yum update
yum-util 提供yum-config-manager功能，另外两个是devicemapper驱动依赖的 yum install -y yum-utils device-mapper-persistent-data lvm2
1.3 设置yum源
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
yum list docker-ce --showduplicates | sort -r
1.5 安装docker
yum install docker-ce
systemctl start docker
systemctl enable docker
//下载源码，安装依赖 * wget https://www.python.org/ftp/python/3.8.1/Python-3.8.1.tar.xz * yum -y install gcc zlib-devel openssl-devel * tar -xJvf Python-3.8.1.tar.xz * yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel * yum install zlib* -y * mkdir /usr/local/python3 ? //编译安装 * cd Python-3.8.1 * ./configure --prefix=/usr/local/python3 --enable-optimizations --with-ssl * make * make install ? //创建软连接 * ln -s /usr/local/python3/bin/python3 /usr/bin/python3 * ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
//执行python命令检查版本 * python3 -V * pip -V
升级pip
* pip3 install --upgrade pip
* pip install --upgrade setuptools
2.2 安装docker-compose
pip3 install docker-compose
详见图片
yum -y install python-devel python-subprocess32
使用pip安装docker-compose依赖python3环境，而centos7系统默认自带的Python版本是2.7.5，第一次执行pip install docker-compose失败后，安装python-subprocess32包后，系统中Python环境对应的信息记录文件并未更新，需要删除后，让系统重新自动生成。
find / -name subpro.egg-info /usr/lib64/python2.7/site-packages/subprocess32-3.2.6-py2.7.egg-info
find / -name subpro.egg-info |xargs rm -rf
再次执行安装，pip install docker-compose，即可成功
原文：https://www.cnblogs.com/stone-dan-dan/p/CentOS7_Docker.html