K8S Cluster Setup Steps (AWS Amazon Linux)

  yum install docker -y

 

 systemctl enable docker

 

 systemctl start docker

 

 curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64

 

 sudo install minikube-linux-amd64 /usr/local/bin/minikube && rm minikube-linux-amd64

 

 minikube version

 

 minikube start --driver=docker --force

 

  minikube status

  

 curl -LO https://dl.k8s.io/release/v1.30.0/bin/linux/amd64/kubectl

  

 sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl

 

 kubectl version

 

 Deploy Sample POd:

 https://kubernetes.io/docs/concepts/workloads/pods/

 

 

=======================================================================

Master 

1  hostnamectl set-hostname k8master

    

2  yum install docker -y

    

3  systemctl start docker;systemctl enable docker

    

4  sudo setenforce 0

 

5 Add K8S Repo:

cat <<EOF | sudo tee /etc/yum.repos.d/kubernetes.repo

[kubernetes]

name=Kubernetes

baseurl=https://pkgs.k8s.io/core:/stable:/v1.30/rpm/

enabled=1

gpgcheck=1

gpgkey=https://pkgs.k8s.io/core:/stable:/v1.30/rpm/repodata/repomd.xml.key

exclude=kubelet kubeadm kubectl cri-tools kubernetes-cni

EOF

6.yum repolist

    

7  sudo yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes --disableplugin=priorities

    

8  kubeadm init

  --> Note down kubeadm join commands:

  

9  kubectl get nodes

10  mkdir -p $HOME/.kube

   

11  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config

   

12  sudo chown $(id -u):$(id -g) $HOME/.kube/config

13  export KUBECONFIG=/etc/kubernetes/admin.conf

14. kubectl apply -f https://docs.projectcalico.org/v3.14/manifests/calico.yaml

15 kubectl get nodes

17 kubectl get pods -n kube-system

18  kubectl get nodes

Worker:

1  hostnamectl set-hostname k8worker1

    

2  yum install docker -y

    

3  systemctl start docker;systemctl enable docker

    

4  sudo setenforce 0

 

5 Add K8S Repo:

cat <<EOF | sudo tee /etc/yum.repos.d/kubernetes.repo

[kubernetes]

name=Kubernetes

baseurl=https://pkgs.k8s.io/core:/stable:/v1.30/rpm/

enabled=1

gpgcheck=1

gpgkey=https://pkgs.k8s.io/core:/stable:/v1.30/rpm/repodata/repomd.xml.key

exclude=kubelet kubeadm kubectl cri-tools kubernetes-cni

EOF

6.yum repolist

    

7  sudo yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes --disableplugin=priorities

8. Use join comamnd to connect control plain:  join command and token you can take from master 

 kubeadm join 172.31.63.238:6443 --token 15zdfy.iogdr2v5ngur6cwo \

>         --discovery-token-ca-cert-hash sha256:6fbc63b2d51467ec36482022d207af7672e1330168ceee673eb4182538f324fb