ubuntu安装k8s教程

hostnamectl set-hostname master-ndsc

bash #刷新主机名

202.202.2.23 master-ndsc
202.202.2.2 node02
202.202.2.3 node03
202.202.2.4 node04
202.202.2.5 node05
202.202.2.6 node06

systemctl stop firewalld && systemctl disable firewalld

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

swapoff -a
sed -i '/swap/s/^\(.*\)$/#\1/g' /etc/fstab

free -m #查看是否关闭swap

cat <<eof >  /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables  = 1
net.ipv4.ip_forward                 = 1
eof

sysctl --system

sudo apt install -y chrony
sudo systemctl restart chrony
sudo systemctl status chrony
chronyc sources

{
"exec-opts": ["native.cgroupdriver=systemd"]
}

systemctl daemon-reload
systemctl restart docker

# 安装基础环境
apt-get install -y ca-certificates curl software-properties-common apt-transport-https curl
curl -s https://mirrors.aliyun.com/kubernetes/apt/doc/apt-key.gpg | sudo apt-key add -
# 执行配置k8s阿里云源  
vim /etc/apt/sources.list.d/kubernetes.list
#加入以下内容
deb https://mirrors.aliyun.com/kubernetes/apt/ kubernetes-xenial main
# 执行更新
apt-get update -y
#查看kubeadm kubelet kubectl有哪些版本，以及版本安装时的具体名称，例如1.23.6是错误的，要是1.23.6-00
apt-cache madison kubeadm kubelet kubectl
#安装指定版本的kubeadm kubelet kubectl
sudo apt update && \
sudo apt-get -y install kubelet=1.23.15-00 kubeadm=1.23.15-00 kubectl=1.23.15-00     # 安装的时候需要指定版本，否则会安装最新版本，node节点可以不需要安装kubectl
sudo apt-mark hold kubelet kubeadm kubectl        #阻止软件自动更新
systemctl start kubelet 
systemctl enable kubelet

查看安装的情况以及版本
kubectl version --client && kubeadm version

kubeadm init \
--apiserver-advertise-address=202.202.2.5 \
--image-repository registry.aliyuncs.com/google_containers \
--kubernetes-version v1.23.15 \
--service-cidr=10.96.0.0/12 \
--pod-network-cidr=10.244.0.0/16 \
--ignore-preflight-errors=all

kubeadm reset

kubeadm reset