Kubernetes - Revision history

Aleks: /* Install Kubeadm */

2024-05-27T16:50:35Z

Install Kubeadm

← Older revision		Revision as of 17:50, 27 May 2024
Line 3:		Line 3:

	https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/		https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/

			=== Error with running kubeadm init ===
			Error can be caused by containerd running.

			Error seen: "[ERROR CRI]: container runtime is not running: output: time="2024-05-27T17:40:33+01:00" level=fatal msg="validate service connection: validate CRI v1 runtime API for endpoint \"unix:///var/run/containerd/containerd.sock\": rpc error: code = Unimplemented desc = unknown service "

			fix by deleting the containerd config file and restarting containerd:<syntaxhighlight lang="bash">
			rm /etc/containerd/config.toml
			systemctl restart containerd
			kubeadm init
			</syntaxhighlight>You may need to open the following ports to allow nodes to communicate with the control plane:<syntaxhighlight lang="bash">
			sudo firewall-cmd --permanent --add-port=6443/tcp
			sudo firewall-cmd --permanent --add-port=2379-2380/tcp
			sudo firewall-cmd --permanent --add-port=10250/tcp
			sudo firewall-cmd --permanent --add-port=10251/tcp
			sudo firewall-cmd --permanent --add-port=10252/tcp
			sudo firewall-cmd --permanent --add-port=10255/tcp
			sudo firewall-cmd –reload
			</syntaxhighlight>Then open the following ports on the worker nodes:<syntaxhighlight lang="bash">
			sudo firewall-cmd --permanent --add-port=10251/tcp
			sudo firewall-cmd --permanent --add-port=10255/tcp
			firewall-cmd --reload
			</syntaxhighlight>

	==Create Pod==		==Create Pod==

Aleks at 16:28, 27 May 2024

2024-05-27T16:28:25Z

← Older revision		Revision as of 17:28, 27 May 2024
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			== Install Kubeadm ==
			Install Kubeadm with the following steps:

			https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/

	==Create Pod==		==Create Pod==
	Create pod with the following command:<syntaxhighlight lang="bash">		Create pod with the following command:<syntaxhighlight lang="bash">

Aleks at 13:35, 14 April 2024

2024-04-14T13:35:10Z

← Older revision		Revision as of 14:35, 14 April 2024
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	</syntaxhighlight>use ctl command to see base info:<syntaxhighlight lang="bash">		</syntaxhighlight>use ctl command to see base info:<syntaxhighlight lang="bash">
	sudo ctr --namespace=k8s.io containers ls		sudo ctr --namespace=k8s.io containers ls

			</syntaxhighlight>See running containers in the pod using ctl:<syntaxhighlight lang="bash">
			sudo crictl ps

	</syntaxhighlight>		</syntaxhighlight>

Aleks: Created page with "==Create Pod== Create pod with the following command: kubectl apply -f pod.yaml #apply the config in the .yaml file inspect the pods conents: ps auxf use ctl command to see base info: sudo ctr --namespace=k8s.io containers ls "

2024-04-14T13:34:21Z

Created page with "==Create Pod== Create pod with the following command:<syntaxhighlight lang="bash"> kubectl apply -f pod.yaml #apply the config in the .yaml file </syntaxhighlight>inspect the pods conents:<syntaxhighlight lang="bash"> ps auxf </syntaxhighlight>use ctl command to see base info:<syntaxhighlight lang="bash"> sudo ctr --namespace=k8s.io containers ls </syntaxhighlight>"

New page

==Create Pod==
Create pod with the following command:<syntaxhighlight lang="bash">
kubectl apply -f pod.yaml #apply the config in the .yaml file

</syntaxhighlight>inspect the pods conents:<syntaxhighlight lang="bash">
ps auxf

</syntaxhighlight>use ctl command to see base info:<syntaxhighlight lang="bash">
sudo ctr --namespace=k8s.io containers ls

</syntaxhighlight>