离线安装K3S
一、 安装docker
参照《DOCKER环境部署手册V1.docx》
二、 导入k3s镜像及安装文件准备
wget https://github.com/rancher/k3s/releases/download/v0.9.0/k3s-airgap-images-amd64.tar
docker load < k3s-airgap-images-amd64.tar
Loaded image: coredns/coredns:1.6.3
Loaded image: traefik:1.7.14
Loaded image: rancher/klipper-helm:v0.1.5
Loaded image: rancher/klipper-lb:v0.1.1
Loaded image: k8s.gcr.io/pause:3.1
wget https://github.com/rancher/k3s/releases/download/v0.9.0/k3s
wget https://github.com/rancher/k3s/blob/master/install.sh
mv k3s /usr/local/bin //将k3s二进制文件移动到k3s安装目录
chmod +x install.sh //赋予文件可执行权限
chmod +x k3s //赋予文件可执行权限
三、 部署k3s server
export INSTALL_K3S_SKIP_DOWNLOAD=true //设置跳过下载k3s二进制文件
export INSTALL_K3S_BIN_DIR=/usr/local/bin //设置k3s安装目录
直接执行./install.sh 遇到如下报错，按照提示安装依赖包即可。
[root@xxxxx k3s]# ./install.sh
[INFO] Skipping k3s download and verify
[ERROR] Failed to find the k3s-selinux policy, please install:
yum install -y container-selinux selinux-policy-base
rpm -i https://rpm.rancher.io/k3s-selinux-0.1.1-rc1.el7.noarch.rpm
修改配置
vi /etc/systemd/system/k3s.service
ExecStart=/usr/local/bin/k3s server --docker --no-deploy traefik
systemctl daemon-reload //刷新服务配置文件
systemctl restart k3s //启动k3d
四、 添加k3s agent
K3S_TOKEN是server端的，位于/var/lib/rancher/k3s/server/node-token下
cat /var/lib/rancher/k3s/server/node-token
在node节点执行命令，格式为
K3S_URL=${k3s_url} K3S_TOKEN=${k3s_token} ./install.sh
执行如下命令
K3S_TOKEN=xxxxxx K3S_URL=https://serverIP:6443 ./install.sh
启动失败，编辑配置文件/etc/systemd/system/k3s-agent.service
内容如下：
ExecStart=/usr/local/bin/k3s
agent --docker