1.26.3

yum install wget lrzsz ntpdate net-tools chrony bash-completion yum-utils nfs-utils -y
yum-config-manager --add-repo http://mirrors.aliyun.com/repo/epel-7.repo
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

yum -y install ipvsadm ipset sysstat conntrack libseccomp

yum -y install perl
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
yum -y install https://www.elrepo.org/elrepo-release-7.0-4.el7.elrepo.noarch.rpm
yum  --enablerepo="elrepo-kernel"  -y install kernel-ml.x86_64
grub2-set-default 0
grub2-mkconfig -o /boot/grub2/grub.cfg

#!/bin/bash
ipvs_mods_dir="/usr/lib/modules/$(uname -r)/kernel/net/netfilter/ipvs"
echo ''>/etc/modules-load.d/ipvs.conf
for i in $(ls $ipvs_mods_dir|grep -o "^[^.]*")
do
  echo $i >>/etc/modules-load.d/ipvs.conf
  /sbin/modinfo -F filename $i &>/dev/null
  if [ $? -eq 0 ];then
    /sbin/modprobe $i
  fi
done
systemctl enable --now systemd-modules-load.service

echo never > /sys/kernel/mm/transparent_hugepage/defrag
echo never > /sys/kernel/mm/transparent_hugepage/enabled
echo 'echo never > /sys/kernel/mm/transparent_hugepage/defrag'  >> /etc/rc.local
echo 'echo never > /sys/kernel/mm/transparent_hugepage/enabled'  >> /etc/rc.local

cat <<-EOF >> /etc/sysctl.conf
vm.swappiness=0
EOF
sysctl -p 

modprobe overlay
modprobe br_netfilter
cat <<EOF > /etc/sysctl.d/k8s.conf
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1
fs.may_detach_mounts = 1
vm.overcommit_memory=1
vm.panic_on_oom=0
fs.inotify.max_user_watches=89100
fs.file-max=52706963
fs.nr_open=52706963
net.netfilter.nf_conntrack_max=2310720
net.ipv4.tcp_keepalive_time = 600
net.ipv4.tcp_keepalive_probes = 3
net.ipv4.tcp_keepalive_intvl =15
net.ipv4.tcp_max_tw_buckets = 36000
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_max_orphans = 327680
net.ipv4.tcp_orphan_retries = 3
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_max_syn_backlog = 16384
net.ipv4.ip_conntrack_max = 131072
net.ipv4.tcp_max_syn_backlog = 16384
net.ipv4.tcp_timestamps = 0
net.core.somaxconn = 16384
EOF
sysctl -p
sysctl -p /etc/sysctl.d/k8s.conf

yum install wget jq psmisc vim net-tools telnet yum-utils unzip zip device-mapper-persistent-data lvm2 git lrzsz -y
cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF

yum install -y kubelet-1.26* kubectl-1.26* kubeadm-1.26* containerd.io

前面都是安装
这里注意
vim /etc/containerd/config.toml
注释掉这行
#disabled_plugins : ["cri"]
systemctl restart containerd && systemctl enable containerd
初始化
kubeadm init --apiserver-advertise-address=172.28.239.71 --image-repository registry.aliyuncs.com/google_containers --kubernetes-version v1.26.3 --service-cidr=10.96.0.0/16 --pod-network-cidr=10.244.0.0/16