linux 环境下用rancher安装k8s集群

准备环境：

3台机器

一、环境初始化

1）修改 /etc/sysctl.conf

将桥接的IPv4流量传递到iptables的链

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

生效

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1	sysctl -p /etc/sysctl.conf

2）关闭防火墙  关闭selinux  关闭swap

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systemctl stop firewalld && systemctl disable firewalld  sed -i 's/enforcing/disabled/' /etc/selinux/config && setenforce 0 swapoff -a && sed -ri 's/.*swap.*/#&/' /etc/fstab

3) 时间同步

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yum install ntpdate -y ntpdate ntp1.aliyun.com   date -R     #查看新时间是否已同步

4）重启

reboot       #注意确定好环境哈

　　

二、先为所有机器安装好docker

1、移除以前docker相关包

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sudo yum remove docker \                   docker-client \                   docker-client-latest \                   docker-common \                   docker-latest \                   docker-latest-logrotate \                   docker-logrotate \                   docker-engine

2、配置yum源

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sudo yum install -y yum-utils sudo yum-config-manager \ --add-repo \ http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

3、安装docker

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sudo yum install -y docker-ce docker-ce-cli containerd.io     #以下是在安装k8s的时候使用 yum install -y docker-ce-20.10.8 docker-ce-cli-20.10.8  containerd.io-1.4.10

4、启动并配置加速

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systemctl enable docker --now     sudo mkdir -p /etc/docker sudo tee /etc/docker/daemon.json <<-'EOF' {   "registry-mirrors": ["https://82m9ar63.mirror.aliyuncs.com"],   "exec-opts": ["native.cgroupdriver=systemd"],   "log-driver": "json-file",   "log-opts": {     "max-size": "100m"   },   "storage-driver": "overlay2" } EOF sudo systemctl daemon-reload sudo systemctl restart docker

　

三、部署rancher

 

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docker run -d --name=rancher --restart=unless-stopped \     -p 80:80 -p 443:443 \     --privileged \     -v /home/rancher:/var/lib/rancher \     rancher/rancher:latest

 

　　

 

 

 

参考链接：

https://zhuanlan.zhihu.com/p/403539342

https://blog.csdn.net/l2931050/article/details/124110605

https://blog.csdn.net/weixin_60092693/article/details/121665901

 https://blog.csdn.net/weixin_41636021/article/details/127976712