OhSudo — new Kubernetes articlesNew Kubernetes articles from OhSudo: practical fixes for DevOps engineers, SysAdmins and IT folks.https://ohsudo.com/en-usKubernetes "Forbidden: User cannot list resource": give exactly the rights it needs with RBAChttps://ohsudo.com/articles/kubernetes-forbidden-user-cannot-list-resource/https://ohsudo.com/articles/kubernetes-forbidden-user-cannot-list-resource/Fix Kubernetes "Forbidden: User cannot list resource": read who and what is missing, test with kubectl auth can-i, then add a Role and RoleBinding.Sat, 14 Nov 2026 00:00:00 GMTKuberneteskubernetesrbackubectlservice-accountspermissionstroubleshootingcontact@ohsudo.com (OhSudo)kubectl "x509: certificate signed by unknown authority": your kubeconfig doesn't trust this clusterhttps://ohsudo.com/articles/kubectl-x509-certificate-signed-by-unknown-authority/https://ohsudo.com/articles/kubectl-x509-certificate-signed-by-unknown-authority/Fix kubectl "x509: certificate signed by unknown authority": get a fresh kubeconfig for a recreated cluster, compare the CA, and handle proxies that inspect TLS.Fri, 13 Nov 2026 00:00:00 GMTKuberneteskuberneteskubectlkubeconfigtlsx509troubleshootingcontact@ohsudo.com (OhSudo)Kubernetes CreateContainerConfigError: a missing Secret or ConfigMap, and how to find ithttps://ohsudo.com/articles/kubernetes-createcontainerconfigerror/https://ohsudo.com/articles/kubernetes-createcontainerconfigerror/Fix Kubernetes CreateContainerConfigError: kubectl describe names the missing Secret, ConfigMap or key. Check the namespace and the key, then let the pod restart.Fri, 06 Nov 2026 00:00:00 GMTKuberneteskuberneteskubectlsecretsconfigmappodstroubleshootingcontact@ohsudo.com (OhSudo)Kubernetes pods "Evicted": find the pressure on the node, and stop it from coming backhttps://ohsudo.com/articles/kubernetes-pods-evicted-diskpressure/https://ohsudo.com/articles/kubernetes-pods-evicted-diskpressure/Fix Kubernetes pods with status Evicted: read why with describe, handle DiskPressure and MemoryPressure on the node, clean up, set requests and limits, delete old pods.Fri, 06 Nov 2026 00:00:00 GMTKuberneteskuberneteskubectlevicteddiskpressureresourcestroubleshootingcontact@ohsudo.com (OhSudo)kubectl "The connection to the server localhost:8080 was refused": your kubeconfig is missinghttps://ohsudo.com/articles/kubectl-connection-to-server-localhost-8080-refused/https://ohsudo.com/articles/kubectl-connection-to-server-localhost-8080-refused/Fix kubectl "The connection to the server localhost:8080 was refused": kubectl has no kubeconfig. Set it up for kubeadm, k3s, minikube, EKS, GKE or AKS, and under sudo.Thu, 05 Nov 2026 00:00:00 GMTKuberneteskuberneteskubectlkubeconfigk3skubeadmtroubleshootingcontact@ohsudo.com (OhSudo)Kubernetes "container has runAsNonRoot and image will run as root": fix the image or the podhttps://ohsudo.com/articles/kubernetes-container-has-runasnonroot-and-image-will-run-as-root/https://ohsudo.com/articles/kubernetes-container-has-runasnonroot-and-image-will-run-as-root/CreateContainerConfigError with runAsNonRoot: the image runs as root or has a non-numeric USER. Fix the Dockerfile, set runAsUser, and keep restricted security.Wed, 04 Nov 2026 00:00:00 GMTKuberneteskuberneteskubectlsecuritysecuritycontextdockertroubleshootingcontact@ohsudo.com (OhSudo)Kubernetes ImagePullBackOff and ErrImagePull: find out why the image won’t pullhttps://ohsudo.com/articles/kubernetes-imagepullbackoff/https://ohsudo.com/articles/kubernetes-imagepullbackoff/Fix ImagePullBackOff: read the pull error in kubectl describe, then fix the image name or tag, registry credentials, Docker Hub rate limits, network or architecture.Mon, 02 Nov 2026 00:00:00 GMTKuberneteskuberneteskubectlimagesregistryimagepullsecretstroubleshootingcontact@ohsudo.com (OhSudo)Kubernetes pod stuck in Pending: "0/3 nodes are available: Insufficient cpu"https://ohsudo.com/articles/kubernetes-pod-pending-insufficient-cpu/https://ohsudo.com/articles/kubernetes-pod-pending-insufficient-cpu/Fix pods stuck in Pending: read the FailedScheduling event, then fix CPU and memory requests, taints, node selectors, volumes or the cluster size.Mon, 02 Nov 2026 00:00:00 GMTKuberneteskubernetesschedulingresourcesrequeststaintstroubleshootingcontact@ohsudo.com (OhSudo)Kubernetes CrashLoopBackOff: 7 causes and how to find yourshttps://ohsudo.com/articles/kubernetes-crashloopbackoff/https://ohsudo.com/articles/kubernetes-crashloopbackoff/CrashLoopBackOff means the container keeps exiting. Read the exit code and the previous logs, then fix the crash, OOM kill, probe or command.Sun, 01 Nov 2026 00:00:00 GMTKuberneteskuberneteskubectlpodscrashloopbackoffprobestroubleshootingcontact@ohsudo.com (OhSudo)