CentOS7安装Docker和Kubadm

一、卸载旧版本的Docker

# 如果系统没有装过docker可跳过此步骤
[root@localhost luna]$ yum remove docker docker-common container-selinux docker-selinux docker-engine -y

二、安装yum-utils

[root@localhost luna]$ yum install -y yum-utils

三、配置稳定版的docker软件仓库

[root@localhost luna]$ yum-config-manager --add-repo 
https://download.docker.com/linux/centos/docker-ce.repo

四、安装Docker

# 执行docker安装命令
[root@localhost luna]$ yum makecache fast && sudo yum install docker-ce -y

[root@localhost luna]$ systemctl start docker  # 启动docker服务

[root@localhost luna]$ docker -v #查看版本

五、配置kubernetes yum源

[root@localhost luna]$ cat < /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF

六、安装kubelet、kubeadm、kubectl

[root@localhost luna]$ yum install -y kubelet kubeadm kubectl