k3s_demo
环境准备
两台以上VM,假设hostname:IP分别为:
ubuntu-11: 192.168.0.11
ubuntu-12: 192.168.0.12
注意:hostname不能冲突
下载二进制
wget https://github.com/rancher/k3s/releases/download/v0.5.0/k3s -O /usr/local/bin/k3s
注意:拷贝二进制至每个VM下面;
下载配置文件
下载本项目的文件,如:
git clone https://github.com/lixiangyun/k3s_demo
假设目录为/root/k3s_demo
启动k3s server
登录ubuntu-11,执行如下操作:
cd /root/k3s_demo
touch /etc/systemd/system/k3s.service.env
cp k3s.service /etc/systemd/system/k3s.service
systemctl daemon-reload
systemctl enable k3s.service
systemctl start k3s.service
systemctl status k3s.service
如果启动状态OK,则k3s server启动成功。
将ubuntu-11上面生成node-token拷贝agent上面,如:
scp /var/lib/rancher/k3s/server/node-token root@192.168.0.12:node-token
启动k3s agent
添加ubuntu-11的IP地址添加到/etc/hosts
echo "192.168.0.11 k3s.server" >> /etc/hosts
将k3s.agent.service文件保存到系统文件中,并且启动。
touch /etc/systemd/system/k3s.service.env
echo "NODE_TOKEN=$(cat /root/node-token)" > /etc/systemd/system/k3s.service.env
systemctl daemon-reload
systemctl enable k3s.agent.service
systemctl start k3s.agent.service
systemctl status k3s.agent.service
查看状态
k3s kubectl get node
使用docker容器
k3s agent默认使用containerd,如果需要替换,请修改k3s.agent.service,如下:
ExecStart=/usr/local/bin/k3s agent --server https://k3s.server:6443 --token ${NODE_TOKEN} --docker