ErrorNotes

☸️ Kubernetes Errors

38 error notes

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kubernetesbeginner

Fixing the Kubernetes ErrImageNeverPull Error (imagePullPolicy: Never)

Failed to pull image "myapp:latest": rpc error: code = Unknown desc = failed to pull and unpack image: ErrImageNeverPull
kubernetesdockerdevopstroubleshooting
kubernetesintermediate

Kubernetes Job Stuck at BackoffLimitExceeded? Here’s How to Fix It

Warning BackoffLimitExceeded Job has reached the specified backoff limit
kubernetesdevopstroubleshootingk8s-job
kubernetesintermediate

Fix Kubernetes Error: no matches for kind "Ingress" in version "extensions/v1beta1"

error: unable to recognize "deploy.yaml": no matches for kind "Ingress" in version "extensions/v1beta1"
kubernetesapi-versiondeprecatedingress
kubernetesbeginner

Fixing kubectl port-forward: 'Pod is not running Current status=Pending'

error: unable to forward port because pod is not running. Current status=Pending
kubectlport-forwardpoddebug
kubernetesintermediate

Fixing 'x509: certificate has expired' and Restoring kubectl Access

Unable to connect to the server: x509: certificate has expired or is not yet valid
KuberneteskubeadmSSLTLS
kubernetesintermediate

How to Force Delete a Kubernetes Pod Stuck in 'Terminating'

pod "my-pod" stuck in Terminating state, DeletionTimestamp set but pod not deleted after grace period
kubernetespodterminatingfinalizer
kubernetesbeginner

How to Fix Pod Scheduling Error: 0/1 nodes are available: 1 node(s) had taint {key: value}, that the pod didn't tolerate

0/1 nodes are available: 1 node(s) had taint {key: value}, that the pod didn't tolerate.
kubernetesschedulingtaintstolerations
kubernetesintermediate

Fixing 'Cannot evict pod as it would violate the pod's disruption budget' in Kubernetes

Cannot evict pod as it would violate the pod's disruption budget.
kubernetespdbpoddisruptionbudgeteviction
kubernetesintermediate

Fixing Kubernetes: failed calling webhook "validate.nginx.ingress.kubernetes.io"

Internal error occurred: failed calling webhook "validate.nginx.ingress.kubernetes.io": service "ingress-nginx-controller-admission" not found
kuberneteswebhooknginx-ingressdevops
kubernetesintermediate

Fixing Kubectl Drain: How to Handle DaemonSet-Managed Pods During Node Maintenance

error: cannot delete DaemonSet-managed Pods (use --ignore-daemonsets to ignore): kube-system/kube-proxy-xxxx, kube-system/calico-node-xxxx
kuberneteskubectldraindaemonset
kubernetesintermediate

Fix 'container has runAsNonRoot and image will run as root' in Kubernetes SecurityContext

Error: container has runAsNonRoot and image will run as root (pod: "...", container: "...")
kubernetessecurity-contextrunAsNonRootpod-security
kubernetesintermediate

Fixing Kubernetes Ingress 503: Solving the 'No Endpoints Available' Error

503 Service Temporarily Unavailable no endpoints available for service "my-service"
ingressnginx-ingress503endpoints
kubernetesintermediate

Fixing the Helm Error: Rendered Manifests Contain a Resource That Already Exists

Error: UPGRADE FAILED: rendered manifests contain a resource that already exists. Unable to continue with update: existing resource conflict
kuberneteshelmdevopstroubleshooting
kubernetesintermediate

Fixing Kubernetes 'dial tcp: i/o timeout' caused by Network Policy

dial tcp <pod-ip>:<port>: i/o timeout
kubernetesnetwork-policynetworkingtimeout
kubernetesintermediate

Fixing Init:CrashLoopBackOff: Why Your Kubernetes Init Containers Are Failing

Init:CrashLoopBackOff
kubernetesinit-containercrashloopbackofftroubleshooting
kubernetesintermediate

Fix Liveness Probe Failed: context deadline exceeded Causing Constant Pod Restarts in Kubernetes

Liveness probe failed: Get "http://10.0.0.1:8080/healthz": context deadline exceeded (Client.Timeout exceeded while awaiting headers)
liveness-probehealth-checkpodrestart
kubernetesintermediate

Fix Kubernetes LoadBalancer Service Stuck in <pending> — External IP Never Assigned

Service is in Pending state and External IP is <pending>
kubernetesserviceloadbalancercloud-provider
kubernetesintermediate

Fix Pod Evicted Error: The node was low on resource memory in Kubernetes

The node was low on resource: memory. Threshold quantity: 100Mi, available: 95Mi.
kubernetespodevictionmemory
kubernetesintermediate

