Fix k8s issue

FailedCreatePodSandBox pod/devsecops-85bb45b9b-vrgbc Failed to create pod sandbox: rpc error: code = Unknown desc = failed to setup network for sandbox "b8864ba1349f93f1f6fd148dff6e0a5b2b175c2fb924440ebcccee13d8e4ff46": plugin type="flannel" failed (add): loadFlannelSubnetEnv failed: open /run/flannel/subnet.env: no such file or directory

kubectl apply -f https://github.com/coreos/flannel/raw/master/Documentation/kube-flannel.yml
 
kubectl apply -f https://raw.g
 
kubectl run <container name> --image=<docker image>:latest

Taint issue:

kubectl describe node master-node | grep Taint
 
kubectl taint nodes --all  node-role.kubernetes.io/control-plane:NoSchedule
 
kubectl taint nodes --all  node-role.kubernetes.io/control-plane-
 
 
Or
 
kubectl get pods --all-namespaces 
 
kubectl get pods -o wide -A 
 
kubectl describe node master-node 
 
tolerations:
      - key: "node-role.kubernetes.io/master"
        effect: "NoSchedule"
        operator: "Exists"
 
 
rm /root/.kube/config
kubectl -n kube-system get cm kubeadm-config -o yaml
Rm -rf /etc/cni/net.d
 
kubeadm reset -f
 
 
kubectl delete --all all
 
 
 kubeadm init --kubernetes-version=1.26.3 --skip-token-print
 mkdir -p $HOME/.kube
  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config
 
export KUBECONFIG=/etc/kubernetes/admin.conf
journalctl -xeu kubelet
kubectl get all
 
 kubeadm init --apiserver-advertise-address=192.168.207.129  --cert-dir /etc/kubernetes/pki --pod-network-cidr=10.244.0.0/16  --cert-dir /etc/kubernetes/pki   

FIX error

[kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10248/healthz' failed with error: Get " http://localhost:10248/healthz": dial tcp 127.0.0.1:10248: connect: connection refused.
[kubelet-check] It seems like the kubelet isn't running or healthy.
[kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10248/healthz' failed with error: Get " http://localhost:10248/healthz": dial tcp 127.0.0.1:10248: connect: connection refused.
[kubelet-check] It seems like the kubelet isn't running or healthy.
[kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10248/healthz' failed with error: Get " http://localhost:10248/healthz": dial tcp 127.0.0.1:10248: connect: connection refused.
 
curl -sSL http://localhost:10248/healthz
curl: (7) Failed to connect to localhost port 10248 after 0 ms: Connection refused

Run swapoff

 sudo swapoff -a
 sudo sed -i '/ swap / s/^/#/' /etc/fstab
 journalctl -xeu kubelet
systemctl status kubelet
 
cd /etc/apt
sudo cp trusted.gpg trusted.gpg.d