注意：centos7.2使用docker可能出现各自bug，最好用centos7.6+

1.1 安装工具

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

1.2 添加docker的yum库

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

1.3 安装Docker

sudo yum install docker-ce docker-ce-cli containerd.io

1.4 启动&开机启动

sudo systemctl start docker
sudo systemctl enable docker

1.5 Docker镜像加速器

vi /etc/docker/daemon.json
{
  "registry-mirrors": ["http://5pfmrxk8.mirror.aliyuncs.com"]
}
sudo systemctl daemon-reload          //重新加载配置
sudo systemctl restart docker           //重启docker
或者直接执行：
sudo mkdir -p /etc/docker sudo tee /etc/docker/daemon.json <<-'EOF' { "registry-mirrors": ["http://5pfmrxk8.mirror.aliyuncs.com"] } EOF sudo systemctl daemon-reload sudo systemctl restart docker

测试docker

docker run hello-world

卸载docker

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

2.1. 下载docker-compose

sudo curl -L "http://github.com/docker/compose/releases/download/1.24.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

如果下载比较慢可以使用如下命令安装：

sudo curl -L http://get.daocloud.io/docker/compose/releases/download/1.24.1/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose

注意：上面的地址使用了占位符，是通过系统环境来决定URL，如果上面的方式都装不上，可以通过echo解析出真实的URL，通过浏览器下载安装如：

echo sudo curl -L "http://github.com/docker/compose/releases/download/1.24.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

sudo curl -L http://github.com/docker/compose/releases/download/1.24.1/docker-compose-Linux-x86_64 -o /usr/local/bin/docker-compose

或者：
拷贝：http://github.com/docker/compose/releases/download/1.24.1/docker-compose-Linux-x86_64在浏览器下载

然后上传到Linux “/usr/local/bin/docker-compose”目录即可

2.2 修改权限

sudo chmod +x /usr/local/bin/docker-compose

2.3. 创建软连接

sudo ln -s /usr/local/bin/docker-compose/docker-compose    /usr/bin/docker-compose

2.4 查看版本

docker-compose --version

2.5. 卸载

sudo rm /usr/local/bin/docker-compose