- A Cloud Guru
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.
Table of Contents
Create a Probe to Detect and Restart Unhealthy Containers
Edit the pod descriptor to add a liveness probe:
apiVersion: v1 kind: Pod metadata: name: candy-service spec: containers: - name: candy-service image: linuxacademycontent/candy-service:2 livenessProbe: httpGet: path: /healthz port: 8081
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
What's a lab?
Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.