راه اندازی آزمایشگاه خوشه ای Kubernetes (K8S) در سرور اوبونتو 24.04

sudo hostnamectl set-hostname \

sudo hostnamectl set-hostname kb1 

sudo nano /etc/hosts 

192.168.0.112  kb1192.168.0.113  kb2 

sudo swapoff \-a && sudo sed \-i '/ swap / s/^\\(.\*\\)$/\#\\1/g' /etc/fstab 

sudo modprobe overlay && sudo modprobe br\_netfilter

sudo modprobe overlay && sudo modprobe br\_netfilter 

sudo tee /etc/sysctl.d/kubernetes.conf \<\

sudo sysctl \--system 

sudo apt update && sudo apt install \-y curl gnupg2 software-properties-common apt-transport-https ca-certificates 

curl \-fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg \--dearmor \-o /etc/apt/trusted.gpg.d/containerd.gpgsudo add-apt-repository "deb \[arch=amd64\] https://download.docker.com/linux/ubuntu $(lsb\_release \-cs) stable" 

sudo apt update && sudo apt install containerd.io \-y 

containerd config default | sudo tee /etc/containerd/config.toml \>/dev/nullsudo sed \-i 's/SystemdCgroup \= false/SystemdCgroup \= true/g' /etc/containerd/config.toml 

sudo systemctl restart containerd

sudo systemctl status containerd 

● containerd.service - containerd container runtime
     Loaded: loaded (/usr/lib/systemd/system/containerd.service; enabled; preset: enabled)
     Active: active (running) since Mon 2025-02-17 16:20:34 UTC; 2h 17min ago
       Docs: https://containerd.io
    Process: 738 ExecStartPre=/sbin/modprobe overlay (code=exited, status=0/SUCCESS)
   Main PID: 741 (containerd)
      Tasks: 156
     Memory: 201.3M (peak: 229.5M)
        CPU: 20min 13.594s
     CGroup: /system.slice/containerd.service
             ├─  741 /usr/bin/containerd
             ├─ 1138 /usr/bin/containerd-shim-runc-v2 -namespace k8s.io -id 53e05d7bda37772f5869ec026de03b40d4ce532ba0303c42be5184994439b3bf -address /run/containerd/containerd.sock
             ├─ 1139 /usr/bin/containerd-shim-runc-v2 -namespace k8s.io -id 5398ebda2355cad57be69e19bf098e4202fe259a61270ea9cc274b81f77977ab -address /run/containerd/containerd.sock
             ├─ 1140 /usr/bin/containerd-shim-runc-v2 -namespace k8s.io -id e4f1f987a5fb8db03db049b518fdfe6680b8c83617733de91620948c6bc00c95 -address /run/containerd/containerd.sock
             ├─ 1150 /usr/bin/containerd-shim-runc-v2 -namespace k8s.io -id 24d231aefec7bde2646ae123758907e5d464973705d8c0cd9d8db67756c19ef2 -address /run/containerd/containerd.sock
             ├─ 1547 /usr/bin/containerd-shim-runc-v2 -namespace k8s.io -id 4d7ddac790ef53cb30823d45ed4b675d54cf66694833158f8d15f0ba93b93e2c -address /run/containerd/containerd.sock
             ├─ 2267 /usr/bin/containerd-shim-runc-v2 -namespace k8s.io -id 72b50ae3cea036f3b51e18bf9b900ccd46399fed052bf51a41bcea735062f413 -address /run/containerd/containerd.sock
             ├─ 2377 /usr/bin/containerd-shim-runc-v2 -namespace k8s.io -id 2fcb5f2766fc1ff28a8a020c10eb1aff4b1895eb7ade8af65c72bedd0a634ead -address /run/containerd/containerd.sock
             ├─ 2434 /usr/bin/containerd-shim-runc-v2 -namespace k8s.io -id d6f43f441495e4a00387114d5d7462bc54b1a592bd41bc1ee1709d16d507633b -address /run/containerd/containerd.sock
             └─27675 /usr/bin/containerd-shim-runc-v2 -namespace k8s.io -id 2b645f1523cda54eb099d35542d77347071c2cdaef648a7e5559ec01779bac29 -address /run/containerd/containerd.sock

curl \-fsSL https://pkgs.k8s.io/core:/stable:/v1.30/deb/Release.key | sudo gpg \--dearmor \-o /etc/apt/keyrings/k8s.gpg

echo 'deb \[signed-by=/etc/apt/keyrings/k8s.gpg\] https://pkgs.k8s.io/core:/stable:/v1.31/deb/ /' | sudo tee /etc/apt/sources.list.d/k8s.list 

sudo apt updatesudo apt install kubelet kubeadm kubectl \-y

sudo kubeadm init \--control\-plane\-endpoint=\ 

sudo kubeadm init \--control\-plane\-endpoint=kb1 

mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config

sudo kubeadm join 192.168.0.112:6443 \--token \ \--discovery-token-ca\-cert-hash sha256:\

kubectl get nodes 

NAME   STATUS   ROLES           AGE   VERSION
kb1    NotReady    control-plane   10d   v1.31.5
kb2    NotReady              10d   v1.31.5

kubectl create \-f https://raw.githubusercontent.com/projectcalico/calico/v3\.28.2/manifests/calico.yaml 

kubectl get nodes 

NAME                                      READY   STATUS    RESTARTS      AGE
calico-kube-controllers-b8d8894fb-rz6zx   1/1     Running   3 (24h ago)   7d21h
calico-node-4klgg                         1/1     Running   0             24h
calico-node-9c9lg                         1/1     Running   0             24h
coredns-7c65d6cfc9-8f26s                  1/1     Running   3 (24h ago)   7d21h
coredns-7c65d6cfc9-sgsvc                  1/1     Running   3 (24h ago)   7d21h
etcd-kb1                                  1/1     Running   4 (24h ago)   10d
kube-apiserver-kb1                        1/1     Running   4 (24h ago)   10d
kube-controller-manager-kb1               1/1     Running   9 (24h ago)   10d
kube-proxy-h5fnm                          1/1     Running   2 (25h ago)   10d
kube-proxy-n9zts                          1/1     Running   4 (24h ago)   10d
kube-scheduler-kb1                        1/1     Running   7 (24h ago)   10d

kubectl get nodes 

NAME        TYPE       CLUSTER-IP       EXTERNAL-IP   PORT(S)        AGE
nginx-app   NodePort   10.110.254.203           80:31809/TCP   50s

 kubectl create ns demo-app 

kubectl get namespace 

kubectl create deployment nginx\-app \--image nginx \--replicas 2 \--namespace demo\-app

kubectl get deployment \-n demo\-app 

kubectl expose deployment nginx-app \-n demo-app \--type NodePort \--port 80 

kubectl get svc \-n demo-app 

curl http://192.168.0.113:\ 

If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.

For online documentation and support please refer to
nginx.org.
Commercial support is available at
nginx.com.

Thank you for using nginx.