二、Ansible配合virtualenv安装配置

virtuanlenv可以独立出来，不影响其他的程序调用python

2.1、ansible的两种安装模式（centos7）

2.1.1、yum包管理安装

#yum -y install ansible

--但是这种模式的安装会所有的用户都能用，包在python下，如果其他用户也安装了ansible，会形成ansible模块的混乱

2.1.1、git源代码安装(推荐)

#git clone https://github.com/ansible/ansible.git

 

wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tar.xz
[root@10.21.214.221 Python-3.6.5]# tar -xf Python-3.6.5.tar.xz 
[root@10.21.214.221 Python-3.6.5]# cd Python-3.6.5 
[root@10.21.214.221 Python-3.6.5]# ./configure --prefix=/usr/local --with-ensurepip=install --enable-shared LDFLAGS="-Wl,-rpath /usr/local/lib"
[root@10.21.214.221 Python-3.6.5]# make && make altinstall
[root@10.21.214.221 Python-3.6.5]# pip3.6 install virtualenv
pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Collecting virtualenv
  Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.",)': /simple/virtualenv/
  Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.",)': /simple/virtualenv/
  Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.",)': /simple/virtualenv/
  Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.",)': /simple/virtualenv/
  Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.",)': /simple/virtualenv/
  Could not fetch URL https://pypi.python.org/simple/virtualenv/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.python.org', port=443): Max retries exceeded with url: /simple/virtualenv/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.",)) - skipping
  Could not find a version that satisfies the requirement virtualenv (from versions: )
No matching distribution found for virtualenv

-----上面的报错是说https加密，本机上没有安装新版本的openssll，导致失败---
##方法一：通过浏览器下载 
https://pypi.python.org/simple/virtualenv/virtualenv-16.0.0-py2.py3-none-any.whl

[root@10.21.214.221 Python-3.6.5]# rz
rz waiting to receive.
 zmodem trl+C ȡ

  100%    1877 KB 1877 KB/s 00:00:01       0 Errorspy3-none-any.whl...

[root@10.21.214.221 Python-3.6.5]# pip3.6 install virtualenv-16.0.0-py2.py3-none-any.whl 
pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Processing ./virtualenv-16.0.0-py2.py3-none-any.whl
Installing collected packages: virtualenv
Successfully installed virtualenv-16.0.0

##方法二：安装新的opensll，重新编译python
[root@10.21.214.221 Python-3.6.5]# yum install -y openssl openssl-devel
[root@10.21.214.221 Python-3.6.5]# ./configure --enable-shared --enable-loadable-sqlite-extensions 
[root@10.21.214.221 Python-3.6.5]# make && make install
---重新安装，如果报错，根据提示，执行下面的
(.py3-a2.5-env) [deploy@10.21.214.221 .py3-a2.5-env]$ pip3.6 install --upgrade pip

[deploy@tan ~]$ cd /home/deploy/.py3-a2.5-env/
[deploy@tan .py3-a2.5-env]$ git clone https://github.com/ansible/ansible.git
[deploy@tan .py3-a2.5-env]$ source  bin/activate
(.py3-a2.5-env) [deploy@tan .py3-a2.5-env]$ pip3.6 install paramiko PyYAML jinja2
(.py3-a2.5-env) [deploy@10.21.214.221 .py3-a2.5-env]$ cd ansible/
(.py3-a2.5-env) [deploy@10.21.214.221 ansible]$ git checkout stable-2.5
(.py3-a2.5-env) [deploy@10.21.214.221 ansible]$ source  ./hacking/env-setup -q
(.py3-a2.5-env) [deploy@10.21.214.221 ansible]$ ansible --version