Apache+mod_wsgi+Python3.7.4部署Django HTTP应用

#一、阿里云CentOS7配置 以下以root用户来操作 赋予执行权限！！

(root)$ chmod +x /root

安装系统依赖

有Python、MySQL（可选）依赖、Elasticsearch对Java的依赖，Django-compressor的压缩需要的依赖bzip2-devel等

(root)$ yum -y update
(root)$ yum install -y install python-devel zlib-devel mysql-devel libffi-devel openssl-devel bzip2-devel ncurses-devel sqlite-devel readline-devel tk-devel java wget gcc make tmux

1.3 安装Python3.7.4最新版本

(root)$ wget https://www.python.org/ftp/python/3.7.4/Python-3.7.4.tgz

#编译python
(root)$ tar -zxvf Python-3.7.4.tgz
(root)$ cd Python-3.7.4
(root)$ ./configure --prefix=/usr/local/python3
(root)$ make&&make install

#添加软连接
(root)$ ln -s /usr/local/python3/bin/python3 /usr/bin/python3
(root)$ ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3

注意：加上--enable-optimizations后make的速度非常慢，但是执行Python代码时会有10%-20%的性能提升。

二、安装apache/redis

yum -y install httpd httpd-devel redis

启动apache

三、准备工作

安装虚拟环境，复制下虚拟环境的路径，exit退出虚拟环境，然后切换到Python3.7的安装包目录，执行以下命令

./configure --prefix=/root/.local/share/virtualenvs/zhihu-k2NuTCjv/ --enable-shared
make && make install

注意：Python3.7版本以后都要使用--enable-shared的命令。 然后搜索libpython3.7m.so.1.0

find / -name libpython3.7m.so.1.0
/root/.local/share/virtualenvs/zhihu-k2NuTCjv/lib/libpython3.7m.so.1.0
/root/Python-3.7.2/libpython3.7m.so.1.0

注意，是虚拟环境的路径。/root/.local/share/virtualenvs/zhihu-k2NuTCjv/lib/libpython3.7m.so.1.0复制下来，拷贝到/usr/lib64/目录下面

cp /root/.local/share/virtualenvs/zhihuuTCjv/lib/libpython3.7m.so.1.0 /usr/lib64/

此时才能安装mod_wsgi第三方包，进入虚拟环境！！

pipenv shell
pip3 install mod_wsgi
mod_wsgi-express install-module
LoadModule wsgi_module "/usr/lib64/httpd/modules/mod_wsgi-py37.cpython-37m-x86_64-linux-gnu.so"
WSGIPythonHome "/root/.local/share/virtualenvs/zhihu-k2NuTCjv"

修改apache配置

vim /etc/httpd/conf/httpd.conf

搜索Example，在226行加入如下命令

LoadModule wsgi_module "/usr/lib64/httpd/modules/mod_wsgi-py37.cpython-37m-x86_64-linux-gnu.so"

搜索ServerName，改成如下：

此时重启apache服务，使用的Python就会变成3.7版本

配置apache

创建文件并编辑

touch /etc/httpd/conf.d/django.conf

django.conf文件如下：

WSGIPythonHome /root/.local/share/virtualenvs/zhihu-k2NuTCjv
WSGIPythonPath /root/zhihu

<VirtualHost *:80>
    ServerName localhost
    Alias /static/ /root/zhihu/zhihu/staticfiles/
    Alias /media/ /root/zhihu/zhihu/media/

    <Directory /root/zhihu/zhihu/staticfiles>
        Require all granted
    </Directory>

    <Directory /root/zhihu/zhihu/media>
        Require all granted
    </Directory>

    <Directory /root/zhihu/config>
        <Files wsgi.py>
            Require all granted
        </Files>
    </Directory>

    WSGIDaemonProcess zhihu python-path=/root/.local/share/virtualenvs/zhihu-k2NuTCjv
    WSGIScriptAlias / /root/zhihu/config/wsgi.py

</VirtualHost>

保存后重启，部署成功！