1. Install Django

On Linux, we can install Django directly using pip

 

1.1 Install Python (use the python that comes with CentOS 7.5)

[root@localhost ~]# python --version
Python 2.7.5

 

1.2 Download the get-pip.py file online to install pip:

wget https://bootstrap.pypa.io/get-pip.py

 

1.3 pip installation django

[root@localhost ~]# pip install django
[root@localhost ~]# python
Python 2.7.5 (default, Jul 13 2018, 13:06:57)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-28)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import django
>>> django.get_version()
'1.11.14'

 

2. Install Apache

Install Apache on Linux using yum

[root@localhost ~]# yum install httpd
[root@localhost ~]# httpd -V
[Thu Aug 16 20:57:04.487586 2018] [so:warn] [pid 1605] AH01574: module wsgi_module is already loaded, skipping
Server version: Apache/2.4.6 (CentOS)
Server built:   Jun 27 2018 13:48:59
Server's Module Magic Number: 20120211:24
Server loaded:  APR 1.4.8, APR-UTIL 1.5.2
Compiled using: APR 1.4.8, APR-UTIL 1.5.2
Architecture:   64-bit
Server MPM:     prefork
  threaded:     no
    forked:     yes (variable process count)

Note: The installation directory of httpd installed with yum is located at / etc/httpd /. We only need to configure / etc/httpd/conf/httpd.conf.

 

3. Install Mysql

We use Yum to install Mysql. We need to update the yum source first.

 

[root@localhost ~]# wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
[root@localhost ~]# rpm -ivh mysql57-community-release-el7-8.noarch.rpm
[root@localhost ~]# yum install mysql-community-server

 

Note: The file directory of Mysql installed by yum is as follows

• Configuration file: / etc/my.cnf
• Log file: / var/log/var/log/mysqld.log
• Service startup script: / usr / lib / system D / system / mysqld.
• socket file: / var/run/mysqld/mysqld.pid

 

4. Configuration (emphasis)

The above three steps are very easy, but it took me a lot of time to configure these three environments well.

4.1 Configure Mysql

 

[root@localhost ~]# systemctl start mysqld
# When the Mysql service is turned on, a default password is set for root. Let's reset the password first.
# Get the default password
[root@localhost ~]# cat /var/log/mysqld.log | grep -i password
[root@localhost ~]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 5.7.23 MySQL Community Server (GPL)

mysql>ALTER USER 'root'@'localhost' IDENTIFIED BY 'Sam_tech_0912';

# After resetting the password, we create a database because subsequent django connections to Mysql require the database name to be entered.
mysql> create database Platform default charset=utf8;
Query OK, 1 row affected (0.00 sec)

mysql> quit
Bye

 

4.2 Configure Mysql in django

 

Configuration of Mysql in django:

DATABASES = {
    'default': {
        # 'ENGINE': 'django.db.backends.sqlite3',
        # 'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'Platform',
        'HOST': '127.0.0.1',
        'PORT': '3306',
        'USER': 'root',
        'PASSWORD': 'Sam_tech_0912',
    }
}

 

Configuration of other parts of django:

DEBUG = True

ALLOWED_HOSTS = ["*",]

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, "templates"),],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

LANGUAGE_CODE = 'zh-hans'

TIME_ZONE = 'Asia/Shanghai'

USE_I18N = True

USE_L10N = True

USE_TZ = True

STATIC_URL = '/static/'
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, "static"),
]

MEDIA_URL = "/media/"
MEDIA_ROOT = os.path.join(BASE_DIR, "media")

 

4.3 Configuration of Apache

 

Focus: Installing mod_wsgi

[root@localhost ~]# yum install mod_wsgi
[root@localhost ~]# rpm -qa | grep wsgi
mod_wsgi-3.4-12.el7_0.x86_64

 

Edit the configuration file/etc/httpd/conf/httpd.conf

ServerRoot "/etc/httpd"

# Setting the port number that Apache listens on, you can set more than one
Listen 80

# Emphasis: This sentence is to load the newly installed wsgi module, with which django can be deployed to Apache, remember!!!
LoadModule wsgi_module modules/mod_wsgi.so


