参考官网https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/
网络环境根据官方设置就没问题
开始操作
yum 阿里的源
vim /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=http://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=http://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg
http://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
安装 kubelet kubeadm kubectl
sudo setenforce 0
sudo sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config
sudo yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes
sudo systemctl enable --now kubelet
初始化
vim kubeadm.conf //新建
apiVersion: kubeadm.k8s.io/v1beta2
kind: InitConfiguration
localAPIEndpoint:
advertiseAddress: 172.16.81.197
bindPort: 6443
---
apiServer:
timeoutForControlPlane: 4m0s
certSANs:
- 121.196.50.89
apiVersion: kubeadm.k8s.io/v1beta2
certificatesDir: /etc/kubernetes/pki
clusterName: kubernetes
controllerManager: {}
dns:
type: CoreDNS
etcd:
local:
dataDir: /var/lib/etcd
serverCertSANs:
- 121.196.50.89
imageRepository: registry.aliyuncs.com/google_containers
kind: ClusterConfiguration
kubernetesVersion: v1.18.0
networking:
dnsDomain: cluster.local
serviceSubnet: 10.1.0.0/16
podSubnet: 10.244.0.0/16
---
apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
mode: ipvs
加载
kubeadm init --config kubeadm.conf --ignore-preflight-errors=Swap
image.png
执行上述的命令copy config到.kube下
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
kubectl get nodes
image.png
单master安装完成，基本新手入门按照这个流程配合官网的解释是没有问题的，下一篇讲加入集群
