Kubernetes Troubleshooting - Resolve Common Issues

Troubleshooting Kubernetes

Daemonset Issues

Daemonset Not Running on All Nodes

1. Describe the daemonset and check:
2. Events
3. Selectors, Node-Selectors and Tolerations
4. Identify nodes where pods aren't running:
5. kubectl get pods -A --field-selector spec.nodeName=ip-10-254-1-20
6. Describe the node where pods are not running to check for Taints:
7. kubectl describe node ip-10-254-1-20 | grep Taints
8. If you see something like Taints: application=monitoring:NoSchedule, add tolerations to the daemonset:

tolerations:
  - key: "application"
    operator: "Equal"
    value: "monitoring"
    effect: "NoSchedule"

This section provides troubleshooting steps for common Kubernetes issues. Remember to consult the official Kubernetes documentation for the most up-to-date information and best practices.

For further assistance, consider exploring community forums and resources like Stack Overflow and the Kubernetes GitHub repository.