- A Cloud Guru
Troubleshooting Scheduling in Kubernetes Deployments
You are a container engineer at Cube4Lyf, an e-gaming platform geared towards puzzle and logic games. You've just been alerted that there's an issue with the deployment of a new web service to a staging cluster. The pods are stuck in a 'Pending' state. You need to investigate why the pods are not deploying and resolve the issue so the new web service can be assessed in the staging environment. There are a number of other resources currently active in the cluster, some are still needed, and others are not. You've been approved to delete any resources with the label `test=true`, if needed.
Table of Contents
Identify the Capacity of All Nodes and Compare to the Required Capacity for the New Web Service
Take a look at the
deployment.yamlon your lab vm. Run the command
kubectl apply -f deployment.yaml, and observe that it does not deploy both pod replicas. Using kubectl, identify the issue preventing the deployment.
Delete Pods with the Label ‘Test=True’ to Allow New Web Service Pods to Be Scheduled
Use kubectl to delete unneeded resources—only delete those with the label
test=true! Ensure both replicas of the deployment start successfully.
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.