[root@localhost docker-elk]# python -V

 Python 2.7.5

 [root@localhost docker-elk]# pip -V

 -bash: pip: 未找到命令

首先下载并安装setuptools：

wget --no-check-certificate https://bootstrap.pypa.io/ez_setup.py

sudo python ez_setup.py --insecure

再到python官网下载pip安装包，解压到某个位置，我这里下载的是8.0.0版本，然后就可以安装了：

wget https://pypi.python.org/packages/11/b6/abcb525026a4be042b486df43905d6893fb04f05aac21c32c638e939e447/pip-9.0.1.tar.gz#md5=35f01da33009719497f01a4ba69d63c9

tar -xf pip-9.0.1.tar.gz

cd pip-9.0.1

sudo python setup.py install

ln -s /usr/local/python27/bin/pip /usr/bin/pip

 # 安装完成

 [root@localhost pip-9.0.1]# python -V

 Python 2.7.5

 [root@localhost pip-9.0.1]# pip -V

 pip 9.0.1 from /usr/lib/python2.7/site-packages/pip-9.0.1-py2.7.egg (python 2.7)