Include conf.modules.d/*.conf

User apache
Group apache

ServerAdmin root@localhost

ServerName localhost:80

<Directory />
    AllowOverride none
    Require all denied
</Directory>

    DocumentRoot "/var/www/html"

<Directory "/var/www">
    AllowOverride None
    Require all granted
</Directory>

<Directory "/var/www/html">
    Options Indexes FollowSymLinks

    AllowOverride None

    Require all granted
</Directory>

<IfModule dir_module>
    DirectoryIndex index.html
</IfModule>

<Files ".ht*">
    Require all denied
</Files>

ErrorLog "logs/error_log"

LogLevel warn

<IfModule log_config_module>
    LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
    LogFormat "%h %l %u %t \"%r\" %>s %b" common

    <IfModule logio_module>
      LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
    </IfModule>

    CustomLog "logs/access_log" combined
</IfModule>

<IfModule alias_module>

    ScriptAlias /cgi-bin/ "/var/www/cgi-bin/"

</IfModule>

<Directory "/var/www/cgi-bin">
    AllowOverride None
    Options None
    Require all granted
</Directory>

<IfModule mime_module>
    TypesConfig /etc/mime.types

    AddType application/x-compress .Z
    AddType application/x-gzip .gz .tgz



    AddType text/html .shtml
    AddOutputFilter INCLUDES .shtml
</IfModule>

AddDefaultCharset UTF-8

<IfModule mime_magic_module>
    MIMEMagicFile conf/magic
</IfModule>


EnableSendfile on

IncludeOptional conf.d/*.conf

# We create a new httpd-vhosts.conf virtual host configuration file under / etc/httpd/conf/, and complete the configuration of port 80.
# This sentence tells Apache to call httpd-vhosts.conf
# The configuration parameters in the virtual host will override the settings in the httpd.conf master configuration file
Include conf/httpd-vhosts.conf

 

Virtual Host Profile (Key Step)

<VirtualHost *:80>
    ServerAdmin samliuming@aliyun.com
    DocumentRoot "/home/python_projects/Platform"
    ServerName samlinux01-platform.com
    ServerAlias sam-platform.com
    ErrorLog "logs/platform_error.log"
    CustomLog "logs/platform_access.log" common


    WSGIScriptAlias / "/home/python_projects/Platform/Platform/wsgi.py"
    # Be sure to define python-path To the project catalog, otherwise it will report errors that related modules can not find, remember!!!
    WSGIDaemonProcess samlinux01-platform.com python-path=/home/python_projects/Platform
    WSGIProcessGroup samlinux01-platform.com
    WSGIScriptReloading On
    
    # Set Apache's project directory for accessing django

    Alias /static /home/python_projects/Platform/static
    Alias /media /home/python_projects/Platform/media

    <Directory /home/python_projects/Platform/media>
        AllowOverride None
        Options Indexes FollowSymLinks
        Require all granted
    </Directory>
    <Directory /home/python_projects/Platform/static>
        AllowOverride None
        Options Indexes FollowSymLinks
        Require all granted
    </Directory>
    <Directory /home/python_projects/Platform/Platform>
        <Files wsgi.py>
            AllowOverride None
            Require all granted
        </Files>
    </Directory>
</VirtualHost>

Note: The httpd service needs to be restarted after each edit is completed to make the configuration effective

[root@localhost ~]# httpd -t
[Thu Aug 16 20:35:06.439115 2018] [so:warn] [pid 1520] AH01574: module wsgi_module is already loaded, skipping
Syntax OK
[root@localhost ~]# systemctl restart httpd.service

 

Edit the wsgi.py file in django

"""
WSGI config for Platform project.

It exposes the WSGI callable as a module-level variable named ``application``.

For more information on this file, see
https://docs.djangoproject.com/en/1.11/howto/deployment/wsgi/
"""

import os

from django.core.wsgi import get_wsgi_application

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "Platform.settings")

application = get_wsgi_application()

# Add project path to python In environmental variables
# For Apache server
import sys
project_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.insert(0, project_dir)

 

So far, with great success, we can directly access our project through port 80. Although the steps above are simple, the information on the Internet is not particularly detailed and complete. There are still many detours in the middle, so we deliberately record the configuration steps to facilitate subsequent reconfiguration.