docker搭建Rancher K3S服务_rancher-mirror

一、环境准备

         准备4台内存为4G且安装好docker和docker-compose的服务器A,B,C,D 可参考

         其中一台A安装rancher-server,3台BCD安装rancher-agent(worker)。

二、在A上安装K3S-Server

        声明环境变量

          export INSTALL_K3S_VERSION=v1.18.9+k3s1

          export INSTALL_K3S_EXEC="--docker --kube-apiserver-arg service-node-port-range=1-65000 --no-deploy traefik --write-kubeconfig ~/.kube/config --write-kubeconfig-mode 666"

        安装 curl -sfL http://rancher-mirror.cnrancher.com/k3s/k3s-install.sh | INSTALL_K3S_MIRROR=cn sh -

三、在BCD上安装K3S-Agent

        获取server的tokes

               在A上cat /var/lib/rancher/k3s/server/node-token

       分别在BCD上安装agent

              export INSTALL_K3S_VERSION=v1.18.9+k3s1

              export K3S_TOKEN=XXX

              export K3S_URL=https://yourIP:6443

              export INSTALL_K3S_EXEC="--docker --kube-apiserver-arg service-node-port-range=1-65000 --no-deploy traefik --write-kubeconfig ~/.kube/config --write-kubeconfig-mode 666"

              安装 curl -sfL http://rancher-mirror.cnrancher.com/k3s/k3s-install.sh | INSTALL_K3S_MIRROR=cn sh -

              在A上通过kubectl get nodes 可以查看节点状态

四、在A上安装RancherUI

        docker run -d --restart=unless-stopped -p 9443:443 -v /services/rancher/rancher-data/server/var/lib/rancher:/var/lib/rancher/ -v /etc/timezone:/etc/timezone -v /etc/localtime:/etc/localtime rancher/rancher:stable

        访问rancher 导入集群：创建集群 -> 导入 -> 在A上运行脚本