17 articles
RSSHow to fix ArgoCD errors — application stuck OutOfSync, sync waves not respected, RBAC permission denied, Helm values not merged, ApplicationSet generator config, repo auth, and webhook not triggering.
How to fix Helm 3 errors — release already exists, another operation is in progress, --set values not applied, nil pointer template errors, kubeVersion mismatch, hook failures, and ConfigMap changes not restarting pods.
How to fix Kubernetes HorizontalPodAutoscaler issues — metrics-server not installed, CPU requests not set, unknown metrics, scale-down delay, custom metrics, and KEDA.
How to fix Kubernetes Secrets not being mounted — namespace mismatches, RBAC permissions, volume mount configuration, environment variable injection, and secret decoding issues.
How to fix Kubernetes OOMKilled errors — understanding memory limits, finding memory leaks, setting correct resource requests and limits, and using Vertical Pod Autoscaler.
How to fix Kubernetes ConfigMap updates not reaching running pods — why pods don't see updated values, how to trigger restarts, use live volume mounts, and automate ConfigMap rollouts with Reloader.
How to fix Kubernetes Ingress not routing traffic — why Ingress returns 404 or 502, how to configure annotations correctly, debug ingress-nginx and AWS ALB Ingress Controller, and verify backend service health.
How to fix Kubernetes 'exceeded quota' errors — pods stuck in Pending because namespace resource quotas are exhausted, missing resource requests, and LimitRange defaults.
How to fix kubectl apply errors like 'error validating', 'is invalid', and 'error when creating' caused by YAML syntax issues, deprecated APIs, missing fields, and more.
How to fix the Kubernetes ImagePullBackOff and ErrImagePull errors when a pod fails to pull a container image from a registry.
How to fix Kubernetes OOMKilled pod status caused by memory limit exceeded, container memory leaks, JVM heap misconfiguration, and resource requests/limits settings.
How to fix Kubernetes Pod stuck in Pending state caused by insufficient resources, unschedulable nodes, PVC issues, node selectors, taints, and resource quotas.
How to fix kubectl errors like 'connection refused', 'context not found', or 'unable to connect to the server' when managing Kubernetes clusters.
How to fix the Kubernetes CrashLoopBackOff error when a pod repeatedly crashes and Kubernetes keeps restarting it with increasing back-off delays.
How to fix 'mapping values are not allowed here', 'could not find expected :', 'did not find expected key', and other YAML indentation and syntax errors in Docker Compose, Kubernetes manifests, GitHub Actions, and config files.
How to fix Docker container 'Exited (137)', OOMKilled, and 'Killed' signal 9 errors caused by out-of-memory conditions in Docker, Docker Compose, and Kubernetes.
How to fix 'the connection to the server localhost:8080 was refused' and other kubectl connection errors when the Kubernetes API server is unreachable.