2020最新版docker安装与配置

A.安装docker

=============================

0.卸载旧环境

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

1.安装必要的一些系统工具
sudo yum install -y yum-utils
2: 添加软件源信息，阿里源
sudo yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
3: 更新索引并安装Docker-CE
sudo yum makecache fast
sudo yum -y install docker-ce docker-ce-cli containerd.io

4: 开启Docker服务
sudo systemctl start docker

即可安装成功。检测当前版本：docker version

运行hello-world，

docker run hello-world

# 注意：
# 如果要安装指定版本的Docker-CE: (VERSION例如上面的17.03.0.ce.1-1.el7.centos)
# sudo yum -y install docker-ce-[VERSION]

B. 配置docker阿里云镜像加速

=======================================

https://cr.console.aliyun.com/cn-hangzhou/instances/mirrors

#针对Docker客户端版本大于 1.10.0 的用户

您可以通过修改daemon配置文件/etc/docker/daemon.json来使用加速器

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://xxxxyourself.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

 

C。卸载docker

=======================================

 

1. Uninstall the Docker Engine, CLI, and Containerd packages:

   $ sudo yum remove docker-ce docker-ce-cli containerd.io
   

2. Images, containers, volumes, or customized configuration files on your host are not automatically removed. To delete all images, containers, and volumes:

   $ sudo rm -rf /var/lib/docker