Troubleshooting kubernetes
- Workflow for Troubleshooting kubernetes
Common kuberentes Errors
- CreateContainerConfigError:
- This is result of a missing secret or config map
- CrashLoopBackoff:
- This issued is due to pod not scheduled on node which can happen due to
- insufficient resources
- pod did not succeed in mounting volumes
- hostPort
- This issued is due to pod not scheduled on node which can happen due to
- ErrImagePull or ImagePullBackOff
- This is result of failure occured as the image couldnot be pulled from registryt
- Node not Ready
Setting up metrics server on kubernetes
- To setup metrics server the command is
kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
- This doesnot work out of box for kubeadm
- Make changes in the args of container of deployment spec of metrics server
- Kuberentes dashboard Refer Here
- Refer Here for steps
