此文为了在CentOS 6上安装docker部署环境而写，主要目的是安装docker-compose工具，为部署docker应用方便。
安装docker-io
yum install epel-release
yum install docker-io
安装开发工具和Python2.7
yum groupinstall “Development”
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel
wget https://www.python.org/ftp/python/2.7.8/Python-2.7.8.tar.xz
tar -xvf Python-2.7.8.tar.xz
cd Python-2.7.8
./configure –prefix=/usr/local
make && make altinstall
mv /usr/bin/python /usr/bin/python2.6.6
ln -s /usr/local/bin/python2.7 /usr/bin/python
vi /usr/bin/yum CHANGE to python2.6.6
安装pip
wget https://raw.githubusercontent.com/pypa/pip/master/contrib/get-pip.py
python get-pip.py
安装docker-compose
pip install docker-compose
快速进入docker
更简单的，建议大家下载 .bashrc_docker，并将内容放到 .bashrc 中。
wget -P ~ https://github.com/yeasy/docker_practice/raw/master/_local/.bashrc_docker;
echo “[ -f ~/.bashrc_docker ] && . ~/.bashrc_docker” >> ~/.bashrc; source ~/.bashrc
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