All Errors

The "Waiting for rollout to finish" message appears when kubectl rollout status cannot complete a deployment rollout within the expected timeframe. This blocks CI/CD pipelines and indicates your deployment is stuck due to pod failures, resource constraints, or timeout issues.

GKE networking fails to initialize when VPC, subnet, or firewall configuration is incomplete. Nodes cannot obtain IP addresses, pods cannot communicate, and networking components fail to start.

AKS virtual node errors occur when pods fail to run on Azure Container Instances (ACI) due to networking, permissions, or quota issues. These errors typically involve authentication failures, container group quota limits, or misconfigured subnets.

The 'volume with name already exists' error occurs when you try to create a Docker volume using a name that's already taken. Either remove the existing volume, use a different name, or reuse the existing one.

Halo (Cilium policy) enforcement fails when network policies are misconfigured, endpoint selectors do not match, or policy syntax is invalid. Pod networking becomes restricted or broken.

This Python error occurred during execution. Check the error message for details on what went wrong and follow the steps below to diagnose and fix the issue.

The "deployment not found" error occurs when kubectl cannot locate a Deployment resource. This is usually caused by a namespace mismatch, typo in the deployment name, connected to the wrong cluster, or the deployment was deleted.

Alertmanager notification failures occur when alerts cannot be delivered to configured receivers like email, Slack, or webhooks. Common causes include SMTP misconfiguration, network connectivity issues, invalid receiver endpoints, TLS certificate errors, and timeout problems.

The "Job completions is immutable" error occurs when you attempt to modify the `.spec.completions` field on an already-created Kubernetes Job. This field specifies required pod completions and cannot be changed after creation.

Pod cannot read/write hostPath volume due to permission mismatch. Container UID/GID does not match directory ownership on host. Write operations fail despite mounted path.

This Python error occurred during execution. Check the error message for details on what went wrong and follow the steps below to diagnose and fix the issue.

AKS Defender errors occur when Microsoft Defender for Containers fails to deploy, authenticate, or send security data to Azure. Common causes include disabled feature flags, network connectivity issues, cgroup v2 incompatibility, and invalid cluster configurations.

This error occurs when Docker sends a SIGTERM signal to gracefully stop a container, but the process inside doesn't respond before the timeout expires. Docker then forcibly kills the container with SIGKILL. The fix involves proper signal handling, using exec form in Dockerfiles, or adding an init process.

HorizontalPodAutoscaler cannot access metric data because metrics-server is not running, pod metrics are incomplete, or the metrics API is not responding.

The npm install command fails when security vulnerabilities are detected in dependencies and the audit-level threshold is breached. npm audit automatically scans packages during installation and can block the process if high-severity issues are found.

The node.kubernetes.io/unreachable taint is applied when the Kubernetes control plane cannot communicate with a worker node and the node status becomes "Unknown". This causes pod eviction and prevents new pods from scheduling on that node.

Pod readiness/liveness HTTP probes timeout when application does not respond quickly enough. Probes fail to reach the health check endpoint within the timeout window.

The "node not found" error occurs when kubelet fails to register with the Kubernetes API server during cluster initialization or after a node restart. This prevents the node from joining the cluster and scheduling pods.

A Kubernetes object not found error occurred. This typically indicates a configuration issue, resource constraint, or system problem. Review the error logs, check resource availability, and verify cluster configuration to resolve.

PLEG (Pod Lifecycle Event Generator) is a critical kubelet component that monitors container runtime state. When PLEG becomes unhealthy, the node transitions to NotReady and prevents pod scheduling. This is usually caused by container runtime latency, high pod density, or resource exhaustion.