docker 安装 卸载 Kubernetes安装

一般情况都会先学docker，然后再学Kubernetes。所有会先安装docker，然后就是安装Kubernetes。然后Kubernetes中包含了docker。安装会报错

1.docker安装

依赖包

yum install -y yum-utils device-mapper-persistent-data lvm2

docker软件包

yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

安装

yum install docker-ce 

启动与停止

systemctl start docker
systemctl stop docker
systemctl enbale docker

查询安装情况

yum list installed | grep docker
containerd.io.x86_64 1.2.4-3.1.el7 @docker-ce-edge
docker-ce-cli.x86_64 1:18.09.3-3.el7 @docker-ce-edge

卸载

yum -y remove docker-ce-cli.x86_64
yum -y remove containerd.io.x86_64

删除镜像/容器等

rm -rf /var/lib/docker
rm -rf /var/run/docker

安装kubernetes

yum install -y etcd kubernetes