一、设置主机名
hostnamectl set-hostname master
hostnamectl set-hostname node1
修改host文件
vim /etc/hosts
关闭防火墙
systemctl stop firewalld && systemctl disable firewalld && firewall-cmd --state
关闭selinux
setenforce 0
sed -ri 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config
关闭交换分区
swapoff -a
添加内核参数配置文件
vim /etc/sysctl.d/Kubernetes.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
vm.swappiness = 0
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
vm.swappiness = 0
配置yum源
wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo
安装并启动docker
yum list docker-ce --showduplicates | sort -r
yum install -y docker-ce
systemctl start docker
systemctl enable docker
设置镜像源加速器
vim /etc/docker/daemon.json
{
"exec-opts": ["native.cgroupdriver=systemd"],
"registry-mirrors": ["https://mirror.ccs.tencentyun.com"]
}
systemctl daemon-reload
systemctl restart docker
配置kubernetes资源下载地址
systemctl daemon-reload
systemctl restart docker
vim /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg
https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
[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
安装kubelet、kubeadm/kubectl 设置开机自启动
先查看版本
yum list kubeadm.x86_64 --showduplicates | sort -r
yum list kubelet.x86_64 --showduplicates | sort -r
yum list kubectl.x86_64 --showduplicates | sort -r
指定1.19版本安装
yum -y install --setopt=obsoletes=0 kubeadm-1.19.3-0 kubelet-1.19.3-0 kubectl-1.19.3-0
systemctl enable kubelet.service
master主机初始化
kubeadm init --kubernetes-version=v1.19.3 --image-repository registry.aliyuncs.com/google_containers --pod-network-cidr=10.244.0.0/16 --service-cidr=10.96.0.0/12 --apiserver-advertise-address=0.0.0.0 --ignore-preflight-errors=Swap
