kubelet-check Initial timeout of 40s passed

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Hello,

          I'm getting and error message while installing kubernetes on Ubuntu following the documentation mentioned here https://www.howtoforge.com/how-to-deploy-nginx-on-kubernetes-cluster-on-ubuntu-1804/. The complete error message says as follows:

root@evuser-ThinkPad-T430:/home/evuser/Dockernginx# kubeadm init --pod-network-cidr=192.168.0.0/16 --apiserver-advertise-address=192.168.31.137[init] Using Kubernetes version: v1.15.2
[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/
[WARNING SystemVerification]: this Docker version is not on the list of validated versions: 19.03.1. Latest validated version: 18.09
[preflight] Pulling images required for setting up a Kubernetes cluster
[preflight] This might take a minute or two, depending on the speed of your internet connection
[preflight] You can also perform this action in beforehand using 'kubeadm config images pull'

[kubelet-start] Writing kubelet environment file with flags to file "/var/lib/kubelet/kubeadm-flags.env"
[kubelet-start] Writing kubelet configuration to file "/var/lib/kubelet/config.yaml"
[kubelet-start] Activating the kubelet service
[certs] Using certificateDir folder "/etc/kubernetes/pki"
[certs] Generating "ca" certificate and key
[certs] Generating "apiserver" certificate and key
[certs] apiserver serving cert is signed for DNS names [evuser-thinkpad-t430 kubernetes kubernetes.default kubernetes.default.svc kubernetes.default.svc.cluster.local] and IPs [10.96.0.1 192.168.31.137]
[certs] Generating "apiserver-kubelet-client" certificate and key
[certs] Generating "front-proxy-ca" certificate and key
[certs] Generating "front-proxy-client" certificate and key
[certs] Generating "etcd/ca" certificate and key
[certs] Generating "etcd/server" certificate and key
[certs] etcd/server serving cert is signed for DNS names [evuser-thinkpad-t430 localhost] and IPs [192.168.31.137 127.0.0.1 ::1]
[certs] Generating "etcd/healthcheck-client" certificate and key
[certs] Generating "etcd/peer" certificate and key
[certs] etcd/peer serving cert is signed for DNS names [evuser-thinkpad-t430 localhost] and IPs [192.168.31.137 127.0.0.1 ::1]
[certs] Generating "apiserver-etcd-client" certificate and key
[certs] Generating "sa" key and public key
[kubeconfig] Using kubeconfig folder "/etc/kubernetes"
[kubeconfig] Writing "admin.conf" kubeconfig file
[kubeconfig] Writing "kubelet.conf" kubeconfig file
[kubeconfig] Writing "controller-manager.conf" kubeconfig file
[kubeconfig] Writing "scheduler.conf" kubeconfig file
[control-plane] Using manifest folder "/etc/kubernetes/manifests"
[control-plane] Creating static Pod manifest for "kube-apiserver"
[control-plane] Creating static Pod manifest for "kube-controller-manager"
[control-plane] Creating static Pod manifest for "kube-scheduler"
[etcd] Creating static Pod manifest for local etcd in "/etc/kubernetes/manifests"
[wait-control-plane] Waiting for the kubelet to boot up the control plane as static Pods from directory "/etc/kubernetes/manifests". This can take up to 4m0s

[kubelet-check] Initial timeout of 40s passed.

Unfortunately, an error has occurred:
timed out waiting for the condition

This error is likely caused by:
- The kubelet is not running
- The kubelet is unhealthy due to a misconfiguration of the node in some way (required cgroups disabled)

If you are on a systemd-powered system, you can try to troubleshoot the error with the following commands:
- 'systemctl status kubelet'
- 'journalctl -xeu kubelet'

Additionally, a control plane component may have crashed or exited when started by the container runtime.
To troubleshoot, list all containers using your preferred container runtimes CLI, e.g. docker.
Here is one example how you may list all Kubernetes containers running in docker:
- 'docker ps -a | grep kube | grep -v pause'
Once you have found the failing container, you can inspect its logs with:
- 'docker logs CONTAINERID'
error execution phase wait-control-plane: couldn't initialize a Kubernetes cluster

After which I did check the kubelet services and it said as mentioned here.

