CentOS7下安装Docker-Compose

Docker-Compose是一个部署多个容器的简单但是非常必要的工具。

安装Docker-Compose之前，请先安装 python-pip

　　安装 python-pip

1、首先检查linux有没有安装python-pip包，终端执行 pip -V

[root@gm]# pip -V
-bash: pip: command not found

2、没有python-pip包就执行命令 yum -y install epel-release

[root@gm]# yum -y install epel-release
Loaded plugins: fastestmirror, langpacks
...
...
...
Complete!

3、执行成功之后，再次执行yum -y install python-pip

[root@gm]# yum install python-pip
Loaded plugins: fastestmirror, langpacks
.
.
.
Dependency Installed:
  python-backports.x86_64 0:1.0-8.el7                           python-backports-ssl_match_hostname.noarch 0:3.4.0.2-4.el7                           python-setuptools.noarch 0:0.9.8-7.el7                         
 
Complete!

4、对安装好的pip进行升级 pip install --upgrade pip

[root@gm]# pip install --upgrade pip
Collecting pip
  Downloading https://files.pythonhosted.org/packages/0f/74/ecd13431bcc456ed390b44c8a6e917c1820365cbebcb6a8974d1cd045ab4/pip-10.0.1-py2.py3-none-any.whl (1.3MB)
    100% |████████████████████████████████| 1.3MB 225kB/s 
Installing collected packages: pip
  Found existing installation: pip 8.1.2
    Uninstalling pip-8.1.2:
      Successfully uninstalled pip-8.1.2
Successfully installed pip-10.0.1

至此，pip安装好了，执行pip -V 再次检查pip环境。

[root@gm]# pip -V
pip 10.0.1 from /usr/lib/python2.7/site-packages/pip (python 2.7)

安装Docker-Compose

1.终端执行：pip install docker-compose

报错：ReadTimeoutError: HTTPSConnectionPool(host='pypi.python.org', port=443): Read timed out

解决：pip --default-timeout=200 install -U docker-compose

[root@gm]# pip --default-timeout=200 install -U docker-compose
Collecting docker-compose
.
.
.
Running setup.py install for backports.ssl-match-hostname ... done
  Running setup.py install for texttable ... done
  Running setup.py install for functools32 ... done
Successfully installed PyYAML-3.12 backports.ssl-match-hostname-3.5.0.1 cached-property-1.3.1 docker-2.6.1 docker-compose-1.17.1 docker-pycreds-0.2.1 dockerpty-0.4.1 docopt-0.6.2 enum34-1.1.6 functools32-3.2.3.post2 ipaddress-1.0.18 jsonschema-2.6.0 requests-2.11.1 six-1.11.0 texttable-0.9.1 websocket-client-0.44.0

检查docker-compose 安装：docker-compose -version

[root@gm]# docker-compose -version
docker-compose version 1.21.2, build a133471

如果报错

pkg_resources.DistributionNotFound: backports.ssl-match-hostname>=3.5

解决方法：更新backports.ssl-match-hostname的版本，在终端输入命令
　　pip install --upgrade backports.ssl_match_hostname

　　如若python版本过低，需升级，见：http://www.cnblogs.com/YatHo/p/8257387.html