When join node : sudo kubeadm join 172.16.7.101:6443 --token 4mya3g.duoa5xxuxin0l6j3 --discovery-token-ca-cert-hash sha256:bba76ac7a207923e8cae0c466dac166500a8e0db43fb15ad9018b615bdbabeb2
The outputs:
[preflight] Running pre-flight checks
[WARNING IsDockerSystemdCheck]: detected "cgroupfs" as the Docker cgroup driver. The recommended driver is "systemd". Please follow the guide at https://kubernetes.io/docs/setup/cri/
[preflight] Reading configuration from the cluster...
[preflight] FYI: You can look at this config file with 'kubectl -n kube-system get cm kubeadm-config -oyaml'
[kubelet-start] Downloading configuration for the kubelet from the "kubelet-config-1.14" ConfigMap in the kube-system namespace
[kubelet-start] Writing kubelet configuration to file "/var/lib/kubelet/config.yaml"
[kubelet-start] Writing kubelet environment file with flags to file "/var/lib/kubelet/kubeadm-flags.env"
[kubelet-start] Activating the kubelet service
[kubelet-start] Waiting for the kubelet to perform the TLS Bootstrap...
[kubelet-check] Initial timeout of 40s passed.
error execution phase kubelet-start: error uploading crisocket: timed out waiting for the conditionAnd systemctl status kubelet:
node@node:~$ sudo systemctl status kubelet
● kubelet.service - kubelet: The Kubernetes Node Agent
Loaded: loaded (/lib/systemd/system/kubelet.service; enabled; vendor preset: enabled)
Drop-In: /etc/systemd/system/kubelet.service.d
└─10-kubeadm.conf
Active: active (running) since Wed 2019-04-17 06:20:56 UTC; 12min ago
Docs: https://kubernetes.io/docs/home/
Main PID: 26716 (kubelet)
Tasks: 16 (limit: 1111)
CGroup: /system.slice/kubelet.service
└─26716 /usr/bin/kubelet --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf --kubeconfig=/etc/kubernetes/kubelet.conf --config=/var/lib/kubelet/config.yaml -
Apr 17 06:33:38 node kubelet[26716]: E0417 06:33:38.022384 26716 kubelet.go:2244] node "node" not found
Apr 17 06:33:38 node kubelet[26716]: E0417 06:33:38.073969 26716 reflector.go:126] k8s.io/kubernetes/pkg/kubelet/kubelet.go:451: Failed to list *v1.Node: Unauthorized
Apr 17 06:33:38 node kubelet[26716]: E0417 06:33:38.122820 26716 kubelet.go:2244] node "node" not found
Apr 17 06:33:38 node kubelet[26716]: E0417 06:33:38.228838 26716 kubelet.go:2244] node "node" not found
Apr 17 06:33:38 node kubelet[26716]: E0417 06:33:38.273153 26716 reflector.go:126] k8s.io/kubernetes/pkg/kubelet/kubelet.go:442: Failed to list *v1.Service: Unauthorized
Apr 17 06:33:38 node kubelet[26716]: E0417 06:33:38.330578 26716 kubelet.go:2244] node "node" not found
Apr 17 06:33:38 node kubelet[26716]: E0417 06:33:38.431114 26716 kubelet.go:2244] node "node" not found
Apr 17 06:33:38 node kubelet[26716]: E0417 06:33:38.473501 26716 reflector.go:126] k8s.io/kubernetes/pkg/kubelet/config/apiserver.go:47: Failed to list *v1.Pod: Unauthorized
Apr 17 06:33:38 node kubelet[26716]: E0417 06:33:38.531294 26716 kubelet.go:2244] node "node" not found
Apr 17 06:33:38 node kubelet[26716]: E0417 06:33:38.632347 26716 kubelet.go:2244] node "node" not foundTo Unauthorized I checked at master with kubeadm token list, token is valid. So what's the problem? Thanks a lot.
Please verify pre and post installation steps here:
Please verify also the status of your services enabled and running, docker env.
sudo systemctl enable docker
sudo systemctl enable kubelet
systemctl daemon-reload
systemctl restart docker
systemctl restart kubeletAre the results the same if you run init command with --ignore-preflight-errors=all
For more details please use also "journalctl -u kubelet"
Having more details from your logs, please take a look at "github - kubeadm/issues" here:
Please provide more details about you env in order to recreate this issue and share with your additional findings.
Could you please perform another test and run kubeadm init on your worker node, in the same way as on the first node (in short please create second master node) just to verify your working env.