Kubernetes Troubleshoting

# error start service kubelet, jalankan perintah berikut
swapoff -a
sudo systemctl start kubelet
sudo systemctl status kubelet

# certificate expired
sudo kubeadm alpha certs check-expiration
sudo kubeadm alpha certs renew all

# How to fix — Kubernetes namespace deleting stuck in Terminating state
# Step 1: Dump the descriptor as JSON to a file
kubectl get namespace kubernetes-dashboard -o json > kubernetes-dashboard.json
vi kubernetes-dashboard.json
# Remove kubernetes from the finalizers array
...
"spec": {
        "finalizers": [
        ]
    },
...
# Step 2: Executing our cleanup command
# Where:/api/v1/namespaces/<your_namespace_here>/finalize
kubectl replace --raw "/api/v1/namespaces/kubernetes-dashboard/finalize" -f ./kubernetes-dashboard.json

# service kubelet tidak jalan setelah reboot, solusi
sudo swapoff -a