2020最新版docker安裝與配置

A.安裝docker

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0.卸載舊環境

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

1.安裝必要的一些系統工具
sudo yum install -y yum-utils
2: 添加軟件源信息，阿里源
sudo yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
3: 更新索引並安裝Docker-CE
sudo yum makecache fast
sudo yum -y install docker-ce docker-ce-cli containerd.io

4: 開啟Docker服務
sudo systemctl start docker

即可安裝成功。檢測當前版本：docker version

運行hello-world，

docker run hello-world

# 注意：
# 如果要安裝指定版本的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阿里雲鏡像加速

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

#針對Docker客戶端版本大於 1.10.0 的用戶

您可以通過修改daemon配置文件/etc/docker/daemon.json來使用加速器

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。卸載docker

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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