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caelebfi
2024-02-16 12:51:49 +01:00
parent 8331264aec
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Installation/Installation Kubernetes-Cluster.md
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@@ -148,47 +148,28 @@ To make nodes status ready, we must install POD network addons like Calico or fl
## Setup Pod Network Using Calico
On the master node, run beneath command to install calico,
$ kubectl apply -f https://raw.githubusercontent.com/projectcalico/calico/v3.26.1/manifests/calico.yaml
Output,
Install-Calico-Pod-Network-Addon-K8s-Debian12
>$ kubectl apply -f https://raw.githubusercontent.com/projectcalico/calico/v3.26.1/manifests/calico.yaml
Allow Calico ports in OS firewall, run beneath ufw commands on all the nodes,
>$ sudo ufw allow 179/tcp \
$ sudo ufw allow 4789/udp \
$ sudo ufw allow 51820/udp \
$ sudo ufw allow 51821/udp \
$ sudo ufw reload \
$ sudo ufw allow 179/tcp
$ sudo ufw allow 4789/udp
$ sudo ufw allow 51820/udp
$ sudo ufw allow 51821/udp
$ sudo ufw reload
Verify the status of Calico pods, run
>$ kubectl get pods -n kube-system
$ kubectl get pods -n kube-system
Calico-Pods-Status-Kubernetes-Debian12
Perfect, now check nodes status again,
Nodes-Status-Post-Calico-Installation-K8s-Debian12
Great, above confirms that master and worker nodes are in ready staate. Now, we can say our cluster ready handle workload.
Confirm, that master and worker nodes are in ready staate. Now, we can say our cluster ready handle workload.
## Test Kubernetes Cluster Installation
In order validate and test Kubernetes cluster installation, let’s try to deploy nginx based application via deployment. Run beneath commands,
$ kubectl create deployment nginx-app --image=nginx --replicas 2
$ kubectl expose deployment nginx-app --name=nginx-web-svc --type NodePort --port 80 --target-port 80
>$ kubectl create deployment nginx-app --image=nginx --replicas 2 \
$ kubectl expose deployment nginx-app --name=nginx-web-svc --type NodePort --port 80 --target-port 80 \
$ kubectl describe svc nginx-web-svc
Output of above commands,
Sample-Nginx-Deployment-Kubernetes-Cluster-Debian12
Try to access the nginx based application using following curl command along with the nodeport 32283.
Note : In the curl command we can use either of worker node’s hostname.
$ curl http://k8s-worker01:32283
Access-Nginx-Deployment-Kubernetes-Cluster-Debian12
Great, output above confirms that we are able to access our nginx based application.
That’s all from this guide, I hope you have found it informative and able to install Kubernetes cluster on Debian 12 smoothly.
>$ curl http://k8s-worker01:32283