fail, and it can also manage network traffic to ensure only healthy and running containers are used to serve incoming requests. One way to gain even more control over these kinds of automation is through the use of liveness and readiness probes. In this lab, you will have the opportunity to work with liveness and readiness probes by configuring them for a pod.

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Lab platform
Lab Info
Level
Intermediate
Last updated
Sep 12, 2025
Duration
15m

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Table of Contents
  1. Challenge

    Create a Probe to Detect and Restart Unhealthy Containers

    Edit the pod descriptor to add a liveness probe:

    vi candy-service-pod.yml
    
    apiVersion: v1
    kind: Pod
    metadata:
      name: candy-service
    spec:
      containers:
      - name: candy-service
        image: linuxacademycontent/candy-service:2
        livenessProbe:
          httpGet:
            path: /healthz
            port: 8081
    
  2. Challenge

    Create a Probe to Detect When the Container is Ready to Service Requests

    Create a readiness probe for the pod.

    apiVersion: v1
    kind: Pod
    metadata:
      name: candy-service
    spec:
      containers:
      - name: candy-service
        image: linuxacademycontent/candy-service:2
        livenessProbe:
          httpGet:
            path: /healthz
            port: 8081
        readinessProbe:
          httpGet:
            path: /
            port: 80
    

    Create the pod in the cluster:

    kubectl apply -f candy-service-pod.yml
    
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