Fixing 'exec format error' (standard_init_linux.go:211) in Kubernetes: ARM vs x86

standard_init_linux.go:211: exec user process caused "exec format error"
kubernetesdockerarm64devops
kubernetesintermediate

Fixing Kubernetes Evictions: 'Pod ephemeral local storage usage exceeds the total limit'

Pod ephemeral local storage usage exceeds the total limit of containers 512Mi
kubernetesstorageephemeral-storageeviction
kubernetesintermediate

Fix 'tls: certificate signed by unknown authority' — kubectl Can't Connect to API Server

Unable to connect to the server: tls: certificate signed by unknown authority
tlscertificatekubectlkubeconfig
kubernetesintermediate

Fix Kubernetes Node NotReady: Node node-1 status is now: NodeNotReady

Node node-1 status is now: NodeNotReady
kubernetesnodenotreadykubelet
kubernetesbeginner

Fixing the 'No StorageClass Set' Error: Why Your Kubernetes PVC is Stuck in Pending

persistentvolumeclaims "my-pvc" is forbidden: no persistent volumes available for this claim and no storage class is set
kubernetespvcdevopsstorageclass
kubernetesbeginner

Fix: Kubernetes MountVolume.SetUp Failed (ConfigMap Not Found)

MountVolume.SetUp failed for volume "config-vol" : configmap "app-config" not found
kubernetestroubleshootingconfigmapsecret
kubernetesintermediate

Fix Kubernetes Error: 0/3 nodes are available: 1 Insufficient cpu, 2 Insufficient memory

0/3 nodes are available: 1 Insufficient cpu, 2 Insufficient memory. preemption: 0/3 nodes are available: 3 No preemption victims found for incoming pod.
kubernetespodschedulingtroubleshooting
kubernetesintermediate

Fixing the Kubernetes DNS Error: dial tcp lookup on 10.96.0.10:53 no such host

dial tcp: lookup <service-name> on 10.96.0.10:53: no such host
kubernetesdnscorednstroubleshooting
kubernetesbeginner

Fix 'The connection to the server localhost:8443 was refused' in Kubernetes

The connection to the server localhost:8443 was refused
kubernetesapiserverkubectlconnection
kubernetesintermediate

Fix Kubernetes Deployment Stuck: "Waiting for deployment rollout to finish: 1 old replicas are pending termination"

Waiting for deployment "my-app" rollout to finish: 1 old replicas are pending termination...
kubernetesdeploymentrolling-updaterollout
kubernetesintermediate

Fix Kubernetes OOMKilled: Pod Killed Due to Out of Memory

OOMKilled
kubernetesmemoryoomlimits
kubernetesintermediate

Fix Kubernetes ResourceQuota Exceeded: pods is forbidden: exceeded quota

Error from server (Forbidden): pods "my-pod" is forbidden: exceeded quota: my-quota, requested: cpu=500m, used: cpu=900m, limited: cpu=1
kubernetesresourcequotaquotanamespace
kubernetesintermediate

Fix Kubernetes Forbidden Error: User cannot create resource (RBAC)

Error from server (Forbidden): pods "my-pod" is forbidden: User "system:serviceaccount:default:default" cannot create resource "pods" in API group "" in the namespace "default"
kubernetesrbacpermissionforbidden
kubernetesintermediate

Fix Readiness Probe Failed: HTTP Probe Failed with statuscode: 500 in Kubernetes

Readiness probe failed: HTTP probe failed with statuscode: 500
kubernetesreadiness-probepoddeployment
kubernetesintermediate

Fix HorizontalPodAutoscaler Not Scaling: "unable to get metrics for resource cpu: no metrics returned from resource metrics API"

unable to get metrics for resource cpu: no metrics returned from resource metrics API
kuberneteshpaautoscalermetrics-server
kubernetesintermediate

Fix Kubernetes Namespace Stuck in Terminating State (Error from server: namespaces is being deleted)

Error from server: namespaces "my-namespace" is being deleted
kubernetesnamespaceterminatingfinalizer
kubernetesintermediate

Fix Kubernetes Pod Stuck in Pending: "0/3 nodes are available: 3 Insufficient cpu"

0/3 nodes are available: 3 Insufficient cpu
kubernetesschedulingresourcesnode
kubernetesintermediate

Fix MountVolume.SetUp failed for volume: mount failed exit status 32 in Kubernetes

MountVolume.SetUp failed for volume "my-pv" : mount failed: exit status 32
kubernetespersistent-volumemountstorage
kubernetesintermediate

Fix Kubernetes ImagePullBackOff: Causes and Solutions

ImagePullBackOff
kubernetesimagepullregistry
kubernetesintermediate

Fix Kubernetes CrashLoopBackOff: Troubleshooting Guide

CrashLoopBackOff