OpenShift v4 Troubleshooting Notes from Experts (2024)!

Here with 50 problem scenarios and cmd references. Keep in mind that the commands and solutions may vary based on the specific details of your OpenShift environment.

1. Problem: Node Not Ready

   – Solution:

     oc get nodes

     oc describe node

2. Problem: PersistentVolumeClaim (PVC) is Pending

   – Solution:     

     oc get pvc

     oc describe pvc

3. Problem: Pod CrashLoopBackOff

   – Solution:   

     oc get pods

     oc logs

4. Problem: ImagePullBackOff

   – Solution:     

     oc get pods

     oc describe pod

5. Problem: Services not accessible

   – Solution:

     oc get services

     oc describe service

     “`

6. Problem: Route not working

   – Solution:

     oc get routes

     oc describe route

7. Problem: Unable to deploy application

   – Solution:     

     oc get deployment

     oc describe deployment

8. Problem: High resource usage

   – Solution:

     oc adm top nodes

     oc adm top pods

9. Problem: StorageClass not available

   – Solution:    

     oc get storageclass

     oc describe storageclass

10. Problem: Incorrect DNS configuration

    – Solution:     

      oc get pods

      oc exec -it — nslookup

11. Problem: Ingress issues

    – Solution:      

      oc get ingresses

      oc describe ingress

12. Problem: Authentication failure

    – Solution:      

      oc get users

      oc get groups

      oc describe user

13. Problem: Custom Resource Definition (CRD) not working

    – Solution:

      oc get crds

      oc describe crd

14. Problem: NetworkPolicy not applied

    – Solution:

      oc get networkpolicies

      oc describe networkpolicy

15. Problem: Pod stuck in Terminating state

    – Solution:

      oc get pods

      oc delete pod –grace-period=0 –force

16. Problem: Image registry issues

    – Solution:

      oc get configs.imageregistry.operator.openshift.io cluster

      oc describe configs.imageregistry.operator.openshift.io

17. Problem: ClusterOperator not progressing

    – Solution:

      oc get clusteroperator

      oc describe clusteroperator

18. Problem: Invalid resource requests/limits

    – Solution:

      oc get pods

      oc describe pod

19. Problem: Secret not found

    – Solution:

      oc get secrets

      oc describe secret

20. Problem: Helm chart deployment issues

    – Solution:

      oc get helmreleases

      oc describe helmrelease

21. Problem: Pod stuck in ContainerCreating state

    – Solution:

      oc get pods

      oc describe pod

22. Problem: High CPU or memory usage

    – Solution:

      oc adm top nodes

      oc adm top pods

23. Problem: Failed to create a project

    – Solution:

      oc get projects

      oc describe project

24. Problem: ServiceAccount issues

    – Solution:

      oc get serviceaccount

      oc describe serviceaccount

25. Problem: Certificate expiration

    – Solution:

      oc get certificates

      oc describe certificate

26. Problem: Pod stuck in ImagePullBackOff

    – Solution:

      oc get pods

      oc describe pod

27. Problem: Custom role not applied

    – Solution:

      oc get clusterroles

      oc describe clusterrole

28. Problem: Operator installation failure

    – Solution:

      oc get operatorhub

      oc describe operatorhub

29. Problem: Pod with CrashLoopBackOff due to misconfiguration

    – Solution:

      oc get pods

      oc logs

30. Problem: Unable to create Route

    – Solution:

      oc get routes

      oc describe route

31. Problem: OpaqueSecret not working

    – Solution:

      oc get opaqueSecrets

      oc describe opaqueSecret

32. Problem: PVC stuck in Pending state

    – Solution:

      oc get pvc

      oc describe pvc

33. Problem: Unable to scale deployment

    – Solution:

      oc get deployment

      oc describe deployment

34. Problem: Cluster role binding issues

    – Solution:

      oc get clusterrolebindings

      oc describe clusterrolebinding

35. Problem: Network issues between pods

    – Solution:

      oc get pods

      oc describe pod

36. Problem: High disk usage

    – Solution:

      oc adm top nodes

      oc adm top pods

37. Problem: Route pointing to the wrong service

    – Solution:

      oc get routes

      oc describe route

38. Problem: Custom metrics not available

    – Solution:

      oc get customresourcedefinitions

      oc describe customresourcedefinition

39. Problem: Pod not starting due to readiness probe failure

    – Solution:

      oc get pods

      oc describe pod

40. Problem: PersistentVolume not binding

    – Solution:

      oc get pv

      oc describe pv

41. Problem: SecurityContextConstraints (SCC) issues

    – Solution:

      oc get scc

      oc describe scc

42. Problem: Unable to create project due to Quotas

    – Solution:

      oc get quotas

      oc describe quota

43. Problem: Node not joining the cluster

    – Solution:

      oc get nodes

      oc describe node

44. Problem: Pod stuck in Init state

    – Solution:

      oc get pods

      oc describe pod

45. Problem: Custom resource not updating

    – Solution:

      oc get customresources

      oc describe customresource

46. Problem: ImageStream not updating

    – Solution:

      oc get imagestream

      oc describe imagestream

47. Problem: Endpoint not accessible

    – Solution:

      oc get endpoints

      oc describe endpoint

48. Problem: Namespace not found

    – Solution:

      oc get namespaces

49. Problem: Unable to create build

    – Solution:

      oc get builds

      oc describe build

50. Problem: HPA (Horizontal Pod Autoscaler) not scaling

    – Solution:

      oc get hpa

      oc describe hpa

List goes.