在CentOS上部署Kubernetes(k8s)集群可以通过多种方式实现,其中使用kubeadm是最常见的方法之一。以下是使用kubeadm在CentOS上部署k8s集群的基本步骤:
systemctl stop firewalld
,systemctl disable firewalld
setenforce 0
,sed -i 's/SELINUX.*/SELINUXdisabled/' /etc/selinux/config
swapoff -ased -i 's/.*swap./#&/' /etc/fstab
hostnamectl set-hostname k8s-master
192.168.1.1 k8s-master
192.168.1.2 k8s-node1
192.168.1.3 k8s-node2
curl -o /etc/yum.repos.d/docker-ce.repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum install -y docker-ce
systemctl start docker
systemctl enable docker
cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyuncs.com/kubernetes/yum/repos/kubernetes-el7-x86_64/
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=https://mirrors.aliyuncs.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyuncs.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF
yum install -y kubelet kubeadm kubectl
systemctl enable kubelet
systemctl start kubelet
kubeadm init --apiserver-advertise-address 192.168.1.1 --image-repository registry.aliyuncs.com/google_containers --kubernetes-version v1.22.0 --pod-network-cidr 10.244.0.0/16
mkdir -p $HOME/.kube
cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
chown $(id -u):$(id -g) $HOME/.kube/config
kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml
kubeadm join 192.168.1.1:6443 --token <token> --discovery-token-ca-cert-hash sha256:<hash>
kubectl get nodes
kubectl get pods --all-namespaces
以上步骤可以帮助你在CentOS上成功部署一个基本的Kubernetes集群。请根据你的实际需求和环境调整配置和版本。