linux环境安装、卸载、配置docker

1.docker卸载

• 卸载系统中docker

   sudo yum remove docker \
  				docker-client \
  				docker-client-latest \
  				docker-common \
  				docker-latest \
  				docker-latest-logrotate \
  				docker-logrotate \
  				docker-selinux \
  				docker-engine-selinux \
  				docker-engine
  

• 删除docker文件

  rm -rf /etc/systemd/system/docker.service.d
  rm -rf /var/lib/docker
  rm -rf /var/run/docker
  

• 检查包管理工具

  rpm -qa|grep docker
  rpm -e '包名称'
  

2.docker安装

• 检查linux内核(要求linux内核在3.10以上)

  uname -r
  

• 安装仓库

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

• 更改下载仓库改为阿里云

  yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
  

• 更新yum包

  yum makecache fast
  

• 安装docker

  yum install -y docker-ce
  

• 配置镜像加速

  sudo vim /etc/docker/daemon.json
  {
         
  	"registry-mirrors": ["https://registry.docker-cn.com"]
  }
  

• 加载配置文件并重启docker

  systemctl daemon-reload
  systemctl restart docker
  

• 设置开机启动docker

  systemctl enable docker