国内安装Docker CE和docker compose及卸载docker＋配置阿里云的docker镜像加速

安装的系统为ubuntu18.04

Docker CE安装

替换为国内的源,修改文件/etc/apt/source.list

使用阿里云的源，替换为

#阿里源 
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb [arch=amd64] http://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic stable
# deb-src [arch=amd64] http://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic stable
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

安装Docker CE

# step 1: 安装必要的一些系统工具
sudo apt-get update
sudo apt-get -y install apt-transport-https ca-certificates curl software-properties-common
# step 2: 安装GPG证书
curl -fsSL http://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -
# 验证指纹
sudo apt-key fingerprint 0EBFCD88
# Step 3: 写入软件源信息
sudo add-apt-repository "deb [arch=amd64] http://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"
# Step 4: 更新并安装 Docker-CE
sudo apt-get -y update
sudo apt-get -y install docker-ce

# 安装指定版本的Docker-CE:
# Step 1: 查找Docker-CE的版本:
# apt-cache madison docker-ce
#   docker-ce | 17.03.1~ce-0~ubuntu-xenial | http://mirrors.aliyun.com/docker-ce/linux/ubuntu xenial/stable amd64 Packages
#   docker-ce | 17.03.0~ce-0~ubuntu-xenial | http://mirrors.aliyun.com/docker-ce/linux/ubuntu xenial/stable amd64 Packages
# Step 2: 安装指定版本的Docker-CE: (VERSION 例如上面的 17.03.1~ce-0~ubuntu-xenial)
# sudo apt-get -y install docker-ce=[VERSION]

配置镜像加速器

进入 https://cr.console.aliyun.com/#/accelerator

阿里云会给你分配一个专属加速器地址。具体操作点此查看

修改daemon配置文件/etc/docker/daemon.json来使用加速器

sudo vim /etc/docker/daemon.json

配置成

{
  "registry-mirrors": ["你的加速地址"]
}

编辑完成daemon.json重启Docker

sudo systemctl daemon-reload
sudo systemctl restart docker

测试安装

sudo docker run hello-world

很快出现结果。

docker compose安装

参考daocloud的https://get.daocloud.io/#install-compose

Docker Compose 存放在Git Hub，不太稳定。
你可以也通过执行下面的命令，高速安装Docker Compose。

sudo curl -L https://get.daocloud.io/docker/compose/releases/download/1.25.4/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose

或着

sudo curl -L https://get.daocloud.io/docker/compose/releases/download/1.25.4/docker-compose-`uname -s`-`uname -m` -o  /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose

你可以通过修改URL中的版本，可以自定义您的需要的版本。

测试安装

docker-compose --version
docker-compose version 1.22.0, build 1719ceb

卸载Docker

sudo apt-get remove docker docker-engine

卸载Docker后,/var/lib/docker/目录下会保留原Docker的镜像,网络,存储卷等文件. 如果需要全新安装Docker,需要删除/var/lib/docker/目录

rm -fr /var/lib/docker/