root@evuser-ThinkPad-T430:/home/evuser/Dockernginx# 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 Tue 2019-08-06 09:18:54 IST; 5min ago
Docs: https://kubernetes.io/docs/home/
Main PID: 24202 (kubelet)
Tasks: 23
Memory: 51.3M
CPU: 9.894s
CGroup: /system.slice/kubelet.service
└─24202 /usr/bin/kubelet --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf --kubeconfig=/etc/kubernetes/kubelet.conf --c

Aug 06 09:24:27 evuser-ThinkPad-T430 kubelet[24202]: E0806 09:24:27.726959 24202 kubelet.go:2248] node "evuser-thinkpad-t430" not found
Aug 06 09:24:27 evuser-ThinkPad-T430 kubelet[24202]: E0806 09:24:27.827159 24202 kubelet.go:2248] node "evuser-thinkpad-t430" not found
Aug 06 09:24:27 evuser-ThinkPad-T430 kubelet[24202]: E0806 09:24:27.927439 24202 kubelet.go:2248] node "evuser-thinkpad-t430" not found
Aug 06 09:24:28 evuser-ThinkPad-T430 kubelet[24202]: E0806 09:24:28.027780 24202 kubelet.go:2248] node "evuser-thinkpad-t430" not found
Aug 06 09:24:28 evuser-ThinkPad-T430 kubelet[24202]: E0806 09:24:28.128013 24202 kubelet.go:2248] node "evuser-thinkpad-t430" not found
Aug 06 09:24:28 evuser-ThinkPad-T430 kubelet[24202]: E0806 09:24:28.228266 24202 kubelet.go:2248] node "evuser-thinkpad-t430" not found
Aug 06 09:24:28 evuser-ThinkPad-T430 kubelet[24202]: E0806 09:24:28.328504 24202 kubelet.go:2248] node "evuser-thinkpad-t430" not found
Aug 06 09:24:28 evuser-ThinkPad-T430 kubelet[24202]: E0806 09:24:28.428718 24202 kubelet.go:2248] node "evuser-thinkpad-t430" not found
Aug 06 09:24:28 evuser-ThinkPad-T430 kubelet[24202]: E0806 09:24:28.529010 24202 kubelet.go:2248] node "evuser-thinkpad-t430" not found
Aug 06 09:24:28 evuser-ThinkPad-T430 kubelet[24202]: E0806 09:24:28.629227 24202 kubelet.go:2248] node "evuser-thinkpad-t430" not found

Now, I'm want to know if I do this "kubeadm init --pod-network-cidr=192.168.0.0/16 --apiserver-advertise-address=192.168.31.137 --ignore-preflight-errors=

[Courtesy: https://www.edureka.co/community/19089/error-while-doing-kubernetes-init-command].

Aug 6, 2019 in Kubernetes by nmentityvibes
 • 420 points
edited Aug 6, 2019 by Kalgi • 11,138 views
Show 7 previous comments
Alright, if you are getting issues while creating the dashboard, I am assuming that you have created the cluster and joined your nodes to the cluster.

What error are you getting with the dashboard?

Even I faced a lot of issues the first time I created a Kube cluster.
commented Aug 9, 2019 by Kalgi
 • 52,350 points

This is the result of the my kublet pod namespace containers and I'm getting no response while accessing this URL: http://192.168.31.198:8001/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/

commented Aug 9, 2019 by nmentityvibes
 • 420 points

Here are screenshot images while trying to access it. I've tried installing apache on the kubernetes machine and it worked but I'm not able to access this. Help me with a checklist to access the GUI[graphical user interface].

commented Aug 9, 2019 by nmentityvibes
 • 420 points

This message I receive when try to access "192.168.31.198:6443" while trying to join on http and not using "kubeadm join 192.168.31.198:6443 --token gdn12c.i1krjuiaphlaxtwk --discovery-token-ca-cert-hash sha256:6b493c7fea20bb34834f9a1dcf4405130411c70730bf4bf5a0adeb7088966f44". Help me if this is possible or just ignore this one.

commented Aug 9, 2019 by nmentityvibes
 • 420 points
Hey @nmentityvibes, can you post the output of kubectl get pods in text format? The image is very blurry to read.
commented Aug 9, 2019 by Kalgi
 • 52,350 points

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