基础环境部署

k8s 集群 ip 规划

master1: 172.16.40.110/24
node1: 172.16.40.120/24

设置主机名 master

hostnamectl set-hostname master

设置主机名 node

hostnamectl set-hostname node

配置 主机名 解析

echo "172.16.40.110 master" >> /etc/hosts
echo "172.16.40.120 node" >> /etc/hosts

关闭防火墙

systemctl stop firewalld
systemctl disable firewalld

将 SELinux 设置为 permissive 模式

setenforce 0
sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config

关闭 NetworkManager

systemctl disable --now NetworkManager
systemctl start network && systemctl enable network

删除原有 repo 源

rm -rf /etc/yum.repos.d/*

配置阿里云 repo 源

curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo

yum install yum-utils -y

yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

yum clean all && yum makecache

时间同步

yum install chrony -y

sed -i '/^server/d' /etc/chrony.conf
sed -i '1s;^;allow 172.16.40.0/24\n;' /etc/chrony.conf
sed -i '1s;^;local stratum 10\n;' /etc/chrony.conf
sed -i '1s;^;server master1 iburst\n;' /etc/chrony.conf

systemctl enable chronyd
systemctl restart chronyd
systemctl status chronyd
chronyc sources

End