2022-02-23:如何搭建k8s单机环境(用k3s),并且搭建dashboard?

答案2022-02-03:

使用场景:个人电脑。需要安装虚拟机,操作系统是centos。 个人电脑上测试,不需要安装k8s。k8s太重量级了。

1.安装docker,不是必须的

查看是否安装docker

yum list installed | grep docker

#删除docker

yum remove –y docker.x86_64   
yum remove –y docker-client.x86_64
yum remove –y docker-common.x86_64

安装docker

curl -sSL https://get.daocloud.io/docker | sh
yum install –y docker-ce

镜像加速

cat /etc/docker/daemon.json

修改 /etc/docker/daemon.json 文件内容

{
    "registry-mirrors":["https://docker.mirrors.ustc.edu.cn","https://kzorq22x.mirror.aliyuncs.com","http://hub-mirror.c.163.com"]
}

运行docker

systemctl daemon-reload
systemctl start docker
systemctl status docker

2.安装k3s

安装k3s,用docker容器,不建议用。测试失败。

curl -sfL http://rancher-mirror.cnrancher.com/k3s/k3s-install.sh | INSTALL_K3S_MIRROR=cn sh -s - --docker  --service-node-port-range 10000-65535

安装k3s,用containerd容器,建议用这个

curl -sfL http://rancher-mirror.cnrancher.com/k3s/k3s-install.sh | INSTALL_K3S_MIRROR=cn sh -s -  --service-node-port-range 10000-65535
systemctl status k3s

卸载k3s

cd /usr/local/bin
k3s-killall.sh
k3s-uninstall.sh

3.安装dashboard

安装指令

k3s kubectl apply -f https://kuboard.cn/install-script/kuboard.yaml
k3s kubectl apply -f https://addons.kuboard.cn/metrics-server/0.3.7/metrics-server.yaml
 

卸载指令

k3s kubectl delete -f https://kuboard.cn/install-script/kuboard.yaml
k3s kubectl delete -f https://addons.kuboard.cn/metrics-server/0.3.7/metrics-server.yaml
 

获取Token

echo $(k3s kubectl -n kube-system get secret $(k3s kubectl -n kube-system get secret | grep ^kuboard-user | awk '{print $1}') -o go-template='{{.data.token}}' | base64 -d)

4.输入网址

查看网址

k3s kubectl get svc -n kube-system

从结果里可以看出,端口号是32567 [root@zdf bin]# k3s kubectl get svc -n kube-system NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kube-dns ClusterIP 10.43.0.10 53/UDP,53/TCP,9153/TCP 9m kuboard NodePort 10.43.14.155 80:32567/TCP 6m51s metrics-server ClusterIP 10.43.251.251 443/TCP 8m59s traefik LoadBalancer 10.43.24.24 192.168.204.14 80:64064/TCP,443:59762/TCP 4m58s

输入网址,输入token,如下图: 在这里插入图片描述 在这里插入图片描述