在CentOS上安装K8s可参考以下步骤:
确保系统为CentOS 7.x或8.x,内核版本至少3.10,有足够内存、存储和CPU资源,且能访问互联网。
sudo yum update -y
。sudo systemctl stop firewalld
,sudo systemctl disable firewalld
,sudo setenforce 0
,sudo sed -i 's/^SELINUX=.*/SELINUX=disabled/' /etc/selinux/config
。sudo swapoff -a
,sudo sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab
。/etc/yum.repos.d/kubernetes.repo
文件,添加相应内容,如[kubernetes]
,baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/
等。sudo yum install -y kubelet kubeadm kubectl
,并设置开机自启。sudo kubeadm init --pod-network-cidr=10.244.0.0/16
,记录输出中的kubeadm join
命令。mkdir -p $HOME/.kube
,sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
,sudo chown $(id -u):$(id -g) $HOME/.kube/config
。kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
。kubeadm join
命令。kubectl get nodes
,查看节点状态是否为“Ready”。