https://blog.csdn.net/langmeng110/article/details/119522721

使用sealos快速离线部署k8s
https://wenku.baidu.com/view/07a0525859cfa1c7aa00b52acfc789eb162d9e44.html
https://zhuanlan.zhihu.com/p/502275849
https://icloudnative.io/posts/sealos/

sealos

• 官网 https://www.sealos.io/zh-Hans/
• 视频介绍：
  https://www.bilibili.com/video/BV1oV4y1E7qo?spm_id_from=333.337.search-card.all.click&vd_source=db9c5d5b6ec505507016a3b0eb7d7869
• sealos离线安装 (以下系统统一使用centos7.9版)
  https://blog.csdn.net/lovebaby1689/article/details/121319500

关闭selinux
setenforce 0
sed -i 's/^ *SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
cat /etc/selinux/config
关闭 swap
swapoff -a && sudo sed -i 's/^.*swap/#&/g' /etc/fstab
#设置主机名
hostnamectl set-hostname node5
vi /etc/hosts #设置node5 
sudo sed -i "s/lren/$/g" /etc/hosts
sed -i "s/ localhost/ $/g" /etc/hosts
#测试代码
echo "127.0.1.1 lren" | sed "s/lren/$/g"
#时间同步
crontab -e
#安装apt install cron
0 */1 * * * ntpdate time1.aliyun.com
#无需yum install kubectl=1.24.0-00

wget https://github.com/labring/sealos/releases/download/v4.1.3/sealos_4.1.3_linux_amd64.tar.gz \
   && tar zxvf sealos_4.1.3_linux_amd64.tar.gz sealos && chmod +x sealos && mv sealos /usr/bin

wget https://github.com/labring/sealos/releases/download/v4.0.0/sealos_4.0.0_linux_amd64.tar.gz \
   && tar zxvf sealos_4.0.0_linux_amd64.tar.gz sealos && chmod +x sealos && mv sealos /usr/bin


# 创建单机集群
sealos run labring/kubernetes:v1.24.0 labring/calico:v3.22.1

#创建一个高可用集群
sealos run labring/kubernetes:v1.24.0 labring/calico:v3.22.1 \
     --masters 192.168.110.34,192.168.64.22,192.168.64.20 \
     --nodes 192.168.64.21,192.168.64.19 -p [your-ssh-passwd]



#添加主节点或者从节点
sealos add --masters 192.168.64.20 --nodes 192.168.64.21,192.168.64.22
#删除集群
sealos reset
#查看镜像的启动情况
crictl ps -a
crictl pods
crictl images

seaos使用配置文件启动集群

#生成Clusterfile
sealos gen labring/kubernetes:v1.24.0 labring/calico:v3.22.1 --masters 192.168.110.47 --nodes 192.168.110.48,192.168.110.49 --passwd lren.org > Clusterfile
#启动集群
sealos apply -f Clusterfile

sealctl 管理命令

#同级别命令
tar zxvf sealos_4.0.0_linux_amd64.tar.gz sealctl && chmod +x sealctl && mv sealctl /usr/bin
chmod +x sealctl &&mv sealctl /usr/bin/
sealctl get nodes #等于sealctl kube get nodes
sealos exec "cat /etc/hosts"

安装kubectl

yum update
#设置yum源
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=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 install kubectl=1.24.0-00
yum install kubectl

kubectl get nodes
kubeadm alpha certs check-expiration

sealer

https://github.com/sealerio/sealer