K8s集群

统一时间：ntpdate(都做)

ntpdate -b ntp1.aliyun.com

*/1 * * * * /usr/sbin/ntpdate -b ntp1.aliyun.com

systemctl status docker

vi /etc/docker/daemon.json

systemctl restart docker

m: vim kubernetes.sh

cat >> /etc/yum.repos.d/kubernetes.repo <<eof

[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
eof

yum -y install kubeadm-1.23.5 kubelet-1.23.5 kubectl-1.23.5 ipvsadm

cat >/etc/sysconfig/kubelet<<EOF
KUBELET_EXTRA_ARGS="--cgroup-driver=cgroupfs --pod-infra-container-image=registry.cn-hangzhou.aliyuncs.com/google_containers/pause-amd64:3.1"
EOF

modprobe br_netfilter

cat >> /etc/sysctl.conf <<eof
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
vm.swappiness=0
eof

sysctl -p

bash

二：部署Kubernetes

1、下载镜像（3台）

上传镜像压缩包、在压缩包目录下执行

2.镜像导入

vim image_load.sh （压缩包目录下）

#!/bin/bash
image_path=`pwd`
for i in `ls "${image_path}" | grep tar`
do
docker load < $i
done

3台都执行（注意路径）

3.master节点初始化

重新初始化（出错了）

rm -rf /etc/cni/net.d

重新初始化

kubeadm init --kubernetes-version=1.23.5 --pod-network-cidr=10.244.0.0/16 --apiserver-advertise-address=192.168.142.151

上传yaml

node-1

node-2

node-1\2

kubeadm join 192.168.142.151:6443 --token 4padyv.4rztz07ps5ri47gi --discovery-token-ca-cert-hash sha256:6ee90bad97f1320a89ea85fb2d54ded9f3d1d3a6b5f6c0a476a06bfc25dd5db0

cd 1.23.5

kubeadm reset

rm -rf /etc/cni/net.d/

kubeadm join 192.168.142.151:6443 --token 4padyv.4rztz07ps5ri47gi --discovery-token-ca-cert-hash sha256:6ee90bad97f1320a89ea85fb2d54ded9f3d1d3a6b5f6c0a476a06bfc25dd5db0

master:kubectl get nodes